car idles very rough

1992 CADILLAC DEVILLE
105,000 MILES
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DOMINICKLUVERO
  • MEMBER
  • 2 POSTS
1992 cadillac deville 4.9 litre runs ok but idles very rough. new distributor cap, rotor,coil,plugs and wires. fuel injectors cleaned.new air filter computer codes say everythings ok. what am i missing?
please help
Apr 6, 2012 at 1:27 AM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
common for intake manifold gasket leaks. you cant here it or smoke it as it leaks under the valve covers. get a shop to help you with this repair.

Roy
Apr 6, 2012 at 1:58 AM
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