Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - The check engine light that won't die
View Single Post
Old 12-04-2012, 03:16 PM   #5
cbdallas
Focus Addict
 
cbdallas's Avatar
 
Join Date: Jun 2012
Fan#: 100296
Location: Wylie, TX
What I Drive: 2014 Titanium 5-speed

Posts: 872
Points 2,425, Level 29
Points: 2,425, Level: 29 Points: 2,425, Level: 29 Points: 2,425, Level: 29
Level Up 84% Completed
Level up: 84% Level up: 84% Level up: 84%
Forum Activity 2%
Activity: 2% Activity: 2% Activity: 2%
FF Reputation: 3 cbdallas Good Standing Member
Buy-Sell-Trade Rating: (0)
Ok, if your car does indeed have spark plug wires, tell that 'guy' that you don't have coilpacks.

Next question..does your engine have a mechanical distributor (round), or a module (square or rectangular) ?

Another source of a misfire could be from a bad connection at the fuel injector for that cylinder, or a malfunctioning / leaking injector.

I once had an Oldsmobile that stumbled & occasionally backfired on startup because one of the fuel injectors leaked into the intake manifold when the car was shut off.
cbdallas is offline  
    Reply With Quote