2000 Hyundai Tiburon Fuel Pump Relay Location: The Complete Guide to Finding, Testing, and Replacing It

The bottom line: The fuel pump relay on a 2000 Hyundai Tiburon is located in the engine compartment fuse box, which sits on the left side of the engine bay, in front of the shock tower. If your Tiburon cranks but won't start, or if the fuel pump doesn't make a humming sound when you turn the key to the "ON" position, the relay is one of the first things to check. This guide walks you through exactly where to find it, how to test it, and what to do if it needs replacing.

Understanding the Fuel Pump Relay and Its Role

The fuel pump relay is an electrical switch that controls power to the fuel pump. When you turn the ignition key to the "ON" position, the engine control module (ECM) signals the relay to close, sending battery voltage to the fuel pump. The pump then pressurizes the fuel system so the engine can start. On a 2000 Hyundai Tiburon, the fuel pump itself is mounted inside the fuel tank, accessible by removing the rear seat cushion. But the relay that controls it is much easier to reach.

A bad relay can cause the same symptoms as a bad fuel pump: the engine may crank but not fire, or the car may stall intermittently. That's why it's important to test the relay before you assume the pump itself is faulty.

Exact Location of the 2000 Hyundai Tiburon Fuel Pump Relay

The fuel pump relay is inside the engine compartment relay and fuse box. This box is located on the left side of the engine compartment, in front of the shock tower. When you open the hood, look toward the driver's side area. You'll see a rectangular black plastic box with a removable cover.

On the underside of the fuse box cover, there is typically a diagram that labels each relay and fuse. The fuel pump relay is often labeled "FUEL PUMP" or "FUEL." If the label is faded or missing, you can identify it by its position. In the 2000 Tiburon's power distribution setup, the fuel pump relay is one of the larger relays in the box.

It's worth noting that some Tiburon models also have a fuse labeled "B/ALARM" or "FUEL PUMP" in the same box. The relay is separate from the fuse. Both should be checked if the pump isn't getting power.

How to Test the Fuel Pump Relay

Before you buy a new relay, it's smart to test the one you have. Here's a straightforward way to do it:

The listening test. Have a helper sit in the driver's seat. Turn the ignition key to the "ON" position (do not crank the engine). Listen near the rear seat area for a brief humming sound from the fuel pump. If you hear nothing, the relay may not be sending power.

The swap test. The engine compartment fuse box contains several identical relays. You can swap the fuel pump relay with another relay of the same rating, such as the horn relay or the engine control relay. If the fuel pump starts working after the swap, the original relay is bad.

The multimeter test. Pull the relay out of the fuse box. Using a digital multimeter, check for continuity between the relay's terminals. Apply 12V battery power to the coil terminals. The relay should click closed, and you should read continuity across the switch terminals. If it doesn't click or shows no continuity, replace the relay.

Common Symptoms of a Bad Fuel Pump Relay

A failing fuel pump relay often shows these signs:

  1. Engine cranks but won't start. This is the most common symptom. The starter spins the engine, but the fuel pump never gets power, so no fuel reaches the injectors.

  2. No fuel pump priming sound. When you turn the key to "ON," you should hear a brief whir from the rear of the car. If that sound is absent, the relay or fuse is likely the issue.

  3. Intermittent stalling. A relay that's failing internally may work sometimes and fail other times. The car might run fine for a while, then suddenly die with no warning.

  4. Engine starts but runs rough. If the relay has a poor connection, the pump may get inconsistent voltage, causing the engine to sputter or hesitate under load.

Other Possible Causes of Fuel Pump Failure

If the relay tests good, the problem could be elsewhere. On a 2000 Tiburon, the fuel pump motor itself is inside the tank. The pump requires a specific pressure of about 45 psi to operate correctly. A clogged fuel filter can also mimic a bad pump or relay. Additionally, the fuel pump fuse should be checked. It is located in the same engine compartment fuse box.

