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Too hot to start?

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Old Jul 11, 2019 | 03:41 PM
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Default Too hot to start?

This sounds dumb as hell, but three days in a row now. I have an 89 m6. It starts just fine in the morning to go to work, but after work when it's about 95° out it doesnt want to do anything. As in, wont crank over. The dash lights up fine. If I put the windows down and air it out for awhile, it starts normally. I think the heat in the cabin is affecting a switch somewhere, clutch switch maybe or ignition switch? The security light doesnt flash unless the doors are open, so I dont think it's the VATS. Any ideas?
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Old Jul 11, 2019 | 08:53 PM
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If the security light is steady lit with key in the ON position, then yes, it's vats problem.
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Old Jul 12, 2019 | 12:35 AM
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Try taking a good erasure to each side of the "chip" in the key.
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Old Jul 12, 2019 | 07:24 AM
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Originally Posted by 1993C4LT1
If the security light is steady lit with key in the ON position, then yes, it's vats problem.
It doesnt come on. It only flashes when a door is open. Doors closed, its off.
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Old Jul 12, 2019 | 08:46 AM
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My guess would be starter related, since you say it doesn't crank when ambient high temps.
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Old Jul 12, 2019 | 09:34 AM
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Originally Posted by 1993C4LT1
My guess would be starter related, since you say it doesn't crank when ambient high temps.
That was what I was focusing on - having experienced that before...UNTIL he said that after he opens the windows and airs it out - i.e., cools down the interior, it will start normally. That, eliminates (?) the starter, at least for the time being. methinks.

I think I'd refer to the FSM and start probing the start circuit: divide and eliminate! (Oh, intermittent problems are sooooo much more challenging than hard failures!)
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Old Jul 13, 2019 | 03:05 PM
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Originally Posted by Paul Workman
That was what I was focusing on - having experienced that before...UNTIL he said that after he opens the windows and airs it out - i.e., cools down the interior, it will start normally. That, eliminates (?) the starter, at least for the time being. methinks.

I think I'd refer to the FSM and start probing the start circuit: divide and eliminate! (Oh, intermittent problems are sooooo much more challenging than hard failures!)
I thought about a hidden starter button somewhere.
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