Rough idle , stalls when let off gas

20

Asked by Nickolas361 Feb 03, 2021 at 08:45 AM about the 2001 Chevrolet Silverado 1500 LS RWD

Question type: Maintenance & Repair

2 Answers
20

Nickolas361 answered 3 years ago

Hi I have a Chevy single cab 5.3 that won’t start and I can’t seem to find out why it’s starts but immediately starts running rough if I don’t touch the gas it’ll stay on for about 45 sec and stall on its own I can press the gas and it’ll also keep running but as soon as I let off the gas it stall I replaced the fuel pump , fuel filter , iac , tps, crank sensor, new wires new ngk spark plugs ?? Can anyone help me out

2 people found this helpful.
Mark helpful
660

exCompaqr answered 3 years ago

Did you clean the throttle "butterfly" valve? It may be stuck and not rotating "properly" due to being "gummed-up". If your truck has an OBDII plug connection below the dash below the steering column, then connect a scanner to it to read any error codes that may be available, too.

Mark helpful

Your Answer:

Related Questions

  • Rough idle , stalls when let off gas 2 Answers

    2001 Chevrolet Silverado 1500 LS RWD

    -

    Maintenance & Repair

  • Tapping noise when you let off the gas 5 Answers

    I just bought a 2008 sivlverado 1500 LT. I noticed that there was a tapping noise in the front end when I let off the gas. Chevy machanic did not know what it was. If you put in neutral while drivin...

    Chevrolet Silverado 1500

    -

    Maintenance & Repair

  • Rough idle 1 Answer

    My 4.3 vortec is idling rough and jerking until I get it up to speed, low compression, I changed the plugs and they were dry. Check engine light code said misfire on cylinder 5...my daughters moth...

    2000 Chevrolet Silverado 1500 LB RWD

    -

    Maintenance & Repair

  • Rough idle 1 Answer

    I have 4 codes that won't go away #1 cam sensor #2miss fire #3oil pressure sensor #4 throttle position sensor. I know when more than one pops up its due to one thing somestimes

    2011 Chevrolet Silverado 1500 LS Crew Cab RWD

    -

    Maintenance & Repair

  • After a lot of things were replaced. Why does my vehicle still have rough idle? 2 Answers

    I replaced my distributor, spark plugs, mass air flow, throttle position sensor, all 02 sensors, ac compressor and my truck still has a rough idle. The vehicle sputters and stalls when ac is turned...

    2001 Chevrolet Silverado 1500

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet Silverado 1500 Questions

CarGurus Experts

  • #1
    Rowefast
    Reputation
    10,490
  • #2
    John Carson
    Reputation
    9,660
  • #3
    Andrew Olsen
    Reputation
    9,650
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 1500
135 Great Deals out of 7,472 listings starting at $1,888
Used Ford F-150
339 Great Deals out of 15,343 listings starting at $1,954
Used Chevrolet Silverado 2500HD
23 Great Deals out of 1,213 listings starting at $5,990
Used Toyota Tundra
40 Great Deals out of 1,089 listings starting at $1,915
Used Dodge RAM 1500
3 Great Deals out of 77 listings starting at $4,800
Used Toyota Tacoma
47 Great Deals out of 978 listings starting at $8,500
Used Chevrolet Tahoe
18 Great Deals out of 862 listings starting at $5,995
Used GMC Sierra 2500HD
23 Great Deals out of 1,795 listings starting at $7,800
Used Ford F-250 Super Duty
22 Great Deals out of 1,216 listings starting at $4,295
Used Chevrolet Camaro
24 Great Deals out of 361 listings starting at $10,500
Used Chevrolet Corvette
27 Great Deals out of 925 listings starting at $14,900

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.