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7 Posts
I have a misfire in my 1993 Regal Series I. The misfire is noticeable at start up but gets worse as the engine warms to operating temp or when the a/c is turned on. It has been this way since I got it.
What I've done:
-I have checked the coils both cold and warm and they are all within range between 5 and 6 ohms.
-Sparkplugs look fine and wires are new.
-checked the fuel injectors they are all working.
-No oil in coolant or Coolant in oil.
-I noticed the radiator level is never all the way full when I check but no external leaks after pressure test
I'm thinking a possible cracked head with water in the cylinder causing a miss and crack opening wider at op temp, Maybe bad intake valves. Any input would be great.
What I've done:
-I have checked the coils both cold and warm and they are all within range between 5 and 6 ohms.
-Sparkplugs look fine and wires are new.
-checked the fuel injectors they are all working.
-No oil in coolant or Coolant in oil.
-I noticed the radiator level is never all the way full when I check but no external leaks after pressure test
I'm thinking a possible cracked head with water in the cylinder causing a miss and crack opening wider at op temp, Maybe bad intake valves. Any input would be great.