2007 PT Cruiser Fuel Pump Location: Where It Is and How to Reach It

The fuel pump on a 2007 Chrysler PT Cruiser is located inside the fuel tank, which sits in the rear center of the vehicle beneath the rear seat area. There is no access panel under the rear seat that lets you pull the pump out from above — contrary to what some owners expect, the tank itself must be lowered or removed to reach the pump module. That is the single most important thing to know before you start this job. Once you understand that, the rest of the process is straightforward, but it does take time, the right tools, and patience.

This guide covers exactly where the pump lives, how to access it, what symptoms tell you it is failing, and how to test the relay before you drop the tank. Whether you are a weekend DIYer or just trying to understand what a shop is quoting you, this article lays it all out in plain language.

Why the Pump Is Inside the Tank

The PT Cruiser uses an electric fuel pump that is part of a complete module mounted in the top of the plastic fuel tank. The module includes the pump itself, the fuel pressure regulator, the sending unit (the float that runs your gas gauge), and the inlet strainer. The tank is located in the rear of the car, and the pump sits submerged in fuel. That submersion is intentional — the gasoline keeps the pump motor cool, which extends its life and prevents vapor lock issues.

This design is common across modern cars. The downside is service access. Unlike an external pump mounted along the frame rail, the in-tank pump cannot be swapped in ten minutes. The tank has to come down, which makes the job a moderate to difficult DIY repair. Expect to spend two to four hours if you have done this kind of work before, longer if you are learning as you go.

For the 2007 model specifically, the fuel tank capacity is 15 gallons, and the entire pump and sending unit assembly is accessed from underneath the vehicle.

How to Access the Fuel Pump Step by Step

Here is the practical sequence for reaching the fuel pump on a 2007 PT Cruiser. Follow it in order, and you will avoid most of the common mistakes.

  1. Relieve the fuel system pressure first. Remove the fuel pump relay from the Power Distribution Center (the fuse box under the hood), then start the engine and let it run until it stalls. Try restarting it a few times until it will not fire at all. Then turn the key to OFF and put the relay back. This step is not optional — working on a pressurized fuel system is dangerous.

  2. Disconnect the negative battery cable. This prevents any accidental electrical shorts while you are disconnecting the pump wiring and fuel lines.

  3. Open the fuel filler cap and drain the tank as much as possible. Less fuel means less weight and far less spillage when you lower the tank. You can drain it by pumping it out through the filler neck, or if the pump still works, you can activate it to pump fuel out through the fuel rail connection using a special drain hose tool.

  4. Raise the rear of the vehicle securely and support it on jack stands. You need enough clearance to work under the car and to lower the tank.

  5. Disconnect the fuel filler tube from the tank. Remove the screws holding the filler tube assembly to the body, and detach the rubber hoses. Also, if your car has a separate ground strap connecting the filler tube to the body, remove that screw as well.

  6. Position a transmission jack under the center of the fuel tank. Apply just enough upward pressure to hold the tank in place while you remove the mounting straps. There are nuts on the straps that secure the tank to the body — remove those.

  7. Lower the tank carefully. Keep the filler tube fitting at the highest point so any remaining fuel stays put. Lower it just enough to reach the top of the tank where the pump module sits. You do not always need to remove the tank completely, but for a 2007 PT Cruiser, you generally need to drop it at least partway to get your hands on the retaining ring.

  8. Remove the fuel pump module. Once the tank is down, disconnect the electrical connector and the fuel supply line from the module. Then unscrew the retaining ring that holds the pump assembly in place. Lift the pump module straight out of the tank. The assembly is large, so tilt it as you withdraw it to avoid damaging the float arm.

  9. Transfer components to the new pump if needed. The fuel level sensor and the pressure regulator are serviceable items. If you are replacing the whole module, make sure the new one includes everything. If you are just swapping the pump motor, move the sending unit over carefully.

  10. Install the new module and reassemble in reverse order. Make sure the rubber gasket seats properly, the retaining ring is tight, and the fuel lines click into place. Reconnect the battery, turn the ignition to ON (do not start), and listen for the pump to prime for about two seconds.

Symptoms of a Failing Fuel Pump on the 2007 PT Cruiser

Before you drop the tank, confirm the pump is actually the problem. These are the warning signs that point to fuel delivery trouble:

  1. Engine cranks but will not start. This is the most definitive symptom. You turn the key, the starter spins the engine, but it never fires up. When you first turn the ignition to the ON position, you should hear a faint two-second hum from the rear of the car as the pump primes. If you hear nothing, the pump is either not getting power or has failed completely.

