Thread: 1993 400SEL hard start/rough running on warm/hot startup
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Old 03-10-2014, 03:50 AM
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oldsinner111 oldsinner111 is offline
lied to for years
  
Join Date: Nov 2008
Location: Elizabethton, TN
Posts: 6,308
sounds like a coil breaking down,How many coils does it have?It also can be a crank sensor if your model has one.
I buy all my parts thru EBAY.you could buy a used coil.My coils run 150 each,I bought 3 for that price,and they were bosch.
when it acts up check and see which plugs are not firing.before you buy a crank sensor check the wiring to it.Mine came loose
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