Focus Fanatics Forum banner

1 - 7 of 7 Posts

·
Registered
Joined
·
14 Posts
Discussion Starter #1
2004 SPI 60,000 miles on engine. Suddenly started to run rough. Advanced Auto read cylinder 4 misfire code. Changed plugs - no difference. Checked spark on plug 4 and plug 1 holding plug connected to wire against engine. Saw no spark on plug #4 and good spark on plug #1. Checked with MM - plug wire #4 reads 4.5 Kohms, plug wire #3 reads 5.3 Kohms. Switched #4 ad #3 wires. Going back to Advanced auto tomorrow to clear code then see if code changes to #3 cylinder. If not, does that leave the coil unit as the problem? Is there anything else to check before buying a new coil unit?
 

·
Registered
Joined
·
7,530 Posts
Your on the right track. If it doesn't change cylinders then its most likely the coil. There really isn't anything else seeing as its a distributorless setup.
 

·
Registered
Joined
·
228 Posts
i had the same issue a month ago.......I eliminated the plugs and wire as the problem.....so I replaced the coil and it solved the issue.........if you can wait a few days you can order them from rockauto for half the price of the stores
 
1 - 7 of 7 Posts
Top