Idle and running issues

Asked by Jun 14, 2017 at 01:23 PM about the 2005 Chevrolet Cobalt LS Sedan FWD

Question type: Maintenance & Repair

Okay I have an 05 Chevy Cobalt automatic 2.2 liter
engine when I go to start it up and move it from
Park to drive the car idles from 1 RPM to 1/2 RPM
all the way to 0 and shuts off temperature goes up
slightly in the 200s what could be my problem I've
replaced map sensor spark plugs spark wires
module ignition control sensor coil pack and it's
still coming up with a code that states barometric
pressure sensor I reset the computer and it runs
fine for a while when I go to stop at a stop light
stop sign the RPMs drop from 1 to 1/2 RPM
almost to zero and goes back up to 1 RPM when
it's running ok can someone please help me figure
out what's going on

2 Answers

134,275

If the check engine light is on have the codes read and post them here. FYI - The numbers on the tachometer are thousands.

8,955

check your coolant to see if it is full. check when cold for safety. temps are kinda high.. unless u ideled for 20+minutes. look at coolant. should be orange . also.. like the above have diagnostic codes read from your computer at aaa or pepboys or o'reily's . good luck.

Your Answer:

Chevrolet Cobalt Experts

  • #1
    munron
    Reputation
    1,500
  • #2
    dandyoun
    Reputation
    1,100
  • #3
    MoGo
    Reputation
    1,030
View All

Related Models For Sale

Used Chevrolet Malibu
34 Great Deals out of 1,757 listings starting at $2,995
Used Honda Civic
129 Great Deals out of 4,714 listings starting at $1,888
Used Ford Focus
53 Great Deals out of 2,534 listings starting at $2,284
Used Chevrolet Impala
23 Great Deals out of 926 listings starting at $2,400
Used Ford Mustang
50 Great Deals out of 1,531 listings starting at $2,900
Used Honda Accord
40 Great Deals out of 1,817 listings starting at $2,616
Used Toyota Corolla
78 Great Deals out of 4,247 listings starting at $3,450
Used Toyota Camry
31 Great Deals out of 1,929 listings starting at $1,750
Used Chevrolet Silverado 1500
82 Great Deals out of 9,460 listings starting at $3,995
Used Honda Civic Coupe
31 Great Deals out of 958 listings starting at $3,595
Used Nissan Altima
39 Great Deals out of 1,324 listings starting at $1,995

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.