Fuel Pump Replacement

Hi Richard. I just received a quote from my mechanic that I've been going to for years to replace the entire fuel pump and control module for $1150. Is that a reasonable estimate? It appears to be normal to high based on the website estimates.

My car has 66000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hi there. Replacing the fuel pump on a Volkswagen CC is rather challenging and takes quite a bit of time to complete. That estimate is a bit on the higher side, but within reason for a professional shop. If you’d like to compare costs by having one of our mobile mechanics come to your location to complete this service, please click this link and then click the blue Get a Quote button. Once we receive your information we will send you a price estimate. Thanks!

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The fuel pump is powered by a compact electric motor and is located in the vehicle`s gas tank.
It takes gas from the gas tank and sends it to the engine so your car, truck, or SUV can start and run. Your vehicle`s fuel pump should last at least 100,000 miles or more.
A faulty fuel pump may be the reason for struggling to maintain speed, engine overheating, sputtering, or the “check engine” light illuminating. Fuel pump replacement is moderately complicated and may involve removing the fuel tank if no access panel exists in the passenger compartment.
Most cars have an in-tank pump mounted within the fuel tank, although some have an inline pump located between the gas tank and the engine.
Q: Can you drive with a bad fuel pump? A: Because a bad fuel pump could cause unexpected drops in power or even completely shut the vehicle down, we do not recommend driving with the knowledge of a bad fuel pump.
Fuel pump failures tend to be sudden and unpredictable, with few symptoms to warn the motorist that trouble is brewing. And the higher the mileage on the vehicle, the greater the risk of a fuel pump failure.
Fuel pump failures can be caused by electrical faults, old age (wear) or fuel contaminants (dirt, moisture or bad gas). Fuel pump failures often occur without warning. Fuel pumps, injectors and pressure regulators are the three most commonly replaced fuel system components.
Can a fuel pump go out without warning? Absolutely! A car fuel pump will fail without warning more often than you may think. All things related to a car fuel pumps like the injectors, the pressure regulator, and the car fuel pump itself are the part that are most replaced with the fuel system.
Bad Fuel Pump, Fuel Pressure Sensor Can Trigger `Check Engine` Light, P0087 Code. Your car`s “Check Engine” or “Service Engine Soon” light can flash on for more than 1,400 different reasons.
How long does it take to replace a fuel pump? In most cases, around two to three hours. However, job times can vary widely depending on how easy it is to access the pump. The fuel pump sits inside the fuel tank, and is attached to a plate on the top of the tank.
The average fuel pump lasts for more than 100,000 miles and sometimes longer, so more than likely, you won`t have to worry about it failing for quite a while. But the more miles your car accumulates, the more liable you are to run into a failed fuel pump.
1 Answer. You shouldn`t have to reset the ecm after changing the fuel pump.
A faulty fuel pump can cause all kinds of engine problems. This is because the fuel pump is responsible for the fuel delivery from the tank to the engine. The average lifespan of a fuel pump is 100,000 miles; most pumps last longer than that.
After 100,000 miles, the failure of the pump is likely enough that if you are replacing a major part in the fuel system nearby, it may be advantageous to replace it at the same time.
Irregular resistance within the fuel pump motor can lead to your car slowing down and being unable to accelerate. Failing to accelerate is a good sign that your vehicle`s fuel pump needs inspection.
There`s no such thing as an intermittent mechanical fuel pump failure. Any power loss, engine `choke` problems, etc. are being caused by something else. In a fuel injected engine, electric fuel pumps can fail intermittently.
After placing the rag under the test port, install the pressure tester to the port. Then start the engine and start recording the pressure reading. You can check the manufacturer`s manual on pressure testing the fuel pump. Some manufacturers suggest checking the pressure with the engine running at a particular RPM.
Start the car and let it idle. Install a fuel pressure gauge, run the pump, and note the pressure reading. Then compare it to the manufacturer specification. If the pressure is low, you should address that problem.
The most common diagnostic procedures for fuel pumps in the past were analog and hands-on, and most fuel pump-related problems could be solved with a pressure gauge and voltmeter. Today, the scan tool is quickly becoming the most important tool when diagnosing a fuel supply problem.
P2635 is a diagnostic trouble code (DTC) for “Fuel Pump `A` Low Flow / Performance”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
You need to always check for a fuel filter in every vehicle you work on. If there`s one, you need to replace it along with the fuel pump. A partially clogged fuel filter can kill the pump. A clogged fuel filter makes the pump work harder, shortening its life.
Just because you hear the fuel pump run does not mean it is pumping the correct pressure to the injection system. If the pressure is real low or the filter is plugged solid, then the pump may not get enough fuel to the fuel rail. The only way to know is to test the fuel pressure at the fuel rail test port.
If your car doesn`t start with a new fuel pump, chances are the fuel pump is either not hooked up right or is broken. Double check that the pump is correctly installed and all hose attachments are plugged in. Next, check for any blockages along the fuel line—this can also cause your car not to start.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Just replaced my fuel pump but its not getting any power tested fuel pump relay and fuel fuse both good tested the wires all good.
ANSWER : You need to look at the theft light on dash to make sure it comes on and goes off when you turn the key to the on position. If light comes on and stays on then your theft system is causing the fuel pump to not be engaged. I recommend you check the theft system and then scan the computer for theft system codes. You may need to reprogram the keys to work or you have an bad sensor for the ignition key in the steering column.

