2007 Coupe Electrical Problem
Thread Starter
Advanced
Joined: Jun 2011
Posts: 50
Likes: 0
From: Grand Rapids Michigan
2007 Coupe Electrical Problem
I have an intermittent electrical problem on my 07 Coupe. The fuel, oil pressure, active control, and coolant temp gauges all fail at once. Then, of course chimes start and messages scroll regarding low fuel, check engine, traction control/abs failure ect. Usually after 10-15 minutes of continuing to drive the problem resolves itself and all is normal again. Had the car to the Chevy dealer last summer = tech stated diagnostics indicates modules "blaming each other" for the problem. Tech asked I bring in when problem is occurring. Two days ago problem surfaced again, when I parked and shut off car for 15 minutes and returned - no start and check engine icon appeared. Back to dealer on a flatbed = car started second trial. Tech stated can't find problem as all checks out good with diagnostics. I agreed to his cleaning and lubing with conductive grease all 20 + module connections at a cost of $350.
Has anyone experienced this problem...does anyone have tips on a fix. This is getting expensive quickly!
Has anyone experienced this problem...does anyone have tips on a fix. This is getting expensive quickly!
Le Mans Master
Joined: Dec 2004
Posts: 5,492
Likes: 807
From: West coast CA
I have an intermittent electrical problem on my 07 Coupe. The fuel, oil pressure, active control, and coolant temp gauges all fail at once. Then, of course chimes start and messages scroll regarding low fuel, check engine, traction control/abs failure ect. Usually after 10-15 minutes of continuing to drive the problem resolves itself and all is normal again. Had the car to the Chevy dealer last summer = tech stated diagnostics indicates modules "blaming each other" for the problem. Tech asked I bring in when problem is occurring. Two days ago problem surfaced again, when I parked and shut off car for 15 minutes and returned - no start and check engine icon appeared. Back to dealer on a flatbed = car started second trial. Tech stated can't find problem as all checks out good with diagnostics. I agreed to his cleaning and lubing with conductive grease all 20 + module connections at a cost of $350.
Has anyone experienced this problem...does anyone have tips on a fix. This is getting expensive quickly!
Has anyone experienced this problem...does anyone have tips on a fix. This is getting expensive quickly!
Melting Slicks
Joined: Jan 2005
Posts: 2,326
Likes: 5
From: louisville "derby city" kentucky
clean and check tightness of the bat + at the starter solenoid. check ALL grounds. you would be suprised at the ones i have fixed with problems at these connections...................
Thread Starter
Advanced
Joined: Jun 2011
Posts: 50
Likes: 0
From: Grand Rapids Michigan
Thanks for the info Torquetube, RickT and Cranky. Got the machine back from the dealer tonight...runs fine SO FAR. The tech supposedly cleaned all module connections and applied dielectric lubricant. Also checked batt and starter solenoid terminals and all grounds. Battery check was very good. There is a service bulletin #09-06-03-004D regarding intermittent no crank/no start module communication, warning lights...diagnosing and repairing fretting corrosion on 2011 and prior GM passenger cars and trucks. Fix is to apply dielectric lube. We'll see if it works.
Last edited by steve9107; Jun 15, 2011 at 09:16 PM.
Race Director
Joined: Dec 2005
Posts: 11,858
Likes: 107
From: God's Country, ID
If the problem resurfaces check the starter selanoid to be sure the plastic around the terminal isn't cracked. After 3yrs or so the selanoid is toast from the heat. Most techs are too lazy to remove the exhaust manifold to actually view the starter up close and see if the selanoid is bad. They just stick a socket on the terminal nut to check if it's snug and then move on.
