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1989 Mercedes-Benz 420sel 4.2L Poor Idle Quality, Stall, MIL Lamp on
HI GROUP I am working on idle problem. when car idles fuel governor or eha is geting up and down voltage readings causing engine rpm to fluctuate up and down at the same time engine check light comes on and off also air pump clutch clicks on and off I have che...
FIX posted 7/10/1998
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| VIN | [No VIN Available] |
| Engine | 4.2 L / 8 cyl |
| Emissions | ca |
| Symptoms | Poor Idle Quality, Stall, MIL Lamp On |
| Occurs | Always, Idle |
| Misc. | 126 |
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Vehicle Data
1989 Mercedes-Benz 420sel
| VIN | [No VIN Available] |
| Engine | 4.2 L / 8 cyl |
| Emissions | ca |
| Symptoms | Poor Idle Quality, Stall, MIL Lamp On |
| Occurs | Always, Idle |
| Misc. | 126 |
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