1995 gmc k1500

Asked by Sep 19, 2016 at 12:12 AM about the 1995 GMC Sierra 1500

Question type: Maintenance & Repair

My 1995 gmc 1500, 350 tbi 5.7 v8 runs perfect. But
when i first start it, even when its warmed up,
sounds like its trying to flood itself. When i first start
it, i have to push the gas all the way to the floor and
then let off when she fires up, but for the first 30
seconds, if i give it too much gas, it trys to stall, if i
barely give it gas, its runs fine. After that 30
seconds, she runs like a top, any ideas why its
doing this?

2 Answers

25,805

Pushing the gas pedal all the way to the floor sets a "clear flood" mode, the engine will crank but no fuel is delivered, giving engine a chance to clear up flooded fuel condition. Maybe check for DTCs, a stuck injector, fouled plugs, low fuel pressure (needs to be 55-60psi min to open poppets), bad/weak spark, etc.

5

Check PID for coolant sensor when cold. If it say below zero computer will give too much fuel.

Your Answer

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,300
  • #2
    John Saffrahn
    Reputation
    3,670
  • #3
    Glenn Clingenpeel
    Reputation
    3,350
View All

Related Models For Sale

Used Ford F-150
2,131 Great Deals out of 181,849 listings starting at $1,000
Used Dodge Ram 1500
404 Great Deals out of 10,668 listings starting at $1,500
Used Toyota Tacoma
556 Great Deals out of 41,730 listings starting at $2,999
Used GMC Yukon
416 Great Deals out of 20,901 listings starting at $2,000
Used Chevrolet Tahoe
625 Great Deals out of 36,861 listings starting at $1,800
Used Chevrolet Camaro
400 Great Deals out of 31,723 listings starting at $2,395

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
75 Great Deals out of 38,764 listings starting at $23,314
2016 GMC Sierra 1500 For Sale
89 Great Deals out of 3,502 listings starting at $17,000
2015 GMC Sierra 1500 For Sale
125 Great Deals out of 4,554 listings starting at $15,922
2014 GMC Sierra 1500 For Sale
120 Great Deals out of 4,633 listings starting at $12,987
2013 GMC Sierra 1500 For Sale
46 Great Deals out of 1,991 listings starting at $8,999

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.