has a had time starting once warm

1992 MERCEDES BENZ 500SEL
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ROBERTOWENS63
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  • 4 POSTS
what will be the cause for hard starting after car has been driven for approximately fifteen miles and sits for 1 1/2 hours. I have changed both fuel pump check valve, replaced crankshaft sensor, replaced fuel filter.
Nov 30, 2011 at 8:59 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check the fuel pressure if its within specs if okay look for an ignition spark-start here
Nov 30, 2011 at 10:02 PM
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