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Won't crank when warm.....!?
Posted by DavidG [Email] (more from DavidG) on Mon, 2 Apr 2001 10:04:54
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I have a 1984 900S which starts instantly when you turn the key...as long as the engine is cool, and the ambient temperature is below about 70 deg F.
But; when the engine is thoroughly warm (operating temperature), AND the outside temp is warm, a turn of the ignition key results in dash lights, fuel pump sound, everything normal except the starter doesn't turn. It's as if a relay is shutting off the starter when hot. At this point the car starts easily by the push method, so the problem is in the starting circuitry. It will easily start again on a warm day after cooling down for a few hours. And it will start easily all day long when the weather is cool/chilly. The car does not overheat or run hot. The battery, starter, and battery cables are new.
I was thinking it might be the ECU (being affected only when its' temperature reaches a certain level). Are there other relays or switches that might cause this behavior?
Any suggestions/advice/appropriate humor would be greatly appreciated.
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