Fuel pump

Asked by Feb 10, 2016 at 12:45 PM about the 2002 GMC Sierra 1500HD

Question type: Maintenance & Repair

I turn my truck off and the fuel pump stays on

7 Answers

320

I haven't looked at your wiring yet? If there is an oil pressure switch in that circuit, it could cause a problem, other wise, I'd have to check fuel pump relay and circuits.

1 out of 1 people think this is helpful.
320

Hey BOB, didn't see you, have a good day. I try to answer only unanswered questions. My typing is a little slow, sometimes I do bump into others.

4,765

Oily, you mind is working...I keep writing 1986 on things, still have my manual drafting tools set, and the Machinery's Handbook 22nd edition, Iso 9000 manual and are practiced at Ansi-Y-14.5...if you understand any of that, am looking for a few minds to think over my exercise powered recapturing exercise vehicle that I've designed about 90 percent~ as I write 1986 is the Last time that I had a call for my expertise~ Evinrude, Briggs and Stratton, SMI automation (zippo lighter machinery), cooling loops and cryogenics...later here in California....then wobbly wobbly time to go thru the MRI to find extensive Multiple Sclerosis~ but still have this buggy to finish in 3D and am committed to make 1000 paintings...this is what keeps me of dying of loneliness out here in the cheapest place in California 95424~

1 out of 1 people think this is helpful.
4,765

are you sure that it is the FUEL pump? the radiator fan is supposed to stay on until the temp has cooled back down from operating temperature~ this reduces thermal stress on the critical cooling components...this is normal~ so may in fact NOT be the problem you're thinking of...NOT the fuel pump...but the cooling fan? follow me?~

1 out of 1 people think this is helpful.
4,765

the pump is inside the tank, and unless you've a stethascope on the fuel tank to hear the whirring of the pump...is a closed system and.....you could press a pen into the shroeder valve to see if it's spraying~ sadly gasoline will go everywhere, so use a mechanic's towel to catch the gas~ but honestly do not believe that it's the fuel pump running...does it run in the ACC position too...or only when the motor is HOT...I do believe this does not happen when the motor is cold~

1 out of 1 people think this is helpful.
320

You know how it is, every once in a while you bump into somebody that is trying to mark their territory. I usually just ignore those people. It' s about 6 of one and half dozen of another. Doesn't really matter. Have a good day.

4,765

perhaps Tony dropped the question on us, realized that is was NOT the fuel pump, but the cooling fan...and left town~...has not responded to any of our efforts?~

Your Answer

Add photo

Related Questions

Sierra 1500HD

Looking for a Used Sierra 1500HD in your area?

CarGurus has 4 nationwide Sierra 1500HD listings starting at $11,995.

Postal Code:

Search GMC Sierra 1500HD Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

GMC Sierra 1500HD Experts

#1 reverend1735
reverend1735
Reputation 40
#2 bob_nueske
bob_nueske
Reputation 30
#2 pauljboudreau
pauljboudreau
Reputation 30
View All

Related Models For Sale

Used GMC Sierra 1500
145 Great Deals out of 6,557 listings starting at $2,499
Used GMC Sierra 2500HD
20 Great Deals out of 804 listings starting at $5,980
Used Chevrolet Silverado 1500
114 Great Deals out of 5,456 listings starting at $2,339
Used Ford F-150
345 Great Deals out of 6,446 listings starting at $1,000
Used Chevrolet Silverado 1500HD
3 listings starting at $3,695
Used Chevrolet Silverado 2500HD
18 Great Deals out of 618 listings starting at $7,900
Used Dodge Ram 1500
60 Great Deals out of 458 listings starting at $2,995
Used Toyota Tundra
28 Great Deals out of 681 listings starting at $6,319
Used GMC Sierra 2500
9 listings starting at $8,995
Used Ford F-250 Super Duty
15 Great Deals out of 463 listings starting at $2,500
Used Toyota Tacoma
26 Great Deals out of 632 listings starting at $4,999
Used Dodge Ram 2500
3 Great Deals out of 104 listings starting at $9,995
Used GMC Yukon
7 Great Deals out of 470 listings starting at $6,900
Used Jeep Grand Cherokee
41 Great Deals out of 3,385 listings starting at $366

Used Cars For Sale

2006 GMC Sierra 1500HD For Sale
1 listings starting at $15,995
2003 GMC Sierra 1500HD For Sale
1 listings starting at $11,995