1987 Mercedes Benz 300e Repair Question
Topics covered: Engine, Spark, Compression.
Mileage: No information provided.
Mileage: No information provided.
Asked on July 27, 2010
1987 Mercedes Benz 300e rough idle when frist startup
Engine Performance problem
1987 Mercedes Benz 300e 6 cyl Two Wheel Drive 140000 miles
When ii frist strat the caridle very rough for about 5 min
once it warm up it run good.
1987 Mercedes Benz 300e 6 cyl Two Wheel Drive 140000 miles
When ii frist strat the caridle very rough for about 5 min
once it warm up it run good.
Asked by solruffAnswer
Replied on July 27, 2010
Engine running rough or misfiring can be cause by the following:
1.Defective spark plug
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
10.Throttle position sensor.
11.Idle air control valve.
12.Engine compression problem
