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Old 04-20-2011, 03:26 PM   #14
xxxJohnBoyxxx
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Join Date: Dec 2007
Location: Gulfport, Florida
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Quote:
Originally Posted by blowin 4 View Post
When test the coil I have 12.53 volts when I crank drops to 9.5 then steady 10.6. Not good!
Mine drops in the low 10 volts when cranking but no start issues.

Are you running after market coils?

Make sure you check your head temp sendor cause it sounds to me like your car is getting too much enrichment on hot start which would be the head temp sendor. ***The coil low voltage issue would cause issues with cold starts too.***

Another thing maybe a bad starter... check the voltage on a cold start and if it is much higher then your starter is bad and drawing too many amps when it is hot. I've had a bad starter when it was hot it would draw big amps due to a warped armature this was not a BMW but can happen to any starter. If the starter has low voltage on a cold start and starts the car fine then you need to go to my head temp sensor therory.

Last edited by xxxJohnBoyxxx; 04-20-2011 at 03:35 PM.
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