94 Acclaim PARTLY fixed, need more ideas

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clifto - 24 Feb 2008 17:33 GMT

Summary to date: for a month or three the car would die quietly at stop
lights. In the last week the car started to run very badly and throw a code.

Fixed: the latest problem. I noticed coolant circulation problems and got
suspicious of the radiator cap, replaced it. Now the car doesn't have its
fits of running very badly.

Still to go: car dies quietly at stop lights, very occasionally. It appears
this happens after five to ten minutes of running steadily at a good speed
(40 MPH or better) followed by a stop. Car will also display "check engine"
light out of the blue *without* stalling, code reader gives "MAP sensor
output voltage too high".

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Mike - 26 Feb 2008 02:38 GMT

> Summary to date: for a month or three the car would die quietly at stop
> lights. In the last week the car started to run very badly and throw a code.
[quoted text clipped - 5 lines]
> Still to go: car dies quietly at stop lights, very occasionally. It appears
> this happens after five to ten minutes of running steadily at a good speed

Try cleaning the throttle body, if it is dirty it will cause that problem.

> (40 MPH or better) followed by a stop. Car will also display "check engine"
> light out of the blue *without* stalling, code reader gives "MAP sensor
> output voltage too high".

I would just replace the MAP sensor. They are cheap and the used to fail
quite often back then.

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