[T3] Weird Idle Dips, Suggestions?

Toadpipe the.toadpipe at gmail.com
Thu Feb 23 17:00:43 PST 2012


Right, sounds like a good suggestion, I'll go fire it up and adjust the 
idle and let you all know.

Toadpipe


On 02/23/2012 04:58 PM, Jim Adney wrote:
> On 23 Feb 2012 at 16:47, Toadpipe wrote:
>
>> For several years now my 69 square does the strangest thing when idling
>> for about the first five or so minutes after starting up then runs
>> normally.  It revs up to idle then down to near stall then right back up
>> with about one second between the peaks.  Does this only while idling,
>> runs normal if I touch the throttle at all.  What could fix this?  Is it
>> a sensor issue or something?  I can't seem to figure it out, but the up
>> side is it doesn't seem to be a huge issue, it's just annoyed me for far
>> too long to allow it to continue.
> It's most likely that your idle speed is set just a bit too high.
> What you're describing is the loping behavior that's common if the
> any time the idle speed gets too high. The problem goes away when the
> engine warms up and the aux. air regulator (AAR) closes.
>
> Your description indicates that the AAR is working properly.
>




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