4 misfire, high intake air codes are coming up

Tiny
KIMBERLEY2421
  • 2001 OLDSMOBILE ALERO
  • 175,000 MILES

Already changed the head gaskets new spark plugs and wires the car isnt overheating whats wrong changed the head gaskets thermostat water pump spark plugs wires car has a complete makeover were did I go wrong

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Sunday, December 4th, 2011 AT 12:47 PM

1 Reply

Tiny
HMAC300
  • EXPERT
  • 45,743 POSTS

Check the fuel pressure. If it's low it will cause a misfire. Also check for a vacuum leak.

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Sunday, December 4th, 2011 AT 2:43 PM

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