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
    5,520
  • #2
    John Saffrahn
    Reputation
    3,820
  • #3
    Glenn Clingenpeel
    Reputation
    3,570
View All

Related Models For Sale

Used Ford F-150
3,046 Great Deals out of 230,456 listings starting at $1,300
Used GMC Yukon
487 Great Deals out of 19,442 listings starting at $1,995
Used Chevrolet Camaro
398 Great Deals out of 31,486 listings starting at $3,495
Used Ford Mustang
341 Great Deals out of 42,379 listings starting at $1,488
Used Jeep Grand Cherokee
900 Great Deals out of 71,282 listings starting at $900

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
8 Great Deals out of 29,718 listings starting at $22,639
2017 GMC Sierra 1500 For Sale
82 Great Deals out of 5,713 listings starting at $21,471
2016 GMC Sierra 1500 For Sale
109 Great Deals out of 3,504 listings starting at $14,500
2015 GMC Sierra 1500 For Sale
193 Great Deals out of 5,712 listings starting at $13,500
2014 GMC Sierra 1500 For Sale
193 Great Deals out of 4,363 listings starting at $11,495

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.