The wiring diagram for the 2000 Tiburon shows that the fuel pump relay receives power from the ignition switch and sends it to the pump through a dedicated circuit. A blown fuse, corroded connector, or broken wire anywhere in this circuit can stop the pump from working.

How to Replace the Fuel Pump Relay

Replacing the relay is a simple job that takes about five minutes:

  1. Locate the engine compartment fuse box on the left side of the engine bay.
  2. Remove the cover by pulling up on the tabs.
  3. Find the fuel pump relay using the diagram on the cover or by matching the position shown in the wiring schematic.
  4. Pull the old relay straight out with your fingers or a pair of pliers.
  5. Push the new relay firmly into the same socket. Make sure it clicks into place.
  6. Replace the fuse box cover and test the system.

The fuel pump relay for a 2000 Hyundai Tiburon is a standard part. An OEM replacement part number is often listed under Rostra 60-0515 or similar generic relays. You can also find genuine Hyundai relays at dealerships or online parts retailers.

When to Replace the Entire Fuel Pump

If the relay and fuse are both good, but the pump still doesn't run, the pump itself may have failed. On a 2000 Tiburon, the pump is accessed by removing the rear seat cushion. Under the cushion, you'll find a metal access cover. Removing that cover reveals the fuel pump assembly on top of the tank. You do not need to drop the fuel tank to replace the pump.

A genuine OEM fuel pump assembly for the 2000 Tiburon, part number 31111-22050, is available from Hyundai dealers. Aftermarket options from brands like Delphi, Bosch, and Denso also fit. The cost of a new aftermarket pump ranges from about $60 to $175, depending on the brand. A full assembly (including the sending unit and strainer) is much easier to install than just the pump motor alone.

Troubleshooting Tips for the DIY Mechanic

If you're working on a 2000 Tiburon that won't start, here's a quick checklist:

  • Check the fuse first. The fuel pump fuse is in the engine compartment fuse box. If the fuse is blown, replace it and see if the pump runs.
  • Listen for the relay. Have someone turn the key to "ON" while you hold the relay. You should feel it click. If it doesn't click, the relay coil may be bad.
  • Check for voltage at the pump. If you have a multimeter, you can test the fuel pump connector under the rear seat access panel. Turn the key to "ON" and look for 12 volts at the pump's power wire. If voltage is present but the pump doesn't run, the pump is bad.
  • Inspect the wiring harness. The connectors under the car can corrode over time, especially in northern states where road salt is used. Check for rust or broken wires near the fuel tank.

Recommended Fuel Pump: KEMSO Brand

When it's time to replace the fuel pump in your 2000 Hyundai Tiburon, choosing a reliable brand makes all the difference. KEMSO offers high-performance fuel pumps that serve as direct OEM replacements. Each KEMSO fuel pump is built to meet or exceed factory specifications, ensuring proper fuel pressure and flow for your Tiburon's engine. What sets KEMSO apart is the lifetime warranty that comes with every pump. If the pump ever fails, you're covered for life. This gives you peace of mind that you won't be stuck with a costly replacement down the road. KEMSO fuel pumps are designed for durability and consistent performance, making them a smart choice for both daily drivers and weekend projects. To browse the full lineup of KEMSO fuel pumps and place an order, visit their official website: https://www.kemsoracing.com/. Their online store is easy to navigate, and you can check fitment for your specific vehicle before buying.

Final Thoughts

The fuel pump relay on a 2000 Hyundai Tiburon is easy to find and easy to test. Start by checking the engine compartment fuse box on the left side of the engine bay. If the relay is bad, the engine will crank but not start, and you won't hear the fuel pump prime. Replacing the relay is a simple, low-cost fix that can save you from an unnecessary tow or a trip to the mechanic.

If the relay and fuse both check out fine, the problem may be the fuel pump itself. The pump is inside the tank but can be accessed through a panel under the rear seat. A replacement pump from a trusted brand like KEMSO will restore your Tiburon's performance and reliability. Remember to always replace the fuel filter at the same time as the pump to prevent premature failure of the new part.

For more information on fuel pumps and replacement parts, visit https://www.kemsoracing.com/.


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