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Engine idles too fast 700

posted by  Alex861 on  Tue Jun 2 19:23 CST 2009
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last visit: Sat Oct 3 16:36 CST 2009
[RELATED]

The engine idles too fast (~1200 rpm) in my 1985 740GLE (non-turbo). I could not adjust idle speed down using the plastic know adjustment; it has no effect.

I also noticed that when the ambient temperature is low 50-60 F, the idle is faster (~1200rpm). Conversely, in the summer time (outside temp in the 90's)the idle is ~1000-1100rpm.

a) Is it possible to change the engine temperature sensor without removing the intake manifold?
b) Has anyone experienced this problem?
c) Has anyone fixed this idle problem?
d) Is there a procedure for its repair?

thank you for helping,

Alex861





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