engine has a miss 2.5 liter on 2002 Mercury Cougar

engine misses real bad when its cold,at running temp misses once in a while at cruising speed,but when engine is under aload it misses bad.

by in Cape Coral, FL on February 02, 2011
1 answer
ANSWER by , February 02, 2011
Check out the ignition system. Miss under load and when cold suggest ignition problems.