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

Asked by matthewttech 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?

2 Answers
69,055

John answered 11 years ago

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.

Mark helpful

Your Answer:

Related Questions

  • truck won't start unless floored and then dies out is it flooded? 2 Answers

    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?

    1990 GMC Sierra 1500 C1500 Extended Cab SB

    -

    Maintenance & Repair

  • my 94 gmc sierra 1500 will start then dies and then wont start again for awhile 6 Answers

    i will start my truck and it will idle for alittle bit then it dies and wont start again for alittle while. you can smell fuel like it is flooded.. can anyone help plz, pretty much have replaced ever...

    1994 GMC Sierra 1500 K1500 SL 4WD Standard Cab SB

    -

    Maintenance & Repair

  • truck starts then dies 1 Answer

    truck starts then dies it may run for a minute then act like its out of gas

    GMC Sierra 1500

    -

    Maintenance & Repair

  • Car losing power, battery life drained, then truck dies out. 1 Answer

    Going to rite-aid, I noticed head light's were dim, i thought it was just me. As I was apart to park, truck started to spudder, I looked at the gas gauge and noticed all gauges were at zero, even M...

    2005 GMC Sierra 1500

    -

    Maintenance & Repair

  • Won't crank nor start then it will. 4 Answers

    Yes I have a 2007 GMC Sierra 5.3L SLE1 4 DOOR EXT. Cab that will not crank nor start then you can wait a day or 2 and it will start and run perfectly. This has been going on for over a year. Also...

    2007 GMC Sierra 1500 SLE1 Ext. Cab LB 4WD

    -

    Maintenance & Repair

Own this car?

Share your experience with others.

1990 GMC Sierra 1500

Write a car review

Review another car

Shortcuts

Search GMC Sierra 1500 Questions

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,340
  • #2
    dragonflyoffshore
    Reputation
    11,500
  • #3
    John Saffrahn
    Reputation
    11,440
View All

Know more, shop wisely

Search

Related Models For Sale

Used Ford F-150
6,057 Great Deals out of 129,349 listings starting at $1,100

Used Cars for Sale

2024 GMC Sierra 1500 For Sale
69 Great Deals out of 43,186 listings starting at $28,434
2023 GMC Sierra 1500 For Sale
269 Great Deals out of 4,720 listings starting at $30,985
2022 GMC Sierra 1500 For Sale
181 Great Deals out of 1,649 listings starting at $28,590
2021 GMC Sierra 1500 For Sale
295 Great Deals out of 3,926 listings starting at $19,000
2020 GMC Sierra 1500 For Sale
180 Great Deals out of 2,368 listings starting at $17,990

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. Content will be removed if CarGurus becomes aware that it violates our policies.