Question about 2001 Chevrolet Tahoe
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Posted on Jan 02, 2017
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
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
Go to the autozone website at autozone.com 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
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 FixYa.com!
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!!!!!!"
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.
Posted on Jun 13, 2010
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