2000 SL1 Idling high

[bearcat500]

My 2000 SL1 idles high at various times. Sometimes it idles correctly and
other times it will fluctuate all the way up to 1800 rpm's. Anyone have a
clue of what might be causing this?

Thanks

 

[Bill ing]

My 1997 did that to me about 2 years ago and especially when the weather was
cold and wet..

A new idle air control valve did the trick for me at about $35 CAD from
Saturn. Although my repair manuals said to not pull the valve out with my
fingers, if I didn't at least pull it out part way, the engine would race up
to 5000RPM.

While you've got the throttle assemble apart, it's also a good idea to stick
it in a pail and spray throttle body cleaner all over it to get rid of the
varnish.

Regards,

Bill

 

[richard hornsby]

My 98SL2 would idle high at seemingly random times. A previous thread
discusses the issue:

http://groups.google.com/[email protected]&rnum=26

Short version:

The throttle position sensor was bad. Took 8 (IIRC) trips to the
dealership before I could get the TPS to act up for them. They changed
a bunch of sensors before figuring out it was the TPS.

I've never had the problem since they replaced the TPS.

-rj

 

[milkdude971]

welll here is some more help ..........the intake manifold gasket could be
blown ..and your air gas mixture is too high ..therefore causing a high
idle....or u have a vaccum leak somewhere ....but mine was an intake
manifold gasket ...23$ cad. and 5 hours labor on my part . hope it helps.
Robert

 

[Blah blah]

welll here is some more help ..........the intake manifold gasket could be
blown ..and your air gas mixture is too high ..therefore causing a high
idle....or u have a vaccum leak somewhere ....but mine was an intake
manifold gasket ...23$ cad. and 5 hours labor on my part . hope it helps.
Robert

How long ago did that happen and the camshaft code get set? Something
could have happened to the cam sensor during the intake repair.