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

115

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.

20,835

where is yours at?????

63,275

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

3,325

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

3,325

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

Your Answer

Add photo

Related Questions

Cobalt

Looking for a Used Cobalt in your area?

CarGurus has 3,866 nationwide Cobalt listings starting at $1,700.

ZIP:

Search Chevrolet Cobalt Questions

Chevrolet Cobalt Experts

#1 lightGear
lightGear
Reputation 1,090
#2 dandyoun
dandyoun
Reputation 910
#3 munron
munron
Reputation 900
View All

Related Models For Sale

Used Honda Civic
478 Great Deals out of 80,892 listings starting at $558
Used Chevrolet Malibu
764 Great Deals out of 88,065 listings starting at $1,900
Used Ford Focus
519 Great Deals out of 55,272 listings starting at $1,495
Used Chevrolet Impala
544 Great Deals out of 28,509 listings starting at $700
Used Chevrolet Camaro
136 Great Deals out of 35,103 listings starting at $1,995
Used Ford Mustang
334 Great Deals out of 45,576 listings starting at $2,000
Used Honda Accord
679 Great Deals out of 82,246 listings starting at $500
Used Toyota Corolla
740 Great Deals out of 74,267 listings starting at $1,991
Used Nissan Altima
779 Great Deals out of 77,240 listings starting at $470
Used Toyota Camry
826 Great Deals out of 90,654 listings starting at $1,300
Used Ford Fusion
951 Great Deals out of 79,235 listings starting at $900
Used Honda Civic Coupe
134 Great Deals out of 18,092 listings starting at $1,500

Used Cars For Sale

2010 Chevrolet Cobalt LS For Sale
12 listings starting at $3,299
2009 Chevrolet Cobalt LS For Sale
87 listings starting at $2,990