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#1
06-12-2000, 10:03 PM
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My 1991 420SEL (78,000 miles) has a sudden pulsation in the idle at stops. Has been reciently tuned/maintained but didn't stop the idle pulsation. The range of pulsation is only a few hundred RPM. Also seem to have rough start problem when outside temp is hot and car has sat for over an hour (also bad exhaust smell outside after hard start). Any suggestions on where to look?
Thank for your help! ------------------ MrRoche 1993 300E 1991 420SEL 
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#2
06-13-2000, 09:24 PM
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Be sure to have the EHA checked for signs of fuel seepage, if it has any signs of leakage, I would replace it and have the fuel mixture checked with a lambda tester.
------------------ Benzmac: Donnie Drummonds 1992 500E (very soon I hope  1981 280GE SWB ASE CERTIFIED MASTER AUTO TECHNICIAN SERVICE MANAGER FOR 14 BAY FACILITY MERCEDES SPECIALIST 8 YRS PARTNER IN MERCEDESSHOP.COM
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