truck won't start unless floored and then dies out is it flooded?

Asked by Oct 01, 2012 at 08:24 PM about the 1990 GMC Sierra 1500 C1500 Extended Cab SB

Question type: Maintenance & Repair

My truck has been starting good and running pretty good but dies at times and I have to floor it to get
it started again. Now it won't start at all. What could my problem be?

1 Answer

34,015

When you press all the way down on the gas its going into clear flood mode and it prevents the injectors from opening. I would say either one of the two injectors are bad or the fuel pressure regulator ruptured. Im pretty sure the regulator is "kinda" inside the throttle body. If that's the case I would bet that's it. Have someone turn the key on with the air filter of and look at the injectors.

Your Answer

Add photo

Related Questions

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 5,100
#2 John Saffrahn
John Saffrahn
Reputation 3,560
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,240
View All

Related Models For Sale

Used Ford F-150
2,064 Great Deals out of 207,332 listings starting at $1,499
Used Chevrolet Camaro
242 Great Deals out of 31,193 listings starting at $369

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
51 Great Deals out of 45,367 listings starting at $23,408
2016 GMC Sierra 1500 For Sale
88 Great Deals out of 3,573 listings starting at $17,671
2015 GMC Sierra 1500 For Sale
107 Great Deals out of 4,043 listings starting at $14,999
2014 GMC Sierra 1500 For Sale
101 Great Deals out of 4,286 listings starting at $14,495
2013 GMC Sierra 1500 For Sale
46 Great Deals out of 1,925 listings starting at $10,950

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.