rough idle and when i floor gas pedal truck stutters horribly and by that i mean darn near falls on her face and stalls.

Asked by Apr 10, 2017 at 10:51 AM about the 1992 GMC Sierra 1500 C1500 SLE Standard Cab SB

Question type: Maintenance & Repair

hey good morning all, so i have a 92gmc c1500 4.3l that i let sit for some
time(9mos), recently i put some work into getting her going, i had to replace
master cylinder for clutch, rotor and cap, fuel filter, and obviously a battery.
removed all bad gas(as much as i could) filled up with 9 gallons of 89 and
some sea foam.when i go to start it truck it won't idle on its own(i have to keep
feathering throttle) until it gets warmed up(10mins or so) but even after idling
for a time if i floor the gas pedal to rev it up, the truck darn near stalls out. if i
slowly increase throttle its okayish but i notice a lot of loss of power in every
gear if i try to get on it. so to try to fix it i replaced o2 sensor two days ago and
successfully cleared 44code. where should i go from here? pcv?   

1 Answer

not everyone at once.it was the egr valve. when i pulled the hose and compressed the baffle and held my finger on the nipple it still moved.

Your Answer

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,340
  • #2
    John Saffrahn
    Reputation
    3,690
  • #3
    Glenn Clingenpeel
    Reputation
    3,380
View All

Related Models For Sale

Used Ford F-150
462 Great Deals out of 10,188 listings starting at $1,400
Used GMC Yukon
15 Great Deals out of 938 listings starting at $3,000
Used Chevrolet Camaro
755 listings starting at $10,929

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
24 Great Deals out of 5,167 listings starting at $27,385
2016 GMC Sierra 1500 For Sale
25 Great Deals out of 278 listings starting at $20,988
2015 GMC Sierra 1500 For Sale
56 Great Deals out of 584 listings starting at $18,994
2014 GMC Sierra 1500 For Sale
51 Great Deals out of 499 listings starting at $17,995
2013 GMC Sierra 1500 For Sale
27 Great Deals out of 248 listings starting at $10,560

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.