I took the bed off my GMC 1500 1990 truck and changed the fuel pump, it started fine, put the bed back on it and now it will not start, what happened?

Asked by Jenandbilly Jan 18, 2015 at 07:47 AM about the 1990 GMC Sierra 1500 C1500 Standard Cab SB

Question type: Maintenance & Repair

the truck would not start so we took the bed off and changed the fuel pump. It started and run fine, we even drove it down the rode. After we put the bed back on the truck the truck would not start. Help!

23,940

Dannyl answered 9 years ago

I had one like this once and there was trouble with the connector. Have a friend keep keying up and shutting off to verify the start up 1-2 sec interval. Then you go with your test light or voltmeter, verify power and ground, an what one is the sender. If you have loose fitting tubes in the connector it can come and go by moving it around perhaps. Has to fit snug at each wire to pass current.

1 people found this helpful.

Mark helpful

Big_L_HOU answered 5 years ago

I went through 3 fuel pumps at one time on my Tahoe. Same problem except I had to drop the tank. Since you have the luxury of being able to remove the bed, drive it BEFORE you put the bed back on. Wiggle the wires and the lines to insure all is well. Good luck!

Mark helpful

Your Answer:

I took the bed off my GMC 1500 1990 truck and changed the fuel pump, it started fine, put the bed back on it and now it will not start, what happened? 2 Answers

the truck would not start so we took the bed off and changed the fuel pump. It started and run fine, we even drove it down the rode. After we put the bed back on the truck the truck would not start. H...

1990 GMC Sierra 1500 C1500 Standard Cab SB

-

Maintenance & Repair
Hi. My 1996 gmc sierra 1500 I was driving down the freeway and truck died. A couple minutes later it would start. I got home turned it off and it won't start. Got fuel up to the throttle body 2 Answers

Changed filter and regulator And pump is running. Starting fluid or gas in throttle body will start and run til it's gone. Help! Please

1996 GMC Sierra 1500 C1500 SL Extended Cab LB

-

Maintenance & Repair
I have a 2016 Sierra SLE I came out and started my truck had been driving it that morning it was fine. I come out the store I started my check engine light is on and it would not go in drive. 8 Answers

I started my truck drove it fine earlier came out store i started it my check engine light come on and my truck will not wouldn't move when I put it in drive. everything was good earlier when I drov...

2016 GMC Sierra 1500 SLE

-

Maintenance & Repair
security light not on, but gmc 1500 will not start there is a noise from the cycliinder where the key goes in, my truck was hit and hasn't started since but will turn over, will run if feed gas.. 1 Answer

Truck hit, have tried the security 10 minute on off stuff, but I do not have a yellow blinking light never did... however there is a noise after you turn the key to try and start that is like from the...

2003 GMC Sierra 1500 SLE Extended Cab SB

-

Maintenance & Repair
I have a 1990 gmc seirra 1500 4X4 with the 5.7 350 in it....im having trouble with it missing and backfiring thru the intake after it warms up...it runs fine cold....i 've replaced the plugs , wires , cap , button , and fuel filter and the fuel pump is about three yrs old...any ideas or experiences? 3 Answers

It seems to me like its choking itself to death....make sense?.....what would cause that?

1990 GMC Sierra 1500 K1500 4WD Extended Cab LB

-

Maintenance & Repair

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. Content will be removed if CarGurus becomes aware that it violates our policies.