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I got the new LS3 running today in my '06 A6 coupe. I am having a problem with the starter not engaging properly. It will engage the teeth on the flexplate, try to turn until it times out and then the starter will not disengage from the flexplate. I pulled all the plugs and turned the motor over by hand and it didn't seem any more difficult than normal. GM parts rep says same starter part number for the '06 thru '10 so I'm guessing not a compatibility issue. Do I need to shim the starter? I did a search and found nothing in C5 or C6 tech...
Never Mind...
I found the problem - I had taken only one picture during engine disassembly and removal - it just happened to be the one below of the starter wiring
The ground in the red arrow was pushed back behind the bell housing and did not get attached:
Problem solved!
Last edited by vetracer; Jan 25, 2010 at 08:11 PM.
I got the new LS3 running today in my '06 A6 coupe. I am having a problem with the starter not engaging properly. It will engage the teeth on the flexplate, try to turn until it times out and then the starter will not disengage from the flexplate. I pulled all the plugs and turned the motor over by hand and it didn't seem any more difficult than normal. GM parts rep says same starter part number for the '06 thru '10 so I'm guessing not a compatibility issue. Do I need to shim the starter? I did a search and found nothing in C5 or C6 tech...
Never Mind...
I found the problem - I had taken only one picture during engine disassembly and removal - it just happened to be the one below of the starter wiring
The ground in the red arrow was pushed back behind the bell housing and did not get attached: