2000 chevrolet blazer fuel pump

If your 1999 Toyota Camry cranks but won’t start, or if it sputters and dies after running for a few minutes, the fuel pump is very likely the culprit. After decades of working on these cars, the simple conclusion is this: the original fuel pump in a 1999 Camry typically fails between 150,000 and 200,000 miles, and replacing it with a high quality unit (either a Denso or Aisin) will restore reliable operation for another 100,000+ miles. Do not buy the cheapest pump you find online, because poor fuel pressure will cause hard starting, lean misfires, and even engine damage. In this guide, you will learn exactly how to diagnose a bad pump, where it is located, what tools you need, and step by step how to replace it safely in your driveway or garage.

1. The Most Common Symptoms of a Failing Fuel Pump in a 1999 Toyota Camry

Before you spend any money, you need to be sure the fuel pump is actually the problem. The 1999 Camry gives you several clear warnings before the pump completely quits.

Symptom one: The engine cranks but will not start. This is the classic sign of a dead pump. When you turn the key to the “ON” position (not “START”), you should hear a soft whirring noise from the rear of the car for about two seconds. That noise is the fuel pump priming the system. If you hear nothing, either the pump is dead, the relay is bad, or the circuit has no power.

Symptom two: Intermittent stalling, especially in hot weather. Many owners report that their Camry runs fine for 20 minutes, then suddenly loses power and dies. After waiting 10–15 minutes, it starts again. This happens because the pump’s electric motor overheats and seizes. Once it cools down, it works temporarily. Do not ignore this – it will get worse until the car leaves you stranded.

Symptom three: Hesitation or sputtering under load. When you accelerate onto a highway or climb a hill, the engine needs more fuel. A weak pump cannot keep up, so the car bucks, jerks, or loses power. You might also notice that the engine runs fine at idle but stumbles when you press the gas pedal.

Symptom four: Long cranking time before starting. Normally, your Camry should fire up within one or two seconds of cranking. If you have to crank for three, four, or five seconds every time, the fuel pressure is bleeding off because of a bad check valve inside the pump. The system cannot hold residual pressure for the next start.

Symptom five: The check engine light comes on with codes P0171 or P0172. A failing pump can cause lean (too much air, not enough fuel) or rich (pump shorts and runs erratically) mixtures. Common codes are P0171 (system too lean, bank 1) and P0170 (fuel trim malfunction). However, do not assume the pump is bad just because of these codes – a vacuum leak or dirty MAF sensor can also cause them. Use a fuel pressure gauge to confirm.

Symptom six: The car dies immediately after starting. The pump might have enough pressure to get the engine running, but then pressure drops to zero. This is often accompanied by a loud whining noise that changes pitch. A healthy pump makes a quiet, steady hum. A dying pump whines loudly, then goes silent.

2. Why the 1999 Camry Fuel Pump Fails – Common Causes

Understanding why these pumps die will help you avoid making the same mistake twice. The 1999 Camry has a few design features that put extra stress on the fuel pump.

Cause one: Age and heat. The pump sits inside the fuel tank, submerged in gasoline. Gasoline acts as a coolant and lubricant for the pump. But over 20+ years, the gasoline deteriorates the internal seals and the commutator wears down. Every time you run the tank below a quarter full, the pump gets hotter because there is less fuel to absorb heat. Many owners habitually run their tank near empty, and that shortens pump life dramatically.

Cause two: Clogged fuel filter. The 1999 Camry has a replaceable fuel filter located under the car, near the driver’s side rear door. If you never changed it, the filter becomes restricted. The pump has to work harder to push fuel through the clogged filter, and that extra load burns out the motor. Toyota recommends changing the fuel filter every 30,000 miles. If you are on your original filter at 150,000 miles, you are asking for pump failure.

Cause three: Contaminated fuel. Water, rust, or dirt in the gas tank will chew up the pump’s internal bearings. Water comes from condensation in the tank (especially if the car sits for months) or from a gas station with bad underground tanks. Rust forms if the tank has any moisture inside. A rusty fuel tank will destroy a new pump within weeks. Always inspect the inside of your tank when you have the pump out.

