My car is missing, the check engine light is not on and it does not blow smoke. I checked the wires and it seemed to fix the problem but it came back. What can it else can it be?
Sunday, February 14th, 2010 AT 4:09 PM
1 Reply
RASMATAZ
MECHANIC
75,992 POSTS
Engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.