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Subject Engine idling low and stumbling in hot weather
     
Posted by JessmanR24 on June 08, 2008 at 5:48 PM
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Message It was 100 degrees today in North Carolina, and my Z did not like it one bit. I have a 93 NA, automatic. Here's what happened:

Drove it about 2 miles round trip to a nearby store. Everything was OK. Half an hour later, I wanted to drive somewhere else, so I started up the engine and it started fine, but immediately began stumbling and only idling at around 500 RPM (usually idles around 900 RPM), making the whole car shake lightly. I decided to drive it around the neighborhood just to test it out, and every time I came to a stop, the engine would go back down 500 RPM and feel like it was almost stalling. I decided to not risk it, and went back home.

My Z has a history of problems in extreme heat. Last summer, after driving an hour in 95+ degree heat, it wouldn't shift past 2nd gear (automatic transmission). This may be a unrelated problem, though.

Any suggestions would be greatly appreciated. Thanks.

     
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