Question: '89 200 FWD low idle

[Ti Kan]

Cecilio Cerdan writes:
> My '89 200 FWD is lately having low idle when stopped in traffic (around
> 850-900 rpm), and sometimes sounds like it's going to stall. Also the belts
> sound like they're slipping.  Is there an (easy) way of putting the idle up
> or is this covering something more important?.

Don't just turn up the idle adjustment screw to mask this problem.
Probably the idle stabilizer valve is gunked up and needs to be cleaned.
Also, check the idle position switch on your throttle body to make sure
it's making contact when the throttle is closed.  When all is working
well, the idle stabilization system should keep the idle speed at a rock
steady 750rpm or so.

-Ti
2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
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