2006 cobalt lt2 2.2 ecotec cranks but wont start
September 12th, 2018, 2:53 AM
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2006 cobalt lt2 2.2 ecotec cranks but wont start
Ok so here is the gist of it, my mother had a 2010 cobalt with the 2.2, but somehow something caused the all the rocket arms for the intake valves to shatter. Needless to say she loves the cobalts. So I was able to pick up 2006 cobalt lt2 for $400. 2.2 ecotec. The security light was on and the immobilizer wires were cut. The guy I bought it from from was gonna race it. So i got it home, pulled the immobilizer and ignition from the 2010 and installed it. Did the 30 min relearn and security light went off. But still no dash lights (engine light, seat belt light, abs, etc.)the rest was on. So I pulled the fuse box and found a circuit that had burned in two. I repaired the circuit by soldering a jumper wire. Dash lights all came on. Tried starting, turns over but wont fire. I've since replaced the computer(I had it flashed to my VIN number), ignition control module, the coil, spark plugs, new crankshaft sensor, and replaced coolant sensor. Still turns over but wont start. Also the airbag lights are on, and the information center says service airbag. But using the buttons to the information center they will not return the Info center back to odometer, it will just keep flashing service airbag. I'm at my wits end ready to junk it and tell my mother we gotta find something different. Anyone have any ideas? Is there a list of possible reasons for crank no start or some type of troubleshooting guide?
September 12th, 2018, 4:08 AM
#2
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Ok so here is the gist of it, my mother had a 2010 cobalt with the 2.2, but somehow something caused the all the rocket arms for the intake valves to shatter. Needless to say she loves the cobalts. So I was able to pick up 2006 cobalt lt2 for $400. 2.2 ecotec. The security light was on and the immobilizer wires were cut. The guy I bought it from from was gonna race it. So i got it home, pulled the immobilizer and ignition from the 2010 and installed it. Did the 30 min relearn and security light went off. But still no dash lights (engine light, seat belt light, abs, etc.)the rest was on. So I pulled the fuse box and found a circuit that had burned in two. I repaired the circuit by soldering a jumper wire. Dash lights all came on. Tried starting, turns over but wont fire. I've since replaced the computer(I had it flashed to my VIN number), ignition control module, the coil, spark plugs, new crankshaft sensor, and replaced coolant sensor. Still turns over but wont start. Also the airbag lights are on, and the information center says service airbag. But using the buttons to the information center they will not return the Info center back to odometer, it will just keep flashing service airbag. I'm at my wits end ready to junk it and tell my mother we gotta find something different. Anyone have any ideas? Is there a list of possible reasons for crank no start or some type of troubleshooting guide?
BTW, you might want to make sure that the electrical assist power-steering was updated by GM, to the newer version.
The 2006 had lots of issues with the new electrical power-steering, I believe that GM issued a recall to repair the issue, but not all people do so.
September 12th, 2018, 4:04 PM
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I'll check for codes when I get home. Also how would I know if power steering was updated?
Last edited by Benlalden1; September 12th, 2018 at 4:05 PM. Reason: Adding to it
September 14th, 2018, 11:08 PM
#4
not sure if theft issues will no crank or crank no start for this model...is the theft light on? if yes, check for theft codes...you will need a full function scan tool that can access body codes...a code reader will not access body codes.
you may have 2ways to go about this if its a theft issue.....#1-you may need to get new keys cut and programmed. once transponder keys are programmed to a theft deterrent module...you can't swap them to another....#2- swap the theft deterrent module also and have it programmed by gm.... you can't do this yourself without access to their programming.
you can check for outstanding recalls by calling any dealership and providing your vin or go here https://www.nhtsa.gov/recalls
you may have 2ways to go about this if its a theft issue.....#1-you may need to get new keys cut and programmed. once transponder keys are programmed to a theft deterrent module...you can't swap them to another....#2- swap the theft deterrent module also and have it programmed by gm.... you can't do this yourself without access to their programming.
you can check for outstanding recalls by calling any dealership and providing your vin or go here https://www.nhtsa.gov/recalls
Last edited by tech2; September 14th, 2018 at 11:11 PM.