Idle dips low breifly after winding down

[pk2]

I'ts probably a vacume leak or somthing but after driveng along at 3 k, pop out of gear and let it drop to idle and it brifly dips to about 4-500 rpms before it pops back up to a normal idle range.

Ring any bells, ideas, anything common? or do I just need to hunt it down? (No CEL)

Thanks PK

[yimmy149]

Might try cleaning the throttle body? Car might have a hard time locating a good idle position if it's gummed up.

[pk2]

Originally Posted by yimmy149

Might try cleaning the throttle body? Car might have a hard time locating a good idle position if it's gummed up.

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Thanks, that's somthing to look at. It's been years since anybody has been back there, namely myself. Hardly drive it. I've forgotten all the usual suspects.

Regards, PK

[blue2000s]

What year is your car? The cabled throttle cars have an idle air control valve thas supposed to maintain idle (of all things). It may be on it's way out.