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Wild increase in RPM's when starting 850

posted by  tadslc on  Wed Nov 27 06:08 CST 2002
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last visit: Fri Apr 20 04:52 CST 2001
[RELATED]

My 1995 850 Turbo wagon has an odd problem I haven't been able to trace. On occasion, as soon as the car starts the rpms will reach 2000 to 2500 rpms for a few seconds then settles down to a normal idle. This isn't normal. My foot is NOT on the accelerator pedal either.

Any idea of why?

Thanks
tadslc








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Wild increase in RPM's when starting

posted by  Axel on  Thu Nov 28 02:28 CST 2002
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last visit: Mon Mar 12 06:12 CST 2007
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I dont know if the 850 has the idle air intake bypass solenoid or not. My 84 has one
and if it sticks open this will happen. I have a S-70 also.. not sure if it has
one... hasnt broke yet so havent had to look! ;-)
--
vw bus site - http://www.geocities.com/vw_bus_74/index.html








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Wild increase in RPM's when starting

posted by  JimmyP on  Wed Nov 27 08:17 CST 2002
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Ours did the same thing, it was a vacuum leak in one of those rubber elbows. Luckily a cheap fix when you find which one is leaking








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Wild increase in RPM's when starting

posted by  someone claiming to be john on  Thu Nov 28 21:05 CST 2002 [RELATED]

mine does the same thing stated a while back, if i crank it a couple of times but not let it start and then start it normally it doesn't over rev!!!!

if it was a vacumn leak wouldn't the ecu light be on????

cheers







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