Mechanics

FOULING SPARK PLUGS

1987 Mercedes Benz 420sel

Engine Mechanical problem
1987 Mercedes Benz 420sel V8 Automatic 165000 miles

The coolant getting into the intake and fouling all 8 spark plugs black smoke and vapor coming out tail pipe.
Oil is clean and no sign of coolant getting into the crank case. Temp are normal,
Work perform replace water pump, remove and drain fuel
tank, replace fuel filter, new spark plugs and wires Dist Cap and rotor, fuel pressure regulator, ignition coil.
Question what could cause this condition?
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Bgbenz87
September 29, 2009.



How to replace Spark Plug Wires, Distributr Cap, and Rotor to Mercedes Benz 420 SEL 1987

Tiny
Davilea
Jul 29, 2012.