high idle

Asked by James Jul 02, 2018 at 09:37 PM about the 2003 Chevrolet Silverado 1500 LB RWD

Question type: Maintenance & Repair

what would cause engine to run at 3000 rpms when started

1 Answer
295

Gallon77 answered 6 years ago

This will happen if there's a vacuum leak under the hood. If any lines around t in e engine are disconnected, you may hear a sucking noise and the engine will idle high.

4 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Throttle body/high idle 4 Answers

    I just took my throttle body assembly off to clean it. Gave everything plenty of time to dry before putting everything back on. Went to start it back up, and it hesitated for just a second then tur...

    2013 Chevrolet Silverado 1500 LT Extended Cab RWD

    -

    Maintenance & Repair

  • high idle 1 Answer

    what would cause engine to run at 3000 rpms when started

    2003 Chevrolet Silverado 1500 LB RWD

    -

    Maintenance & Repair

  • High Idle 8 Answers

    I got my oil changed a few days ago and on this past Saturday I cleaned my throttle body and after I did that the car started running a high idle. There's no leaks and i can't figure out what the ...

    2009 Chevrolet Malibu LTZ FWD

    -

    Maintenance & Repair

  • Idle high 6 Answers

    I have a 1990 k1500. Its idle high. Codes show a EGR , tps, IAC, and now its shifting hard. Put it in drive and it almost gives you whiplash.. You have to hit 30+ before it shifts out of first. If ...

    1990 Chevrolet C/K 1500 4WD

    -

    Maintenance & Repair

  • Starting and high idle 3 Answers

    Just purchased 1998 Blazer, 4.3l Vortech. No leaks shifts good and engine sounds good. PROBLEM: after sitting off for more than several hours the engine will not turn over with. Small shot of eth...

    1998 Chevrolet Blazer 4-Door 4WD

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet Silverado 1500 Questions

CarGurus Experts

  • #1
    Rowefast
    Reputation
    10,510
  • #2
    John Carson
    Reputation
    9,680
  • #2
    Andrew Olsen
    Reputation
    9,680
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 1500
143 Great Deals out of 7,206 listings starting at $3,950
Used Ford F-150
321 Great Deals out of 15,103 listings starting at $1,712
Used Chevrolet Silverado 2500HD
18 Great Deals out of 1,279 listings starting at $9,990
Used Toyota Tundra
34 Great Deals out of 1,190 listings starting at $8,500
Used Dodge RAM 1500
4 Great Deals out of 73 listings starting at $4,000
Used Chevrolet Tahoe
20 Great Deals out of 904 listings starting at $11,900
Used Toyota Tacoma
57 Great Deals out of 1,080 listings starting at $8,708
Used Chevrolet Colorado
25 Great Deals out of 1,496 listings starting at $6,800
Used GMC Sierra 2500HD
13 Great Deals out of 1,617 listings starting at $10,800
Used Ford F-250 Super Duty
24 Great Deals out of 1,201 listings starting at $8,995
Used Chevrolet Camaro
16 Great Deals out of 307 listings starting at $9,995
Used Chevrolet Corvette
28 Great Deals out of 1,058 listings starting at $15,871

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.