Question about 2001 Chevrolet Tahoe

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200 tahoe Put new fuel pump in and filter it is not turning fuel pump on could this be a relay

Posted by Anonymous on

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Posted on Jan 02, 2017

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SOURCE: 2000 S10 4.3L

At the fuel pump relay you should have 1 full time hot wire. 1 hot wire when you turn on the switch. 1 ground, and the other wire goes to the pump. Test the ground to be sure it is good. If so then jump a hot to the one that goes to the pump and see if it runs.If it does then you have a bad relay or ECM. You can swap the relay with another of the same # from tour fuse box to test it.There is also a ground on top of the frame near the filler neck, check it too. Good Luck

Posted on May 06, 2009

  • 1 Answer

SOURCE: 1996 chevy tahoe fuel system

i am having the same problem with my 96 pickup i am getting low voltage to my fuel pump i have traced the wires back to the front the purpel wire is the one with low voltage i replaced fuel pump also fuel relay and still have low voltage

Posted on Jun 22, 2009

  • 1776 Answers

SOURCE: how to install fuel pump in chevy 2003 astro van

Go to the autozone website at and register your vehicle. It's free and will give you access to an online repair manual for your vehicle. The procedures for changing the fuel pump should be available there. Sure hope this helped and best wishes.

Posted on Aug 03, 2009

  • 1757 Answers

SOURCE: Have a 96 tahoe 5.7 replaced the fuel

Fuel Injectors possible, however the problem may actually be with the Fuel Injector Pressure Regulator.
Before deciding if it is the Fuel Injectors Check this first. This could be clogged or malfunctioning.
The Fuel Injector Pressure Regulator is available at:
(NO! I do not work for either store/company)
Autozone Part #800-315 for around $45.
Advance Auto Part #217-3074 for around $90.
Advance Auto Part #23043 for around $46.
Adavance Auto REBUILD KIT Item #9710 for around $29.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at!

Posted on Feb 18, 2010

Testimonial: "thank you we figured out when we put a fuel pressure tester on it that it had air in the lines and that let the air out and it started thank you!!!!!!"

  • 166 Answers

SOURCE: fuel pump not getting power

This is general information:
If your timing belt is broke the computer will shut the fuel pump off, as well as a low-oil pressure sensor (check your oil level).

If you have a bad Crank-shaft sensor this will happen.
A bad MAP sensor will not let the vehicle start but if you remove the electrical plug from it, it should start but will be rough.
A bad cam-sensor should only make it hard on fuel.
Inspect the wiring that leads directly to the tank - you may have broken a corroded wire, especially where it goes back into the body from the gas-tank back.
Try giving the tank a whack with a rubber hammer or chunk of wood as someone turns the key off and on to start position without actually turning the car over this will dislodge any dirt that may have got lodged into the fuel pump.

The computer or ECM:  Inspect the harness at this location for movement and rubbing of the harness causing wires to fray and or break at this location up to a couple feet of the ECM perhaps.

I don't think you could have mixed up the return line to the tank from the feel line.  The computer will shut it off if the pressure isn't reached within 2 seconds.  

Without knowing more info on to what led to this problem, why you changed anything or what was the original problem and conditions, noises.
Sometimes there is a seal that seals the fuel pump to the sending unit and if this o-ring isn't put back in, you'll **** air but I don't think that this is your problem.  I suspect the MAP or Crank Sensor.
I wouldn't replace anything without testing them though, and if you purchase a manual from Canadian Tire in Canada, it will tell you how to test each Sensor.
Most electrical I recommend taking to a garage and have them put it on the computer for $90. and then to replace the part that they put in the quote.
Good luck

Posted on Jun 13, 2010

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I have a 2002 chevy tahoe changed fuel pump and filter. it still wont start when you turn the key over it reads empty but we put 6 gallons of gas in it what could be wrong?

Check the fuel pump relay or the fuses. Could also be a filter near the injection rail. You might have a fuel cut off swithc. I don't know where it would be, but your owners manual would tell you. Good luck anyways.

