I'd check the circuirts at the starter relay, when the problem occurs. B terminal is hot all the time, A terminal goes hot with the key in the crank position. Because ground for coil side of relay is controlled by the pcm, your security system might be an issue? Any testing at the relay, make sure the tranny is in park or neutral and the e-brake is set. When the problem occurs, did you try cranking in neutral?
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Wednesday, October 20th, 2010 AT 2:57 PM