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1991 Volvo 940 Turbo High Idle Cold or Warm 900

posted by  spook on  Mon Feb 22 05:49 CST 2016
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last visit: Fri Oct 24 08:06 CST 2014
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Dear mphilleo,

Hope you're well. The Idle Air Control Valve has failed (IACV). Installation of a spare, "known good" IACV, should produce a steady idle at 600-700 RPM. The clue: cleaning the IACV made no difference and clamping the hose to the IACV corrects the problem.

Hope this helps.

Yours faithfully,

Spook






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New 1991 Volvo 940 Turbo High Idle Cold or Warm [900]
posted by  someone claiming to be mphilleo  on Sun Feb 21 23:36 CST 2016 >


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