what would cause a rough idle?

Asked by chargedbalt Jul 03, 2020 at 11:23 AM about the 2005 Chevrolet Cobalt SS Supercharged Coupe FWD

Question type: Maintenance & Repair

I've been chasing the same problem on my 05 ss
sc for about 6 months. the problem got worse
when I did some hp upgrades

2 Answers
41,750

TDolby answered 4 years ago

Without knowing what you did to add extra HP, we wouldn't know how to help. Rough idling is usually an indication of a misfire or a vacuum leak. Is the Check engine light on?

Mark helpful
18,805

munron answered 4 years ago

I agree. Not enough info. Have you scanned it for trouble codes. That's usually a good place to start looking.

Mark helpful

Your Answer:

Related Questions

  • what would cause a rough idle? 2 Answers

    I've been chasing the same problem on my 05 ss sc for about 6 months. the problem got worse when I did some hp upgrades

    2005 Chevrolet Cobalt SS Supercharged Coupe FWD

    -

    Maintenance & Repair

  • What is the cause of a rough idle when accelerating after recent car repairs? 6 Answers

    Last week I had to have a thermostat and cracked coolant tank replaced on my 06 Cobalt. A few days later and coolant system works fine, but there's a new "hitch" in my idle when accelerating with a ...

    2006 Chevrolet Cobalt LT Sedan FWD

    -

    Maintenance & Repair

  • What would cause this 3 Answers

    The engine, abs,traction control, anti theft lights came lights dimmed power steering went out and so did the radio drove it where I could park then it died . After awhile it started here and the...

    2007 Chevrolet Cobalt LT Sedan FWD

    -

    Maintenance & Repair

  • What would cause my fan not to run when I unplug the temperature censor 3 Answers

    What would cause my fan not to run when I unplug the temperature censor

    2009 Chevrolet Cobalt

    -

    Maintenance & Repair

  • what would cause the speedometer to quit 2 Answers

    while driving my 2006 cobalt my speedometer will quit working and it sounds like its gonna stall.but if you mash the throttle to the 7000 redline it will seem to move .if you stop and restart everyth...

    2006 Chevrolet Cobalt LS Sedan FWD

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet Cobalt Questions

CarGurus Experts

  • #1
    munron
    Reputation
    8,510
  • #2
    John Carson
    Reputation
    2,310
  • #3
    MoGo
    Reputation
    2,020
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Honda Civic
227 Great Deals out of 3,605 listings starting at $3,500
Used Chevrolet Impala
10 Great Deals out of 111 listings starting at $3,999
Used Chevrolet Malibu
36 Great Deals out of 824 listings starting at $1,499
Used Chevrolet Corvette
39 Great Deals out of 1,021 listings starting at $17,499
Used Chevrolet Colorado
24 Great Deals out of 1,321 listings starting at $8,900
Used Ford Focus
15 Great Deals out of 440 listings starting at $1,999
Used Toyota Corolla
137 Great Deals out of 2,181 listings starting at $1,990
Used Chevrolet Silverado 1500
172 Great Deals out of 5,498 listings starting at $4,000
Used Toyota Camry
41 Great Deals out of 899 listings starting at $1,888
Used Dodge Neon SRT-4
1 listing
Used Dodge Charger
25 Great Deals out of 478 listings starting at $6,995
Used Honda Accord
49 Great Deals out of 893 listings starting at $2,995

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.