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Idle RPM problem - 765T 700 1987

posted by  Brickburner on  Wed Jul 28 15:17 CST 2004
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Hi all

Just tonight something strange happened to the idle rpm on my '87 765T. During driving downhill I was noticing the idle rpm was oscillating.

Later with the car stopped and shift in N the idle was at 1200-1400 rpm. With D but applied brakes the idle was at 800-900 rpm.

Briefly checked for any vacuum hoses disconnected but could not find anything obvious. Have not driven this car for more than a couple of thousand kilometers, newly bought it, but has never noticed this before.

Also, even if I don't know if this is related, the ACC usually gives me some amount of heat trough the defrost and floor vents even with pot temp wheel at min. Sometimes the distribution of air seems to be a bit "autocratic", not doing what it is supposed to do.

What could be the culprit here? I'm leaning towards some kind of a vacuum problem... But I hope someone more knowledgeable will show me the right path! :-)

Cheers,
Mats Johansson
Toronto, On






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New Idle RPM problem - 765T [700][1987]
posted by  Brickburner  on Wed Jul 28 15:17 CST 2004 >


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