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W126 idle air valve - test
I am trying to fix a hard start/rough cold idle problem and from a search it appears one of the culprits could be a stuck idle air valve.
Is is a valid test of the system (and to test the idle air valve) to disconnect the idle air valve electrically and look for a noticeable increase in idle speed to 1500-2000 rpm??? I have done this and NOT noted the increase in idle speed and now am wondering if that is my problem. Thanks.This is a 86 560SEL. |
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Curious myself. Went to SEARCH and keyed in:
*idle valve* 22 hits - some better than others. You'll need the CD-rom. It contains diagnostic methodology for this problem.
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Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein" |
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