Chevy Cobalt Forum banner
1 - 3 of 3 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter · #1 ·
Need help please? 05 cobalt 105,000 miles. Ran great! Let sit for 8 months and rat ate wiring harness. Got it replaced and now check engine light is on along with traction control light and is shifting hard. Please help?
 

·
Registered
2008 LT, 2.2L, auto
Joined
·
8 Posts
These also have a notorious issues with bad TCM grounds. Try taking a jumper cable or similar and ground one end to the housing and the other to the car chassis somewhere. If it goes away there's your issue, I know a lot of people instead of replacing the harness to the TCM will just run a perminate ground from the TCM to a bolt.
 
1 - 3 of 3 Posts
Top