Cause four: Electrical problems. The fuel pump relay or the circuit opening relay (which turns the pump on only when the engine is cranking or running) can fail. Also, the fuel pump resistor (mounted on the driver’s side strut tower) reduces pump speed at idle to lower noise. If that resistor fails open, the pump runs at full speed all the time and wears out faster. Or if it fails shorted, the pump may not run at all.

Cause five: Using the wrong replacement pump. Some aftermarket pumps are built with undersized motors or poor quality check valves. They might fit, but they cannot maintain the correct pressure (38–44 psi for the 2.2L engine, 40–46 psi for the 3.0L V6). Low pressure causes lean running, overheating, and eventually the new pump fails again in six months.

3. How to Diagnose a Bad Fuel Pump – Step by Step (No Guesswork)

You can confirm the pump is bad with simple tools. Do not throw parts at the problem. Follow this diagnostic order.

Step one: Listen for the prime. Have a helper turn the key to “ON” while you put your ear near the fuel filler cap or under the rear seat (the pump is under the rear seat, passenger side). You should hear a two second whir. If you hear nothing, go to step two. If you hear a loud screech or grinding, the pump is mechanically failing.

Step two: Check the fuel pump fuse and relay. Open the under hood fuse box (driver’s side, near the battery). Locate the “EFI” fuse (15A or 20A) and the “AM2” fuse (30A). Pull them out and look for a broken metal strip. Replace if blown. Then find the fuel pump relay – it is in the same fuse box, usually labeled “Fuel Pump” or “C/OPN” (circuit opening). Swap it with a known good relay of the same part number (e.g., the horn relay). If the pump now primes, the relay was bad.

Step three: Test for power at the pump connector. Remove the rear seat cushion (it just pulls up at the front edge). You will see a metal access plate held by four screws. Remove the plate. Unplug the electrical connector on top of the fuel pump. Set your multimeter to DC volts. Probe the black/white wire (ground) and the blue/red wire (power). Have a helper turn the key to “ON”. You should see 12 volts for two seconds. If you have power but no pump noise, the pump is dead. If no power, the problem is the relay, wiring, or engine computer.

Step four: Perform a fuel pressure test. This is the most accurate test. You need a fuel pressure gauge kit (rent from any auto parts store). Locate the fuel pressure test port on the fuel rail (the metal pipe that feeds the injectors). On the 2.2L engine, it is on the driver’s side of the intake manifold, with a black plastic cap. On the 3.0L V6, it is on the passenger side. Attach the gauge. Turn the key to “ON” but do not start. The pressure should jump to 38–44 psi (2.2L) or 40–46 psi (3.0L) and hold steady. If it never reaches pressure, or if it climbs very slowly, the pump is weak. Then start the engine. Pressure should stay within the same range. Remove the vacuum line from the fuel pressure regulator (on the fuel rail). Pressure should rise by about 5–10 psi. If not, the regulator may be bad, but that is rare.

Step five: Check for residual pressure. After turning the engine off, watch the gauge. Pressure should drop no more than 5 psi in 10 minutes. If it drops to zero immediately, the pump’s internal check valve is leaking. That causes long crank times. The only fix is a new pump.

4. Choosing the Right Replacement Fuel Pump for Your 1999 Camry

This decision makes the difference between a one afternoon job and a repeat failure next year. For the 1999 Toyota Camry, you have three options: OE (original equipment), OEM (same manufacturer as original but not in a Toyota box), or aftermarket. Here is what each means for your car.

Option one: Denso fuel pump. Denso is the original manufacturer for Toyota. The factory pump in your 1999 Camry was made by Denso. You can buy a Denso pump in a Denso box for about $80–$120. This is the best choice. It has the correct flow rate, pressure, and the rubber isolator that fits perfectly. The part number for the 2.2L (5S FE) is Denso 950 0106 or 950 0107 (different revisions). For the 3.0L V6 (1MZ FE), use Denso 950 0119. These are sold at RockAuto, Amazon, and most parts stores.

Option two: Aisin fuel pump. Aisin is another major Toyota supplier. Their pumps are excellent quality, often identical to Denso internally. Aisin part numbers: Aisin FPT 001 (fits both engines, but check compatibility). Slightly harder to find, but a very safe choice.

