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1988 Mercedes-Benz 420SEL 4.2L Poor Idle Quality
Idle is very high, 1500 to 1800 rpms. Tried idle motor, also timing and co is within specs. Also the idle stop is adjusted correctly. We do not see any vacuum leaks. if we take the vacuum hose off of the ignition control unit located on l/f wheel well, idl...
FIX posted 10/29/1999
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Message Closed
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| VIN | WDBCA35D7J |
| Engine | 4.2 L / 8 cyl |
| Symptoms | Poor Idle Quality |
| Misc. | 4 Dr Sedan |
Message Closed
Vehicle Data
1988 Mercedes-Benz 420SEL
| VIN | WDBCA35D7J |
| Engine | 4.2 L / 8 cyl |
| Symptoms | Poor Idle Quality |
| Misc. | 4 Dr Sedan |
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