1993 Mercedes Benz 500sel starting

1993 MERCEDES BENZ 500SEL
322,000 MILES • 5.0L • V8 • AUTOMATIC
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KEENMA
  • MEMBER
  • 1 POST
Take long time to start after the car set for hour or over night. After start run fine. Lot of power. I changed gas filter. Air filter. Spark plugs.
Still the same. May be check valve ? Fuel pump ?
Jan 28, 2014 at 11:26 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,236 POSTS
I would recommend checking fuel pump pressure when it is cold to see if it is within the manufacturer's specs. Also, with that many miles on the engine, it may have low compression which in turn would make it hard to start cold.
Jan 29, 2014 at 12:30 AM
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