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Throttle Body Cleaning 900 1995

uid 11021's pic
posted by  dewfpo on  Wed Oct 20 14:53 CST 2004
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last visit: Thu Oct 23 18:34 CST 2014
[RELATED]

1995 964 154,135 miles

The ol' girl has developed a very rough neutral idle the last couple of days. No other symptoms. Starts fine, plenty of pep, idle smooth in drive, very rough in neutral. Listened to the exhaust, no dead cylinder, no MIL. Sometimes she idles smooth in neutral but once hot, she idles rough. In fact, she will idle smooth and then you feel the instant change to rough idle.

We bought her used with 109k miles on the clock. I'm sure the throttle body has never been cleaned. The TB looks pretty bad on the outside (oily grease).

Are there any do's/don'ts from folks that have cleaned her out?

Does regular carb cleaner work o.k.?

Any thoughts are always appreciated.

DEWFPO

The thought did cross my mind about a possible intake manifold leak but the rough idle isn't there all the time and you can feel it 'kick in' once it reaches a certain temp.
--
1998 S90 071,245 and 1995 964 154,100






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New Throttle Body Cleaning [900][1995]
posted by  dewfpo  on Wed Oct 20 14:53 CST 2004 >


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