Option three: Delphi or Bosch. Delphi (part number FE0519 for 2.2L, FE0520 for 3.0L) and Bosch (part number 69317) are good aftermarket brands. They are not original equipment, but they have a solid reputation. Expect to pay $70–$100. These are acceptable if Denso is out of stock.

Option four: Cheap no name pumps from eBay or Amazon for $20–$30. Avoid these at all costs. They are made with undersized motors, weak check valves, and plastic parts that crack. I have seen these pumps fail in under 1,000 miles. One customer installed a $25 pump and the car would not start the next day because the internal strainer clogged with debris from the pump’s own worn brushes. You will spend more time and money redoing the job.

Do you need the entire fuel pump module or just the pump itself? The 1999 Camry uses a module that includes the pump, a fuel level sender, a strainer (sock filter), and a pressure regulator (on some models). You can buy just the bare pump and reuse your old bracket. But the bracket’s rubber hoses can harden and crack. For most DIYers, buying a complete module (assembly) is easier and safer. A complete Denso assembly includes a new strainer, new rubber hoses, and a new gasket for the tank opening. The part number for the complete assembly (2.2L) is Denso 950 0106 (includes strainer). For the 3.0L, Denso 950 0119. Expect to pay $150–$200.

Also buy these parts at the same time: 
A new fuel pump strainer (sock) – even if you buy a bare pump, replace the strainer. Part number for 2.2L: Denso 952 0005. For 3.0L: Denso 952 0007.
A new fuel tank gasket (seal) – the large O ring that seals the pump to the tank. It hardens over time and will leak fuel vapor (and raw fuel if you overfill). Part number: 77169 33010 (Toyota) or aftermarket like Fel Pro 77218.
A new fuel filter (under the car) – do this while the system is open. Part number: Toyota 23300 62030 or Wix 33246.

5. Tools and Supplies You Will Need for the Fuel Pump Replacement

Gather everything before you start. This job is not hard, but running to the store halfway through with a tank full of gas is miserable.

Tools:
Flathead screwdriver (to pry off the access cover)
Phillips head screwdriver (for the access plate screws)
10mm socket and ratchet (for the fuel pump mounting bolts)
14mm wrench (to disconnect the fuel lines – optional)
Pliers (to pinch off the fuel hose or remove spring clamps)
Trim removal tool (or a plastic putty knife – helps lift the rear seat)
Jack and jack stands (to raise the rear of the car slightly – not always required but helpful)
Drain pan (to catch fuel spillage)
Shop towels (lots of them)
Safety glasses and gloves (fuel is nasty on skin)
Fire extinguisher (Class B for flammable liquids) – keep it within reach. Seriously.

Supplies:
New fuel pump (complete assembly or bare pump + strainer + gasket)
New fuel filter (recommended)
New fuel hose (3/8” ID fuel injection hose, about 6 inches) – if your old rubber hose inside the tank looks cracked
Dielectric grease (for electrical connector)
Penetrating oil (like PB Blaster – for the fuel filter fittings)
Hand cleaner and a change of clothes

Optional but helpful:
Fuel pressure gauge (to verify your work)
Hose clamp pliers (for the spring clamps on the fuel lines)
A helper to hand you tools and hold a flashlight

6. Step by Step Replacement Procedure – 1999 Toyota Camry

Read all steps before you begin. Allow 2–3 hours for your first time. Work in a well ventilated area away from any open flame, pilot lights, or sparks. No smoking.

Step 1: Relieve fuel system pressure. This is critical to prevent spraying gasoline when you disconnect the lines. Locate the fuel pump fuse (EFI) in the under hood fuse box. Pull it out. Start the engine and let it run until it dies (about 10–15 seconds). Crank the engine once more to confirm pressure is gone. Then put the fuse back in. Or you can disconnect the fuel pump electrical connector under the rear seat and then crank the engine. Either method works.

Step 2: Disconnect the negative battery terminal. Use a 10mm wrench. Tuck the cable away so it cannot touch the terminal. This eliminates any spark risk while you work on the fuel system.