Jan 19, 2013 | 2002 Chevrolet Tahoe

2 Answers

Location of chevy tahoe fuel pump relay

didnt specify year of vehicle most relays for tahoe is under hood and at side of dash on drivers side -- turn key to on and listen for hum of pump no hum try starting with starter fluid if starts test for power to connections ,pump and relay if power more than likely pump shot

Apr 29, 2017 | 2003 Chevrolet Tahoe

1 Answer

It will not start after running out of gas put gas in it changed ecm fuses relay fuel filter and battery

sounds like fuel pump..have someone stand near tank and turn on switch and see if you hear pump running..

Jul 26, 2011 | 2001 Chevrolet Tahoe

1 Answer

Tahoe will turn over but doesn't start. Just replaced the fuel pump about 4-5 months ago. The fuel filter was replaced as well and there's enough gas in it. What could be the problem? I read about not...

Have you tried to start it with starting fluid? Sometimes the aftermarket fuel pumps don't last long. Especially if the filter is not placed right on the bottom of the new pump. You should be able to take off the gas cap and hear the pump run for about 3-5 seconds when you turn the ignition on. If you don't hear the pump running then it is either your pump is bad again or the relay under the hood is not working. You can swap the relay with one next to it to see if it is bad. When you swap the relay turn on the ignition again and see if you hear the fuel pump.

Aug 31, 2010 | 1996 Chevrolet Tahoe

1 Answer

No power to fel pump

Hi the ignition was turned to the acces. possition
it needs to be turned to the RUN possition.there is no power to the fuel pump only in the CRANK and RUN possition
then if there is still no power there then you need to trace the wiring
hope this helps

May 17, 2009 | 2001 Chevrolet Tahoe

2 Answers

1996 chevy tahoe fuel system

check for voltage at the pump. If it has 12v there, (and a good ground) then pump is bad. there may be a pump fuse on the fuse block (can't remember) but if you find it has blown, the pump may be getting ready to fail. If fuse fixes the problem, replace it and carry an extra with you, then change the pump.

May 14, 2009 | 1996 Chevrolet Tahoe

1 Answer

Relieving fuel pressure on 2005 Chevrolet Tahoe

Pull out the fuel pump relay and start the engine, let it run till it goes dead. fuel pressure relieved!

Apr 25, 2009 | 2005 Chevrolet Tahoe

4 Answers

Tahoe won't start

Is your security light flashing? If your Tahoe has the factory ant-theft system, if the security light is flashing while you are cranking your anti-theft system has been activated. It is common for the Tahoes to wear out the ignition lock assembly, lock cylinder and the ignition switch(electrical) which is attached to the lock assembly. I have replaced all three parts with great success and solved the no start problem on several GM trucks.

The most common problem with these vehicles is the fuel pump. The pump should run for a few seconds when you turn the key on before you crank the engine. If you don't hear the pump run, go to the fuse/relay box under the hood. Look at the diagram on the inside of the lid and locate the fuel pump fuse and relay. Check the fuse to see if it is blown put it back if OK or replace it. Unplug the fuel pump relay and use a paper clip to jumper across terminals #30 & #87 where the relay plugs in. If the fuel pump starts running, you should be able to hear it run at the back of the vehicle, where the tank is. If you don't hear the pump running, hit the center of the tank dead-center with a rubber or wooden mallet. If the pump still doesn't run, see if you can get to the wires going to the fuel pump and wiggle them. If you hear the pump run, try starting the engine. If it starts, replace the relay, if that was the problem or the fuel pump AND relay if the fuel pump was the problem. WARNING! WHEN YOU UNPLUG THE PAPER CLIP. IT MAY BE HOT!!!
The fuel pumps AND connector are big problems with GM trucks. If you replace the fuel pump(which is located in the fuel tank), use only the factory pump which you can buy at your GM dealer or an auto parts store that sells Delco parts. If the fuel pump used the small square four-pin electrical connector, replace it with the fuel pump. The latest GM/Delco fuel pumps will come with the new plug which you MUST change over as it is now a flat four-pin connector.

Jun 11, 2008 | 2000 Chevrolet Tahoe

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