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Replaced fuel pump. Car won’t start. 2002 Infinity I35
ANSWER : Hi there – the metal component you describe is a fuel check valve on the fuel return line. Its function is to maintain a small amount of pressure in the fuel system so that starting does not require the fuel pump to run very long before the engine will start. Having replaced the fuel pump and fuel filter, I would check fuel pressure while the car is running. This is to check the fuel pump relay for burned contacts that won’t support full electrical current to the pump, and for proper fuel pressure – a malfunctioning fuel pressure regulator could also restrict power and higher speeds if pressure is too low. I would recommend an inspection of the fuel system by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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Engine crank, no coil spark, fuel pump does not kick in.
ANSWER : Hi there. There could be multiple issues causing your lack of spark problem, ranging from a minor electrical short in the main relay to an issue with your ECU. In order to know for sure, you should have a professional mobile mechanic complete an electrical problems inspection.

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Hi. i have a 2000 kia sportage 4WD and it looks like the fuel pump needs to be replaced. Is it necessary to drop the fuel tank in order to replace the fuel pump?
ANSWER : Hi there. The fuel pump could be changed by using a special tool behind the seats in your vehicle. You will have to remove the carpet behind the rear seats and you will have access to the fuel pump. I suggest getting a plastic garbage bag and place it all around the fuel pump area to prevent any fuel from getting in the vehicle. If you are unable to gain access to the fuel pump from inside the vehicle cab, then you will have to drop the fuel tank. If you need further assistance with replacing the fuel pump, then seek out a professional, such as one from Your Mechanic, to help you.

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Fuel pressure
ANSWER : Hello,
You may want to try checking the fuel pump relay. The relay wires should have ground on two wires, power on one wire and switched power on another wire. To activate the fuel pump your ECU actually connects one of the ground wires to complete the circuit and send power to the fuel pump. If the wires all have power running through them, then it is likely you have a faulty relay. The wire coming from the fuel pump is the other ground wire. I would recommend having an expert from YourMechanic come to your location to diagnose your wiring as this can be very difficult and time consuming without the proper wiring diagram.

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I replaced the fuel pump and now my truck won’t start
ANSWER : Hi there:

In some cases, when the fuel pump is not supplying fuel from the tank to the fuel injectors it’s due to one of three different issues. First, it’s possible that the pump or some of the hose attachments are installed backwards or that there is a blockage somewhere in the fuel lines; typically at the first fuel filter. Finally, it’s possible that you have a ground issue somewhere near the fuel pump that’s causing a reduction in power. The best way to trace this issue is to contact a mobile mechanic and have them help you diagnose this issue; as the process for tracing a fuel pump delivery issue can be complex and very time consuming.

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I have a 1981 e-350 with dual fuel tanks the p.o. added a third tank and 3 electric fuel pumps along with sepparate gauges and swi
ANSWER : The switch you are referring to is vended with the required electrical and fuel schematic (I just looked in the box) that answers your installation question. If you want an advance view, here is a link as well. Yes, you need a return line and just refer to the aforementioned link. If you are retrofitting back to OEM, I strongly encourage you to buy the original Factory Service Manual (FSM). There are lots of details attending this system and obviously it is difficult to recount it all here. The FSM will make your life much easier and you can then make sure your installation is perfect. Alternatively, YourMechanic can dispatch a certified mechanic and perform the whole retrofit and check out if you desire. Just request and schedule a generic service such as fuel pump service and the mechanic will come to your location and estimate the parts and labor required. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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Does my car need a R& R fuel pump XL product as a fuel pump replacement?
ANSWER : You should not need anything larger than the stock size fuel pump. Depending on which engine is in your Pontiac Grand Am, you should have the following with the 3.1 engine: ignition on 52-59 psi and at idle 42-56 psi. With the 3.8 engine: ignition on 48-54 psi. You may have already diagnosed this, but you may want to also check to be sure that the fuel pressure regulator is not bad as well as this can cause a drop in fuel pressure. I would recommend having an expert from YourMechanic come to your home to remove and replace your fuel pump.

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