Where should rpm needle be when I'm just sitting

Asked by Jul 31, 2015 at 10:35 PM about the 2009 Chevrolet Cobalt LS

Question type: General

Just wondering really. It's above 1.

5 Answers

135

I would expect it to be just below 1. However, the tachometer needle could be positioned a bit off and display higher RPMs than the engine is actually turning. Typically, GM cars idle at about 750-900 RPM depending on the load on the engine. If you think the engine sounds like it is running fast and/or you feel the vehicle lurch, jerk or shudder when the gear lever is moved into Reverse or Drive, the engine could indeed be idling faster than it should. If that is the case, I would be looking for a vacuum leak.

26,585

where is yours at?????

69,555

Sounds like you have a vacuum leak or bad IAC (Idle Air Control) valve. You're idle should be around 600 RPMs. One thousand is too high. HTH. -Jim

3,755

LEAVE GAP FOR COLD START, IF ITS ABOUT 1 FOR A WHILE AND THEN DROP TO +- 600 IS NORMAL

3,755

DIDNT READ THE QUESTION THROUGH, SORRY.... GO WITH ALL THE ABOVE.

Your Answer

Cobalt

Looking for a Used Cobalt in your area?

CarGurus has 3,653 nationwide Cobalt listings starting at $1,500.

ZIP:

Chevrolet Cobalt Experts

  • #1
    lightGear
    Reputation
    1,170
  • #2
    munron
    Reputation
    1,020
  • #3
    dandyoun
    Reputation
    960
View All

Related Models For Sale

Used Honda Civic
832 Great Deals out of 76,905 listings starting at $900
Used Ford Focus
736 Great Deals out of 53,698 listings starting at $1,495
Used Chevrolet Malibu
1,226 Great Deals out of 76,795 listings starting at $1,500
Used Chevrolet Impala
578 Great Deals out of 34,593 listings starting at $1,250
Used Ford Mustang
760 Great Deals out of 41,952 listings starting at $1,300
Used Chevrolet Camaro
434 Great Deals out of 31,716 listings starting at $2,395
Used Toyota Corolla
885 Great Deals out of 64,926 listings starting at $1,000
Used Honda Accord
1,086 Great Deals out of 61,705 listings starting at $999
Used Toyota Camry
1,103 Great Deals out of 70,451 listings starting at $750
Used Dodge Charger
435 Great Deals out of 27,752 listings starting at $1,650
Used Ford Fusion
1,067 Great Deals out of 76,046 listings starting at $895
Used Nissan Altima
1,090 Great Deals out of 74,303 listings starting at $875
Used Nissan Sentra
533 Great Deals out of 49,720 listings starting at $1,900

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.