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Steve, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 553
Experience:  Air, Drivability, Engines, Electrical
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A new question is answered every 9 seconds sputters to a start it runs real rough and misfires

Resolved Question:

My 1995 E-420 sometimes will not start when it's hot. It back fires and sounds like the timing is off and once it sputters to a start it runs real rough and misfires for quite sometime or until it is shut off and restarted. Any idea what causes this?
Submitted: 8 years ago.
Category: Mercedes
Expert:  Steve replied 8 years ago.
bad ignition or valve timing. you need to pull the codes out of the computer.

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Customer: replied 8 years ago.
Any chance it could be the crankshaft position sensor needs a shim or replacing?
Expert:  Steve replied 8 years ago.