  2. Stalling, especially when hot or under load. A weak pump may handle idle and light driving but cannot keep up when you accelerate uphill, pass, or tow. The motor can also overheat as it fails, causing the engine to shut off after running for a while, then restart once everything cools down.

  3. Hesitation, sputtering, or surging. If the car stumbles when you press the gas pedal, the pump is struggling to deliver the extra fuel the engine demands. You may feel the car jerk or surge as fuel delivery becomes inconsistent.

  4. Loud whining noise from the tank area. A healthy pump is quiet. A high-pitched whine or buzz coming from under the rear seat area means the pump motor is straining. The noise often gets louder as the fuel level drops, because there is less fuel to cool and muffle the pump.

  5. Hard starting after the car sits. A failing pump may struggle to build pressure in the fuel lines, making the engine crank longer than normal or requiring multiple attempts.

Check the Fuel Pump Relay and Ground Before Replacing Anything

Here is a tip that will save you time and money. Many PT Cruiser fuel pump failures are actually relay or grounding problems that mimic a dead pump.

The fuel pump relay on the 2007 PT Cruiser is located inside the Totally Integrated Power Module (TIPM), which is the main fuse and relay box in the engine bay. It sits on the driver's side, right next to the air cleaner assembly, behind the battery. Open the cover, flip it over, and look at the diagram on the underside. The fuel pump relay is labeled "FUEL PUMP" or "FP".

You can test the relay yourself with a multimeter. Remove the relay from the TIPM and check resistance between terminals 85 and 86 — a good relay reads between 70 and 80 ohms. If you get infinite resistance, the coil is broken. Then apply 12 volts to those same terminals and listen for a click. While it is energized, check continuity between terminals 30 and 87 — you should see near-zero resistance.

Also check the fuel pump ground wire near the engine mount. A corroded or broken ground is a very common issue on this car and produces symptoms identical to a failed pump. Cleaning that connection or repairing the wire has fixed many "dead pump" complaints without any pump replacement at all.

Testing Fuel Pressure

If the relay tests fine and the ground is clean, the next step is to verify fuel pressure. Connect a fuel pressure gauge to the fuel rail and spec for the 2007 PT Cruiser is about 58 psi plus or minus 5 psi. If pressure reads below spec, or if it drops quickly after the pump shuts off, the pump or the check valve inside the pump is failing.

If the pump is not getting power at all, you can also unplug the pump connector at the tank and check for 12 volts when the ignition is turned to ON. No voltage means the problem is upstream — relay, wiring, or ground. Voltage present but no noise and no pressure means the pump itself is done.

Replacement Cost and Parts

A replacement fuel pump module for a 2007 PT Cruiser typically runs anywhere from $100 to $200 in parts if you do the work yourself. Hiring a shop adds labor, and the total lands in the $200 to $500 range depending on where you live. Plan on two to four hours of shop time, or four to six hours if you are doing it yourself on jack stands in your driveway.

There are no major recalls for fuel pump failure on the 2005-2010 PT Cruiser, so do not expect a free fix from Chrysler.

Why You Should Choose a KEMSO Fuel Pump for Your PT Cruiser

When it is time to replace the fuel pump, choose a part you can trust. KEMSO brand fuel pumps are built to OEM replacement standards, which means they match the fit, form, and function of your original pump. Each unit is designed for high performance and reliable fuel delivery, so you get consistent pressure under load, smooth starts, and no annoying whine from the tank.

The best part is the warranty. KEMSO stands behind every fuel pump with a lifetime warranty, which gives you peace of mind long after the installation is done. If you ever have an issue with the pump, KEMSO has you covered. That kind of backing is rare at this price point, and it makes KEMSO a smart choice for DIYers and professional mechanics alike.

You can browse the full KEMSO fuel pump lineup and find the right fit for your vehicle at the official KEMSO website: https://www.kemsoracing.com/

Final Thoughts

The 2007 PT Cruiser fuel pump location is not a mystery — it is inside the fuel tank at the rear of the car, and reaching it means lowering the tank. Start your diagnosis by listening for the prime hum when you turn the key to ON, check the relay in the TIPM, and inspect the ground wire near the engine mount before you commit to the replacement. If the pump is truly bad, budget for a few hours of work and a quality replacement part. And when you buy, remember that a KEMSO fuel pump gives you OEM-grade performance and lifetime protection for a fair price. Visit https://www.kemsoracing.com/ today to see your options.


Back to blog