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madding intermittent hesitation - AMM fail(ing?) - IAC 200 1988

AMM

I could understand the AMM failing and causing running problems if not a failure to start.

What I do not understand is it working and then not working.
If one of those little wires burns out or starts to burn out they don't regenerate (?).

Why would a failed AMM cause hesitation to come and go in such an extreme way?
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Pick-n-Pull Yard

I have a very bad selection of pick-n-pull yards around me.
Any recommended sources for new and used AMM? Are these still made?
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IAC

Remember the only other time I had this problem was a year ago and it was strongly suspected to be the IAC.
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Preheat hose flap

As far as the air box and preheat hose, I took the route, around 2005, of blocking the inlet after two thermostats had failed. My area rarely gets supper cold.






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