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1987 Mercedes-Benz 420SEL 4.2L Poor Idle Quality
Hello Group. We are currently working on a 1987 420sel which is idling around 500 to 510 rpms when in drive. When the car is in park, it will idle around 620 rpms. The car is also idling slightly rough. We have replaced the idle valve and coolant temperature s...
FIX posted 3/28/2001
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| VIN | WDBCA35D9H |
| Engine | 4.2 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Symptoms | Poor Idle Quality |
| Occurs | Idle |
Message Closed w/FIX
Vehicle Data
1987 Mercedes-Benz 420SEL
| VIN | WDBCA35D9H |
| Engine | 4.2 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Symptoms | Poor Idle Quality |
| Occurs | Idle |
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