Step 3: Remove the rear seat cushion. Open both rear doors. Locate the two clips under the front edge of the seat cushion – one on the driver’s side, one on the passenger’s side. Grasp the seat firmly and pull straight up. It will pop loose. Then pull the seat forward and out of the car. You will now see a metal access plate on the passenger side (right side) of the floor pan.

Step 4: Remove the access plate. It is held by four Phillips screws. Use a screwdriver or a ratchet with a Phillips bit. Some screws may be rusted – spray penetrating oil and tap gently with a hammer. Remove the screws and set aside the plate. You will now see the top of the fuel pump module, with electrical wires and two fuel lines (one supply, one return – or just one line if your model has a returnless system; most 1999 Camrys have a return line).

Step 5: Clean the area. Use a shop vacuum or compressed air to remove all dirt and debris from around the pump’s top ring. You do not want any grit falling into the fuel tank when you open it. This is a very important step.

Step 6: Disconnect the electrical connector and fuel lines. First, unplug the electrical connector by squeezing the tab. Then, for the fuel lines: On a 1999 Camry, the supply line is the larger diameter line (usually 5/16” or 3/8”). Use a line disconnect tool (a small plastic scissor tool) or carefully use a flathead screwdriver to pry off the spring clamp and then twist the hose while pulling. Have a rag ready because a small amount of fuel will dribble out. If your car has threaded fittings, use a 14mm wrench. Do not force anything – if it does not come apart, spray more penetrating oil.

Step 7: Remove the lock ring. The pump is held in the tank by a large metal ring that threads into the tank. Some 1999 Camrys have a plastic nut, but most have a steel lock ring with notches. Use a brass punch and a hammer to tap the lock ring counterclockwise. Better yet, buy or rent a universal fuel pump lock ring tool (about $20 from Amazon or Harbor Freight). Tap gently – the ring can deform if you hit too hard. Once it is loose, unscrew it by hand.

Step 8: Lift out the old fuel pump module. Gently rock the pump side to side while pulling upward. The fuel level float arm will swing out – guide it carefully so you do not bend it. Once the pump is free, tilt it to drain any remaining fuel back into the tank. Set the old pump on a rag. Look inside the fuel tank. Is there rust, dirt, or water? If the tank is dirty, you need to clean it or replace it. Use a flashlight and look for any orange/brown flakes. If you see rust, stop and call a professional – a new pump will fail quickly in a rusty tank.

Step 9: Transfer parts from the old pump to the new one (if you bought a bare pump). If you bought a complete assembly, skip to step 10. If you have a bare pump, you need to remove the pump from the bracket. The bracket holds the pump, the fuel level sender, and the strainer. Remove the strainer (pull it off). Disconnect the electrical wires (note which terminal is positive and negative). Remove the small rubber hose that connects the pump outlet to the bracket’s metal tube. Install the new pump in reverse order. Use new rubber hose and new hose clamps – do not reuse the old hose. Add a new strainer. Then reinstall the pump onto the bracket.

Step 10: Install the new pump assembly. Lower the new pump into the tank. Make sure the fuel level float moves freely and does not hit the sides of the tank. The pump should sit flat on the tank’s bottom. The new gasket (large O ring) should be placed on the tank opening before you put the pump in. Most new pumps come with a gasket. If not, buy one separately. Position the pump so its orientation matches the old one – the electrical connector and fuel lines will only reach one way.

Step 11: Tighten the lock ring. Screw the lock ring on by hand clockwise until it is snug. Then use the punch and hammer to tap it tight. Do not overtighten – you only need to compress the gasket. About 1/8 turn past hand tight is enough. If you use a lock ring tool, tighten to about 30 foot pounds. If the ring leaks fuel later, you can snug it more.

Step 12: Reconnect the fuel lines and electrical connector. Push the fuel lines onto the nipples until you feel them click (if using quick connects). For spring clamps, reposition the clamp so it is on the rubber hose over the barb. Double check that both lines are secure. Plug in the electrical connector. Apply a dab of dielectric grease to the connector terminals to prevent corrosion.

Step 13: Reinstall the access plate and rear seat. Put the metal plate back with the four screws. Then snap the rear seat cushion into place – align the two metal clips and push down firmly until you hear them click.

