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Erratic idle only when brake-pedal depressed... 200 1975

posted by  pierre on  Mon Dec 3 10:55 CST 2007
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last visit: Fri Oct 10 10:49 CST 2014
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Hi all,

from the little time I have had to research the subject, I haven't found a definite explanation for my following idle problem:

- on my 1975 Volvo 245, the idle is generally fine and stable. When I apply the brake pedal and keep it depressed, the idle becomes very erratic, though.

Can someone help me pinpoint exactly what I should fix/replace to cure the problem: whole booster, one-way valve or...?

I do have a used replacement booster on hand if needed.

Many thanks in advance.





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New Erratic idle only when brake-pedal depressed... [200][1975]
posted by  pierre  on Mon Dec 3 10:55 CST 2007 >


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