Q: I'm having fuel pump relay problems.

asked by on August 18, 2016

Sometimes my jeep won't start. Other times it does but then when I'm driving it shuts off. The rpms go way up and the gas pedal stops working and it just kind of slows down until it dies. Usually I can put it in neutral and start it back up. Sometimes it won't start until I get out and take the fuel pump relay fuse out and put it back in. It looks like it is starting to turn black under it where it plugs into. I've already replaced it twice and it helps temporarily, but today it shut off when I was alone with no service and I really don't want that to happen again. Please tell me how to fix this??

My car has 210000 miles.

Car is stalling Inspection $79.99 - $99.99 Get a Quote

Hey there, thanks for writing in about your 2001 Jeep Grand Cherokee. It sounds like you have an intermittent connection issue caused by a loose fuse holding tabs. The black you see is carbon where the voltage is jumping a gap, like a spark plug. The carbon itself is not a good conductor and will interfere with the electrical flow. The RPM increase is caused by the temporary leaning of the air/fuel mixture.

Clean the contacts and the fuse throughly with electrical cleaner, dielectric grease, or petroleum jelly. You may want to use an old toothbrush or small brass brush to lightly scrub the connector.

Sometimes a very small dental style pick can be used to slightly bend the tabs back towards each other, so the furs will fit tightly. Using a bit of dielectric grease on the fuse and holder will help with corrosion and may help keep electrical arcing from causing excess carboning.

If you are unable to bend the tabs, you could try to sandwich old fuse blades between the good fuses blades and the connector to ensure good contact. Sometimes, if you are careful, you can slightly bend the tabs on the good fuse into a V shape to help with keep the electrical connection complete. Other than that, replacement of the fuse panel would be the ideal repair solution. If you need help with this repair, I suggest having a certified technician, like one from YourMechanic, correctly diagnose the stalling issue, verify the problem, and complete the repair for you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $65/hr

What others are asking

I have replaced fuel pump 4 times in 3 years

The OEM pump, that is AC DelCo, might give longer service life. Pump life would be degraded if there is a poor ground connection or a voltage drop on the electric supply line to the pump and/or pump output restrictions...

Where is the AC Compressor Control Relay on a 2001 Chevy Malibu located?

The A/C control relay is in the "Fuse Relay Center" which looks like a black plastic box in the under hood area. The relay may be a micro relay and will be labeled "AC Clutch". If you have a non...

My JEEP GC is coolant temp is high and I changed the themorstat

Hello, thank you for writing in. While that is a little higher than we would like to see, it is not overwhelmingly hot for the engine. Once it hits 260, you must cut off power to the vehicle. Anything over...

Ran out of gas won't start fuel pump working?

Hey there, thanks for writing in about your 1993 Chevrolet K1500. Keep in mind that just because the fuel pump runs does not mean it produces enough pressure for the fuel injection of the engine. Have the pressure tested to...

My temp guage goes down almost to c when i drive on freeway

It's possible the engine cooling system thermostat is sticking in the open position. That will cause lower than normal operating temperature. It is also possible that the temperature sensor (a thermistor) is faulty, or the circuit wiring and/or dash gauge...

Car stalls during braking and deceleration

It is possible that the noise and "no power" symptom you experience is the exhaust pressure in the turbocharger of your engine being released. In some cases, an excessively rich mixture of fumes in the exhaust is ignited causing a...

Car is shaking violently

Since you have listed a number of issues, there is no certain way to provide you with a definitive answer. It's highly unlikely that all your issues are rooted in one part or system. If the plugs are covered in...

Stalling when gas pedal pressed down quickly or too fast also happening when stopping at lights and sometimes during idle.

Hey there. It sounds like you may have a mass air sensor problem or an intake leak between the throttle body and mass air sensor. This is a perfect example of why you should have a mechanic conduct a pre-purchase...

After replacing battery, fuse box, & starter, the battery is still drained

Hello. If the battery is draining, then you typically have a failing body control module to the ignition switch. These commonly cause this on your vehicle. I usually start by testing the ignition switch first to see if there are...

Related articles

How Can You Tell That Your Fuel Pump Isn’t Working?
The The fuel pump is responsible for getting fuel out of the gas tank and up to the engine. The pump itself is usually located inside the gas tank. There are a handful of symptoms to look out for that...
Symptoms of a Bad or Failing Cold Start Injector
Common signs include hard starting, a decrease in fuel efficiency, and engine performance issues.
How Long Does a Fuel Rail Sensor Last?
The The amount of pressure that is in a car’s fuel system is important and something that is heavily monitored. Without the proper amount of fuel pressure, the gas will not be able to properly circulate. This lack of circulation...