Step 14: Reconnect the battery and test for leaks. Connect the negative battery terminal. Turn the key to “ON” (do not start) and listen for the pump to prime. You should hear the whir for two seconds. Then turn the key off. Get under the car (or look through the access plate opening) and sniff for fuel. Check the top of the pump for any wetness. If you see or smell fuel, you have a leak. Tighten the lock ring or reconnect the fuel lines.

Step 15: Start the engine. It may take a few extra cranks because the system needs to build pressure. Once it starts, let it idle for five minutes. Watch for leaks. Then drive the car gently around the block. Listen for any unusual noises from the pump (a constant loud whine means the pump is struggling – possible clogged strainer or wrong pump). The new pump should be barely audible from inside the car.

Step 16: Replace the external fuel filter (strongly recommended). This is a separate job, but do it now. The filter is located under the car, on the driver’s side frame rail, just ahead of the rear wheel. You will need to relieve pressure again (pull the fuel pump fuse and run the engine until it dies). Then use a 14mm and 17mm wrench to unscrew the filter. Watch for spraying fuel. Install the new filter with new washers (copper or nylon). Tighten securely but do not strip the threads. Start the engine and check for leaks.

7. Safety Warnings and Common Mistakes to Avoid

This job involves gasoline, electricity, and confined spaces. A small mistake can cause a fire or injury. Follow these rules strictly.

Mistake one: Not relieving fuel pressure. Gasoline under pressure will spray into your face when you disconnect the lines. It burns your eyes and skin. Always pull the fuel pump fuse and run the engine dry before starting.

Mistake two: Using a non ventilated space. Gasoline vapors are heavier than air and sink to the floor. They can be ignited by a water heater pilot light, a furnace, or even a static spark from your clothes. Do this job in a garage with the door fully open, or better yet, outside on a driveway.

Mistake three: Dropping the old pump into the tank. The old pump can fall off the bracket if you are not careful. Tie a string to it or use a magnetic pickup tool. If it falls into a full tank, you now have to remove the tank to retrieve it.

Mistake four: Bending the fuel level sender arm. That thin metal arm with a float on the end is very delicate. If you bend it, your gas gauge will read incorrectly (always empty or always full). When removing or installing the pump, guide the arm out slowly. Test the float movement before locking the pump in place.

Mistake five: Using Teflon tape or sealant on fuel line threads. Do not do this. Fuel injection fittings seal with a flare or O ring. Teflon tape can shred and clog the injectors. Only use the factory washers or O rings.

Mistake six: Forgetting the new strainer. The strainer is a mesh sock that filters large particles before they enter the pump. If you reuse a clogged or old strainer, the new pump will overheat and die. Always install a new strainer.

Mistake seven: Overtightening the lock ring. You can crack the plastic fuel tank (if your Camry has the plastic tank, most 1999 models have a metal tank) or strip the threads. Hand tight plus a light tap is sufficient. If you see fuel weeping after the job, tighten a little more – do not go crazy.

Mistake eight: Installing the pump backwards. The pump has an arrow or a marking showing the direction of fuel flow. If you install it reversed, it will not pump. Some aftermarket pumps have the electrical terminals reversed – verify with a multimeter. The correct polarity: the blue/red wire is positive, black/white is ground.

8. After the Repair – What to Expect and How to Extend Pump Life

Once you have a new fuel pump, you want it to last another 150,000 miles. Follow these simple habits.

Keep your tank at least a quarter full. This is the number one rule. A submerged pump runs cool. A pump in an empty tank overheats. Make it a habit to refill when the gauge hits a quarter tank. Do not wait for the low fuel light.

Change the fuel filter every 30,000 miles. A clogged filter adds strain. The filter is cheap ($10–$15) and takes 20 minutes to replace. Mark your odometer or set a reminder.

Use top tier gasoline. Gasoline from brands like Shell, Chevron, Mobil, and Costco contains detergents that keep the inside of the pump and injectors clean. Avoid no name discount stations that might have water or sediment.

If the car sits for months, add a fuel stabilizer. Ethanol blended fuel attracts water. Over six months of storage, water can rust the inside of the tank and ruin the pump. Use Sta Bil or similar before parking long term.

