
1987 Mercedes-Benz 420SEL 4.2L Excessive Emissions, Poor Idle Quality
car was delived to us with a rough idle. testing found clyinders nume #1 & #5, the two fwo most clyinders were not firing. an inspection of the plugs reveal mixture on all but #1 and #5.. compression test showe no varraition in compression between clyinders. c...
FIX posted 5/27/2004
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Message Closed w/FIX
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VIN | WDBCA35D7H |
Engine | 4.2 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | FI |
Symptoms | Excessive Emissions, Poor Idle Quality |
Occurs | Always |
Message Closed w/FIX
Vehicle Data
1987 Mercedes-Benz 420SEL
VIN | WDBCA35D7H |
Engine | 4.2 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | FI |
Symptoms | Excessive Emissions, Poor Idle Quality |
Occurs | Always |