when starting the engine missfires then after a while it stops after a short peroid of time with the engine off when its started again it misfires
Oct 25, 2009 at 10:59 AM
RASMATAZ
✓Experienced Mechanic
75,988 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.