If this is a condition that has crept up on you over time then I have two
thoughts:

    Vacuum leak,

       or

    too-rich mixture setting.

Check for vacuum leaks first.  First, do a visual inspection for any
obvious loose, cracked or missing hoses.  You might even remove the
bigger hoses and check then out by blowing throught them while plugging
the far end.  Hoses that _look_ OK can still leak.  Remove and check the
large intake hose to the throttle body too; it's hard to check this one
any other way.  If nothing turns up, then step two is to do a more
thorough test.  I like using  soapy water and a compressor since it's
safer than using flamable gases.  Replace any suspect hoses and/or vacuum
lines.  You might even go so far as to use hose clamps on some of the
connections.

On Tue, 10 Mar 1998, Andrew Jenkins wrote:

> I have an 86 Syncro with an idle problem.
> At first start, idle is about 1400. Drive down the road to the first
> stop sign and it idles at 2000. A quick blip of the throttle and it
> will slowly drop to about 1400.
>
> After it warms up, it will idle the majority of the time around 1200,
> and about 10% of the time, it will drop to the correct value of
> 850-900.

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Tom Young/Beth Young          young@sherlock.SIMS.Berkeley.EDU
Lafayette, CA  94549
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