Listen to your pump. Once a month, turn the key to “ON” without starting and listen from the rear seat. A healthy pump makes a quiet, steady buzz. If you hear a high pitched whine that changes pitch, or if the pump suddenly gets louder, the new pump may be failing. Check the fuel filter first.

Do not ignore the check engine light. A lean code (P0171) can be caused by a vacuum leak, but it can also be the first sign of a weak pump. If you see that code, have the fuel pressure tested. Catching a failing pump early gives you time to plan the repair instead of being stranded.

9. Cost Breakdown – Parts and Labor

If you do the job yourself, the cost is reasonable. If you pay a shop, it will be more expensive because of the labor time (book time is 1.5 to 2.5 hours).

DIY parts cost (using Denso complete assembly):
Denso fuel pump module: $150–$200
New fuel tank gasket: $5–$10 (often included with the pump)
New fuel filter (external): $15
New strainer (if not included): $8
Total: $178–$233

DIY parts cost (using bare Denso pump):
Denso bare pump: $80–$120
Strainer: $8
Gasket: $5–$10
Fuel injection hose (1 foot): $5
Total: $98–$143

Shop labor estimate: Most independent mechanics charge $100–$150 per hour. With 2 hours labor, plus parts markup (they will charge you $250 for a pump that costs them $100), the total job runs $400–$600. Dealerships charge $150–$200 per hour and use genuine Toyota parts (which are Denso with a Toyota logo, costing $300+). A dealer fuel pump replacement can easily exceed $800.

Is it worth paying a shop? Only if you have no mechanical experience, no tools, or physical limitations that prevent you from removing the rear seat and working inside the car. This job is genuinely DIY friendly for a beginner – there are no engine hoists or transmission jacks required. The only tricky parts are disconnecting the fuel lines and removing the lock ring. Watch a few YouTube videos specifically for the 1999 Camry. Many first timers complete it in an afternoon.

10. Frequently Asked Questions (Specific to the 1999 Camry)

Q: Does a 1999 Toyota Camry have a fuel pump relay or a circuit opening relay?
A: It has both. The fuel pump relay (also called the EFI main relay) is in the under hood fuse box. The circuit opening relay (C/OPN) is located behind the driver’s side kick panel (near the parking brake pedal) or inside the fuse box under the dashboard. The C/OPN relay only allows the pump to run when the engine is cranking or running – it receives a signal from the airflow meter. If your car cranks but never starts, and the pump primes for only a split second instead of two seconds, suspect the C/OPN relay.

Q: Can I access the fuel pump without dropping the fuel tank?
A: Yes, on the 1999 Camry, the pump is accessed through the interior under the rear seat. You never need to drop the tank. This is why the job is so popular with DIYers.

Q: What fuel pressure should I have at idle for the 2.2L engine?
A: 38–44 psi. For the 3.0L V6, 40–46 psi. If your new pump gives pressure lower than that, check for a clogged filter, a pinched fuel line, or the wrong pump.

Q: My new pump is noisy – is that normal?
A: A slight hum is normal. A loud whine or grinding sound is not. First, make sure you have at least half a tank of gas (air in the system can cause noise). Second, check that the strainer is not clogged. Third, confirm you used a Denso or quality brand. Cheap pumps are notoriously noisy. If the noise persists after driving for 50 miles, replace the pump again – it will fail soon.

Q: The car starts but runs rough after replacing the pump. What went wrong?
A: You may have introduced air into the fuel lines. Drive the car gently for 5–10 minutes; the air will purge. If it still runs rough, check for a fuel leak (smell of gas) or a kinked rubber hose inside the tank. Also verify that you reconnected the correct fuel line (supply vs. return). Reversing them will cause no start or very rough running.

Q: Should I replace the fuel pump if the car has 250,000 miles and the original pump still works?
A: Yes, consider it preventative maintenance. The pump is beyond its expected life. It will fail without warning, usually at the worst time (in bad weather, late at night, far from home). Buy a Denso pump and keep it in your trunk along with the tools. Or replace it proactively during a weekend. The peace of mind is worth the $150.

