Fuel pump cuts on and off when driving over pot holes

Asked by Mar 17, 2017 at 09:37 PM about the 1998 GMC Sierra C/K 1500

Question type: Maintenance & Repair

When ever I go over a potholes or bad cracks in the  
street the fuel pump cuts off but after going over
the pot holes it goes back on

8 Answers

86,805

Sounds like a bad electrical connection.

1 of 1 people found this helpful.

Ohh thank you for iam think it may be that. My question is from where ?

Everything was fine until today I changed both of the batteries and the problem started

86,805

I would first check the connector to the fuel pump. There is probably a plug that may be loose or corroded.

86,805

I just saw your mention of the battery issue. I would make sure the accessory hot wire connection at the battery is good.

86,805

Make sure all the battery connections are clean and tight.

I check and went for a test drive and it still did the same thing, the truck has bad suspensions the pothole contact s are hard

But everything was fine but I just took it to get new batteries thats when everything started Idk if that was a factor

Your Answer

Sierra C/K 1500

Looking for a Used Sierra C/K 1500 in your area?

CarGurus has 2 nationwide Sierra C/K 1500 listings and the tools to find you a great deal.

ZIP:

GMC Sierra C/K 1500 Experts

  • #1
    Andrew Olsen
    Reputation
    170
  • #2
    enginecreator
    Reputation
    130
  • #2
    John Saffrahn
    Reputation
    130
View All

Related Models For Sale

Used GMC Sierra 1500
1,169 Great Deals out of 64,515 listings starting at $999
Used Chevrolet Silverado 1500
2,657 Great Deals out of 174,213 listings starting at $955
Used Ford F-150
3,212 Great Deals out of 223,759 listings starting at $1,200
Used GMC Sierra
18 listings
Used Chevrolet Blazer
6 Great Deals out of 931 listings starting at $950
Used Chevrolet C/K 1500
820 listings starting at $2,436
Used Dodge Ram 1500
417 Great Deals out of 11,116 listings starting at $950
Used GMC Yukon
594 Great Deals out of 20,331 listings starting at $2,500
Used Chevrolet Tahoe
793 Great Deals out of 41,832 listings starting at $1,987
Used Toyota Tacoma
685 Great Deals out of 45,328 listings starting at $2,500
Used Dodge Ram 2500
152 Great Deals out of 5,471 listings starting at $2,661

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.