This is topic bad idle in forum Tech Talk at Northern California Ford Owners  .


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Posted by rnowacki (Member # 686) on :
 
What's the sensor that usually goes out and causes bad idle? Car is dying every time I come to a stop and "hunts" for 30+ seconds on a cold startup, back and forth between 500 and 1200 RPMs until it finds 850. Warm startups it will just die unless I get on the gas a little.
 

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Posted by JohnB (Member # 969) on :
 
IAC valve. Bolted directly on the side of your throttle body. Pull it off, clean it out really well with carb or brake cleaner. It's probably full of carbon.
 

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Posted by rnowacki (Member # 686) on :
 
That's right... OK, I'll start there. Thank you.
 

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Posted by white1990stang (Member # 2307) on :
 
also try checking your tps with a volt meter. it should be at like .98, nothing over 1
 

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Posted by six 5.0 (Member # 3153) on :
 
Also check for vacume leaks
 

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Posted by jaybquick (Member # 4286) on :
 
clean the throttle plate too with carb cleaner. As a last resort clean the MAF too. Do you have a K&N filter.
 

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