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1999 tahoe fuel pump / electrical

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rapalanlord
New User

Dec 9, 2008, 6:07 PM

Post #1 of 4 (2650 views)
1999 tahoe fuel pump / electrical Sign In
Year of vehicle: 1999
Make of vehicle: chevy
Model of vehicle: tahoe
Engine size: 5.7 V8
Mileage/Kilometers 123,000

All of a sudden, fuel pump (that whining under the car) won't turn on, then leave alone for a few hours and it's ok.

1. About 6 months ago, the hand on the fuel gauge starting vibrating.
2. 2 months ago Engine compartment light won't shut off after closing hood.
3. 2 weeks ago Fuel pump wouldn't turn on, then ok next day etc
4. 2 days ago Electric Driver side window electric would not go down, fuel pump again would not turn on

replaced fuel relay yesterday, fuel pump still did not work.

came home today, started car ok and driver side window rolled down ok.

is this a combo window motor / fuel pump problem? electrical harness problem somewhere? multiple relay replacement?

please help and provide some direction if you can.




Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 9, 2008, 8:25 PM

Post #2 of 4 (2644 views)
Re: 1999 tahoe fuel pump / electrical Sign In
There have been corrosion problems with wiring connection right near the tank. I'd check that out for the fuel gauge + pump issues and don't have a clue what connection the window and a hood light would have to that??

T



rapalanlord
New User

Dec 10, 2008, 5:28 PM

Post #3 of 4 (2634 views)
Re: 1999 tahoe fuel pump / electrical Sign In
thanks tom. can i get to the harness by jacking up the car. or is this a tank removal? tank is under driver side.


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 10, 2008, 9:07 PM

Post #4 of 4 (2628 views)
Re: 1999 tahoe fuel pump / electrical Sign In
Saw one while working at a friend's shop and the connector plug was the problem. Tried to find a pic of the harness listed and suggested but just found the whole pump - not the wires separately. The problem was a plug with bail only - and would require removal of pump to replace but that may not be necessary.

I wanted to take that plug to get a file pic of how it looked as that was an elusive problem at that shop - not mine and it was the plug - when separated showed the copper geenish/aqua corrosion at the plug and the gauge AND the pump didn't work properly on that one - all was replaced - not my shop or job. Connections inside the tank aren't subject to weather or better not be - like road salts used for Winter that raises all hell with stuff like that.

It's a maybe for you. I'd try WD-40 AND silicone grease to seal the connector after inspected and or cleaned up. If really messed up I'd try to solder in a new connetor without taking tank out if I was pretty sure all was well with pump and inside,

T

for a 1999 Chevrolet Truck Tahoe 4WD

Related Parts Fuel Filter Fuel Tank Fuel Tank Strap About this product: Part Number: E3534M Weight: 2.62 lbs. Warranty: 1 YR Application: With RFI filter pump
4 door model
Note: Complete fuel pump module assembly and strainer. Drop fuel tank and clean before replacing fuel pump. Wiring Harness Replacement Recommended. With Module code GFV.






 
 
 






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