I have a 1988 gmc sierra k1500 single cab short box stepside with a 350 and a 700r4 tran. i replaced the fuel pump the truck started fine. I tried to put out in gear and it started to grind then nothing i can shift from park to 1st and its like all the gears are gone truck will not move. trany fluid is new and full. I'm wondering if any one would know what went out.

10

Asked by Feb 13, 2013 at 11:53 AM about the 1990 GMC Sierra 1500 K1500 SLE 4WD Standard Cab Stepside SB

Question type: Maintenance & Repair

7 Answers

Mileage? And this happened right then when you changed fuel pump, or did it drive for a while?

1 of 1 people found this helpful.
21,495

is it up on rack for pump job,maby the driveshaft pulled back to tip of splines

throw out bearing?? and coincidence

10

It hasn't drove in a year or so we put the trany and transfer case back in to change the transferase but the truck wouldn't start after. I toke the box off to change the fuel pump and now it runs and starts fine. I tried to put it to drive and nothing.

10

I was thinking it may be the pump within the trany but I'm not sure

1 of 1 people found this helpful.

Have you made sure tranny fluid is getting to the torque convertor? I am gonna be gone a minute or 120 maybe....LOL I be thinking and I'll be back, it's tough to do this kind of stuff on tv, but we'll see, ok internet. But diagnosing a prob. like this isn't easy, unless you want to lay under the truck with a lap top, not kidding, well maybe. But it beats running back and forth to the house and especially if you can get me sound. no joke?

web cam.....LOL WT heck why not

Your Answer

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 66,427 nationwide Sierra 1500 listings starting at $2,495.

ZIP:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,410
  • #2
    John Saffrahn
    Reputation
    3,740
  • #3
    Glenn Clingenpeel
    Reputation
    3,430
View All

Related Models For Sale

Used Ford F-150
2,606 Great Deals out of 198,114 listings starting at $1,300
Used Chevrolet Camaro
451 Great Deals out of 30,878 listings starting at $2,495
Used Ford Mustang
593 Great Deals out of 36,397 listings starting at $1,200

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
90 Great Deals out of 22,094 listings starting at $23,500
2016 GMC Sierra 1500 For Sale
154 Great Deals out of 4,101 listings starting at $16,990
2015 GMC Sierra 1500 For Sale
178 Great Deals out of 5,312 listings starting at $16,900
2014 GMC Sierra 1500 For Sale
170 Great Deals out of 5,041 listings starting at $13,750
2013 GMC Sierra 1500 For Sale
76 Great Deals out of 2,158 listings starting at $7,950

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.