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Hot Stall today ... ECU? 200 1991

posted by  stevepenniman on  Mon Mar 14 20:42 CST 2011
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last visit: Tue Sep 2 14:22 CST 2014
[RELATED]

My 84 had the hot stalling problem since I got it in 2003, and the PO said it had done it for a long while. We're talking 8-10 years, at least. It would start to stumble and then bog way down, but keep going at 10-15MPH. Long hard driving in hot weather would bring it on. Or long hard driving and then a traffic jam it L.A. on a hot day. Mine. too, would always go again once it cooled off.

The problem is finally gone since I replaced the ECU, (and lot's of suspect things got replaced over the years) The ECU's the unit under the hood by the windshield washer, correct? (And the ICU is the one behind the foot side panel, passenger side?)

I'm thinking you should try the junk yard swap like I did. Now I can travel in the summer and stop more when I feel like it, not when the car tells me too. I did get some nice breaks I didn't know I needed a couple of times, though!

PS– I just saw you are thinking fuel pre-pumps. I put the more robust unit from a 740 in mine to try to fix the problem. No effect.

Steve






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