Why wont my fuel pump come on?

20

Asked by Mar 03, 2015 at 11:03 PM about the 1998 Chevrolet Suburban K1500 4WD

Question type: Maintenance & Repair

We tested the with a voltage meter. We get 12 volts at the plug for the pump for 2
seconds when turning on to the on position & 12 volts continuously when cranking over
but when we plug in the fuel pump it does nothing. We ran jumper wires from the pump to
a battery directly & it fires up. Totally baffled here.

2 Answers

83,435

Check the pumps connector at the tank, the connectors are known failures, usually when you buy a replacement plum it is included in the box. I had a Tahoe that I had long enough for it to burn through 2 fuel pumps, on the 2nd pump I had to replace the plug, you couldn't see a problem without shining a light through it then you could see the black corrosion inside it. HTH

20

Changed the plug (again) when I have the pump unplugged & check I got voltage (to either side of the splice & at the plug. However when I plug it in I have no voltage at the splice (either side). Changed the low oil/fuel pump switch, also replaced the fuel pump relay. The first pump we replaced was 9 months ago, so it was under warranty took it in replaced it with another new pump (thinking it was the pump, then took it out went & got yet another pump still same issues.)

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Chevrolet Suburban Questions

UK Questions

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

Chevrolet Suburban Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 900
#2 Eric Fritz
Eric Fritz
Reputation 850
#3 Neal Turner
Neal Turner
Reputation 760
View All

Related Models For Sale

Used Chevrolet Tahoe
820 Great Deals out of 27,815 listings starting at $1,700
Used GMC Yukon
555 Great Deals out of 17,134 listings starting at $1,875
Used Ford Expedition
472 Great Deals out of 24,752 listings starting at $1,500
Used Cadillac Escalade
279 Great Deals out of 10,245 listings starting at $1,900
Used Chevrolet Silverado 1500
2,515 Great Deals out of 152,117 listings starting at $1,500
Used Ford F-150
3,023 Great Deals out of 207,755 listings starting at $1,000
Used Lincoln Navigator
122 Great Deals out of 5,933 listings starting at $1,299
Used GMC Suburban
175 listings starting at $1,995
Used Ford Explorer
1,071 Great Deals out of 71,554 listings starting at $1,000

Used Cars For Sale

2017 Chevrolet Suburban For Sale
3,095 listings starting at $42,829
2016 Chevrolet Suburban For Sale
50 Great Deals out of 4,752 listings starting at $35,995
2015 Chevrolet Suburban For Sale
61 Great Deals out of 1,840 listings starting at $28,855
2014 Chevrolet Suburban For Sale
22 Great Deals out of 576 listings starting at $18,000
2013 Chevrolet Suburban For Sale
70 Great Deals out of 1,043 listings starting at $15,995