Check Engine Light Due to Engine Misfire on Chevrolet Cobalt

The ignition module or an ignition coil may fail causing an engine misfire, the Check Engine Light may or may not illuminate. Diagnoses will be required to determine the cause and needed repair.

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Average mileage: 101,054 (15,000–219,500)
6 model years affected: 2005, 2006, 2007, 2008, more2009, 2010
92 people reported this problem
62 people shared problem details
Car stalled, restarted, no power and kept stalling. Dealer did so-called "diagnostics" and said I needed new spark plugs, thermostat replaced and fuel induction service, cost $769. Took to an independent mechanic, changed plugs because I told them dealer said needed done. Problem persisted. Independent investigated further and found the problem. Cost $290
The engine light would come on and go off all the time. Went in to get it fixed after Autozone guy thought if could be spark plugs but turned out to be engine coil. Just picked it up after getting fixed. You know with all the recalls and crap wrong with this car, I no wonder they quit making them. I am so ready to buy a Ford. This car is CRAP!!!!!!! What's worse is I gave up a perfectly never worked on Chevy Cavalier for this newer car. WHAT WAS I THINKING!!!!!????
car misfires and lunges when you come to a stop especially in real cold weather
My car did the same as all the others, stalled and misfired when slowing down and coming to a stop the first indication was that my head lights would dim and my car would have much less power then the stalling would begin, my check engine light never came on and the incidents seem to happen more frequently when it was colder outside but not always, my car definitely does not get the gas mileage that it should and seems to run with less power. Had my manifold cleaned out as they believed that it was clogged this improved the situation slightly as far as the stalling goes but I still have a car that is running powerless with crappy gas mileage and seems to be eating up oil but no leaks? Very dissapointed!
2007 Chevrolet Cobalt100,457
it starts to miss and ack like it is going to die. Then quits and comes back again.
2006 Chevrolet Cobalt104,000
Has not been fixed cannot afford it right now. Initially car was stalling, rough idle, surging & initially MAP & MAF sensors replaced, new air filter just in case & throttle body cleaned. Now check engine light is just flashing,stalling immediately, black smoke from exhaust, now misfiring & engine shaking. Don't know when it will be further repaired.
engine low idles when coming to stop. bad ticking noise when accelerating. eating oil as well as milky oil (not the head gasket or related). chevy pos!!!
replaced coil and module
The car wanted to stall while breaking for stops. I had a tune up one day. The same day it still wanted to stall after the tune up. Had it at BP their machine said it needed a mass air flow sensor. Same thing...wanted to stall. Went bk to BP then their machine said the lower mass air flow sensor...had it changed...same thing...wanted to stall...had the fuel filter changed...omg same thing...now the mechanic says it could be the coil pack...they're checking for one for a decent price....
Car engine would cut off while slowing down or at stop sign/light. Check engine light came on & had to pay for a full diagnosis to find out the coil pack needed to be replaced...then it was followed by needed a replacement of a catalytic converter...then the ignition recall followed by a replacement of the Starter. What a crappy vehicle :(
I was told that I needed to have my engine rebuilt and the ECM rplaced. The car is still having electrical problems. Told I needed the TCM replaced, and still have the problems with the electrical system.
misfire on 2&3
2006 Chevrolet Cobalt219,500
Was driving to doctors appointment and car started to hesitate and check engine light was blinking, barely made it to doctor, upon returning to my home did it again, I took it right to my mechanic. He diagnosed the problem as bad ignition coil and spark plugs. Over $200 to repair. This should be a recall. I was afraid for my life...
I have had multiple parts replaced,,TCM, Coil Pack, pollution thing. the list goes on. Now it is Coding misfire in number one and running extremely rough I am once again putting it in the garage on Monday to have the Camshaft pos sensor. I feel Chevy saw me coming. I have called and complained and like many others have been told that their is nothing they can do. They definitely don't care where their paychecks and their beachfront properties come from.
My service light for a Chevrolet 2008 colbalt came on for the air bag.Can I wait 3 weeks to get it fixed?
2006 Chevrolet Cobalt104,000
Chevy dealer costing 624.00
2006 Chevrolet Cobalt131,982
I had not experienced any ignition issues with my car, but when the 2014 recall notice was received I had the appropriate ignition switch recall work performed on my car. Following that, and/or perhaps because of increased mileage, I began to have problems with my Cobalt in 2015 and began incurring repair expenses. My car wouldn't start and check engine light was on. Then it started but did not have enough power to move it/run. So, I had to have it towed in. The shop said it had PO300 codes for random misfires. They found cylinders 2 and 3 were not contributing power due to a bad ignition module. So the ignition module had to be replaced. Because my spark plugs were worn I also had those replaced as a preventative measure. After driving it for a day, the car would hesitate when re-accelerating after stops, so I also paid for a new fuel filter at the recommendation of the repair shop. Even after that, the hesitation continued but I could not afford further diagnostics or repairs. Within one month of repairs my car lost complete power while I was in traffic. Luckily, other drivers had time/space to react and no one was hurt, but it could have caused a deadly accident. Due to finances, my brother checked the car over for me and cleaned the throttle body, as that is the only issue he could detect. It has run a bit better since then, but still with some hesitation. I worry it may lose power again but I cannot afford endless diagnostic, parts and labor expenses of trial and error repairs. Especially when I read online that many other Cobalt owners are having the same experience and being unable to get the concerns resolved despite multiple trips to mechanics.
2006 Chevrolet Cobalt120,000
Had this problem on an off for 2 years. No matter what i replace it comes back. This is the problem from hell. Keep getting 3rd cyinder misfire and random misfire codes. Replaced spark plugs, control module and pack, new cat converter, new head gasket... Oh the list goes on. And guess what? Still have this problem today!
Very low idle at stops it wants to stall. Lots of electric problems can't have anything in the trunk if driving at night because the headlights won't work.
Had code for engine misfire on cyl 1 Engine had miss at idle and sometime while driving. Replaced ignition module and coil assembly and car is fixed. Cost $80 for each part at salvos .
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