Quick Q

This is the place to ask questions about your engine components like cams, valves, pistons… just anything that is generally "engine" specific. This also includes questions about exhaust systems such as exhaust manifolds, piping size, mufflers, ect...
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Notanexit92
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Quick Q

Post by Notanexit92 » Wed Aug 31, 2011 4:59 pm

Alright when going about highway speeds to a stoplight at around 55 or over, and I shift into neutral, the rpm goes up quite a bit from 2200rpm to about 3500 and then goes down to idle rpm after a second, I have no idea what that would be... A vaccum leak would be more apparent right?
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occasional demons
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Re: Quick Q

Post by occasional demons » Wed Aug 31, 2011 7:50 pm

Notanexit92 wrote:Alright when going about highway speeds to a stoplight
Are you coming to a complete stop first?

If not the IAC may be keeping the RPM's up while moving. Tho that is a bit excessive.
Bill
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2000 Neon MTX swap with '02 R/T PCM
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ZeroChad
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Post by ZeroChad » Wed Aug 31, 2011 7:59 pm

I had the same problem when I first had my car. Read this thread.
viewtopic.php?t=24495
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