Originally posted by steener:
Still, about 15- 20,000 kilometres later, it was doing it again. This time, just cleaned the TB, and that worked for a few months. When the behaviour returned, cleaned the TB again, and the revs returned to normal range. (actually, they're a bit low lately, but that's another story).
I guess this falls into the "for what it's worth" category, since Ford techs have never been able to explain how a dirty TB would cause this, and if so, you'd think it would be a lot more common, since I'm sure SVT owners don't all clean their TBs every 10,000 miles.
I bet some of the cleaner was making it into the IAC and unsticking it. These sorts of reving problems are almost always a sticking or malfunctioning IAC valve.
Take the IAC off and clean it. It may work, it may not. A new one is in order if not.
-Lance
Lance Kinley
CEG Webmaster
95 SE, "Cassandra"
10 years!
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