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

70,145

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

70,145

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

70,145

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

70,145

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

Add photo

Related Questions

  • Fuel pump cuts on and off when driving over pot holes 8 answers

    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

    1998 GMC Sierra C/K 1500

    -

    Maintenance & Repair

  • installed new fuel pump not getting juice 2 answers

    ow to replace a rotted gas tank and fuelhow to replace a rotted gas tank and fuel lines replaced lines replaced fuel pump replaced tank not getting juice meaning no electrical signal.

    1990 GMC Sierra C/K 1500

    -

    Maintenance & Repair

  • 89 Sierra hesitation when getting on the pedal 4 answers

    This truck has a 5.7 tbi/700r4 with heddman hedders that have NO 02 sensor bung. There is no 02 sensor in my truck right now. May be missing some important grounds. will do a powerbrake like a brand...

    1989 GMC Sierra C/K 1500

    -

    Maintenance & Repair

  • Boggs out on take off 1 answer

    My 88 sierra 5.7 tbi Boggs out on take off. Wnta to die at stops. Runs great in park. Changed fuel filter, pluggs, wires, rotor, map sensor, tps, coolent sensor, iac, egr valve, egr valve selinoid,...

    1988 GMC Sierra C/K 1500

    -

    Maintenance & Repair

  • what do i look for when my truck boggs down and the back fires alot. 3 answers

    i have a 1998 gmc 1500 5.0 it wouldnt start one day so i changed all the plugs and now it runs in park a little rough. then when i drive it it boggs down and back fires alot. what am i looking for.

    1998 GMC Sierra C/K 1500

    -

    Maintenance & Repair

Sierra C/K 1500

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

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search GMC Sierra C/K 1500 Questions

GMC Sierra C/K 1500 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 150
#2 enginecreator
enginecreator
Reputation 130
#3 John Saffrahn
John Saffrahn
Reputation 120
View All

Related Models For Sale

Used GMC Sierra 1500
181 Great Deals out of 9,345 listings starting at $2,995
Used Chevrolet Silverado 1500
132 Great Deals out of 9,197 listings starting at $100
Used Ford F-150
368 Great Deals out of 9,658 listings starting at $995
Used Dodge Ram 1500
52 Great Deals out of 539 listings starting at $2,499
Used Toyota Tacoma
18 Great Deals out of 780 listings starting at $5,850
Used GMC Sierra 2500
7 listings starting at $5,995
Used GMC Yukon
14 Great Deals out of 735 listings starting at $6,950
Used Chevrolet Silverado 2500
4 listings starting at $13,850

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.