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#1
03-09-2000, 02:02 PM
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When I put my 1991 500SL into park, then rpm goes to around 1500 rpm. Sometimes after 1 minute the rpm resumes to 500-1000 rpm.
Is there a idle control switch that handles this function? 
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#2
03-09-2000, 09:08 PM
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This could be a throttle valve idle switch or a faulty idle speed actuator.
------------------ Benzmac: 1981 280GE SWB 1987 16V ASE CERTIFIED MASTER AUTO TECHNICIAN SERVICE MANAGER FOR 14 BAY FACILITY MERCEDES SPECIALIST 8 YRS PARTNER IN MERCEDESSHOP.COM
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