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Old 10-30-2003, 11:25 AM
ctaylor738 ctaylor738 is offline
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Join Date: Apr 2000
Location: Falls Church, VA
Posts: 5,316
In addition to the idle relay or idle air valve, it could also be a vacuum problem, especially if it is occurring when the brakes are on. Check the vacuum booster for leaks, and look for disconnected vacuum lines, cracked connectors, etc.


If you send me an email, I can send you the procedure for testing the various components of the idle system.
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Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
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