1988 Mercedes Benz 300e missing

1988 MERCEDES BENZ 300E
Avatar
GARRYRIDGLE
  • MEMBER
  • 1 POST
Engine Mechanical problem
1988 Mercedes Benz 300e 6 cyl Two Wheel Drive Automatic 2000.0 miles

Car runs good for 15 to 20 minutes then start to miss badly In idle. But will if Ican get it move and run at high speed.It;s stalls at stops
Jan 7, 2010 at 8:58 PM
Advertisement
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Check and test the following below:

Oxygen Sensor
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
Cap and Rotor

Note:If it doesn't apply,disregard it.
Jan 8, 2010 at 3:45 AM