Cylinder 1 Misfire at Idle


Asked by Aug 09, 2012 at 07:41 AM about the 2007 Chevrolet Cobalt

Question type: Maintenance & Repair

Cylinder 1 is misfiring at idle.Have changed plug,coil and injector.This problen showed up after head removal and replacement.

4 Answers


Check the compression on that cylinder. If it's low, Could be a defective head gasket. Also, when you remove the spark plug, check it for wetness from coolant. Another sign of a defective head gasket. HTH. -Jim

3 out of 3 people think this is helpful.
Jerome Baldwin
125 link to website, gives you a few ideas to wut may be the cause, or perhaps jus take to a mechanic if you don't find any issues related.

1 out of 1 people think this is helpful.

I know its been a while, but i am having the same problem did u ever find an answer? thanks

Jean Smit

i had that problem with my 2007 at 75,000 miles on the 4th cylinder take it to a gm dealer ship they will probably replace the engine mine was still under 100,000 miles and it was replaced at free of charge otherwise it would have be 5 grand. we had changed plugs and coils etc and it had had like 65,000 misfires and there was some thing wrong with the engine from manufacturing

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions


Looking for a Used Cobalt in your area?

CarGurus has 5,521 nationwide Cobalt listings starting at $1,800.


Search Chevrolet Cobalt Questions

Chevrolet Cobalt Experts

#1 lightGear
Reputation 1,070
#2 FordNut
Reputation 1,000
#3 dandyoun
Reputation 890
View All

Related Models For Sale

Used Honda Civic"
1,148 Great Deals out of 59,092 listings starting at $995
Used Chevrolet Malibu"
1,151 Great Deals out of 73,044 listings starting at $695
Used Ford Focus"
1,244 Great Deals out of 56,705 listings starting at $1,495
Used Chevrolet Impala"
938 Great Deals out of 35,697 listings starting at $1,500
Used Honda Accord"
1,263 Great Deals out of 78,694 listings starting at $1,400
Used Ford Mustang"
737 Great Deals out of 41,065 listings starting at $900
Used Toyota Corolla"
1,417 Great Deals out of 67,100 listings starting at $1,295
Used Nissan Altima"
1,360 Great Deals out of 87,464 listings starting at $1,095
Used Toyota Camry"
1,608 Great Deals out of 98,371 listings starting at $895
Used Ford Fusion"
1,437 Great Deals out of 78,538 listings starting at $1,450
Used Honda Civic Coupe"
348 Great Deals out of 16,521 listings starting at $799

Used Cars For Sale

2010 Chevrolet Cobalt For Sale
32 Great Deals out of 941 listings starting at $2,000
2009 Chevrolet Cobalt For Sale
26 Great Deals out of 933 listings starting at $1,995
2008 Chevrolet Cobalt For Sale
13 Great Deals out of 976 listings starting at $1,800
2007 Chevrolet Cobalt For Sale
10 Great Deals out of 1,067 listings starting at $2,000
2006 Chevrolet Cobalt For Sale
11 Great Deals out of 1,080 listings starting at $2,300