Q: The fuel pump runs continuously even with the key off – what is wrong?
A: The fuel pump relay is stuck closed, or there is a short in the wiring. This is dangerous because the pump can overheat and the injectors may leak fuel into the engine. Disconnect the battery immediately. Replace the relay. If that does not fix it, you have a short between the relay and the pump – trace the wiring.

Q: After replacing the pump, my gas gauge reads empty all the time.
A: You either forgot to plug in the electrical connector for the fuel level sender (the sender is part of the pump module but has a separate wire plug) or you bent the float arm. Remove the access plate and check the connector. If the arm is bent, you will need to remove the pump and carefully straighten the arm so the float moves freely from the bottom to the top of the tank.

Q: Can I use a fuel pump from a different year Camry?
A: No. The 1997–2001 Camrys have similar pumps, but the electrical connectors, fuel line fittings, and pressure specifications vary. Always buy a pump explicitly listed for a 1999 Toyota Camry with your engine size. Using the wrong pump can cause no start, poor drivability, or a fire.

Q: What is the part number for the genuine Toyota fuel pump?
A: For the 1999 Camry 2.2L, Toyota part number is 23220 74100 or 23220 74101. For the 3.0L V6, 23220 62030. These are rebranded Denso pumps. You will pay $250–$350 at a Toyota dealer. The aftermarket Denso equivalent (950 0106 for 2.2L) is identical except for the box.

11. Real World Experience from a 1999 Camry Owner (Case Study)

I want to share a story from a customer named Mark. He owned a 1999 Camry LE with the 2.2L engine and 178,000 miles. The car started fine in the morning, but after driving for 30 minutes on the highway, it would lose power and die. He would wait 15 minutes, and it would start again. He replaced the spark plugs, ignition coil, and MAF sensor – none of it helped. He brought the car to me.

I performed a fuel pressure test. Cold engine: 42 psi, perfect. Then I drove the car with the gauge taped to the windshield. After 20 minutes of driving, the pressure slowly dropped to 20 psi, then 10 psi, then the engine stalled. That is a classic heat soak failure of the fuel pump. The pump’s internal windings had high resistance when hot.

We replaced the pump with a Denso complete assembly, a new filter, and a new gasket. Total parts cost $210. Mark did the work himself in his garage in three hours. After the repair, the car drove perfectly. He sold the car two years later with 215,000 miles and the pump was still quiet and strong. That is the result you should expect.

Another cautionary tale: A different customer bought a $30 “eBay special” pump for his 1999 Camry V6. He installed it, and the car started but had no power going uphill. Fuel pressure was only 28 psi. The cheap pump could not meet the flow demand of the V6. He had to redo the job with a Denso pump. Total cost: $30 wasted plus his time. Do not make that error.

12. Summary – Your Action Plan

You have read the facts. Now here is what you do if your 1999 Toyota Camry needs a fuel pump.

1. Confirm the diagnosis. Listen for the prime, check fuses and relays, and test fuel pressure. Do not skip this.
2. Buy a Denso or Aisin pump. Get the complete assembly if you can afford it. Also buy a new gasket and a new external fuel filter.
3. Relieve pressure and disconnect the battery. Safety first.
4. Remove the rear seat and access plate. The pump is right there.
5. Clean the area, disconnect lines, remove the lock ring, and pull the pump.
6. Inspect the fuel tank. If you see rust, stop and address it.
7. Install the new pump with a new strainer and gasket. Transfer any needed parts from the old pump.
8. Reassemble, reconnect the battery, and test for leaks.
9. Replace the external fuel filter.
10. Keep your tank above a quarter full from now on.

A failed fuel pump is frustrating because it leaves you stranded. But on the 1999 Camry, the repair is straightforward, affordable, and well within the skills of a careful DIYer. Take your time, follow the steps, and use quality parts. Your Camry will reward you with many more miles of dependable service.

Final note: If you are not comfortable working with gasoline, or if you smell fuel inside the car after the repair, stop and have a professional inspect your work. A fuel leak is a serious fire hazard. That said, thousands of Camry owners have successfully replaced their own fuel pumps using guides like this one. You can be one of them.