the shaymen Posted October 1, 2011 Share Posted October 1, 2011 Hi, I have a mk1 04 1.4 petrol focus with 64k miles on the clock, While travelling today my Yellow engine light came on and I notice the car was struggling to get up hills (holding back) Once home read the code which was p0304 cylinder 4 misfire. I have checked plugs and HT lead which are all okay so looking like coil pack failure. My question is there any way to test it to make sure before I fork out on a new one, Is there any one out there who has had the same problem and are these coil pack prone to fail around this milage. any help appreciated need car quick for work ,many thanks <_< Quote Link to comment Share on other sites More sharing options...
H3lly Posted October 1, 2011 Share Posted October 1, 2011 The voltage can be tested from the coil pack with a multimeter, or test with a known good one. Quote Link to comment Share on other sites More sharing options...
the shaymen Posted October 3, 2011 Author Share Posted October 3, 2011 Just letting you know problem fixed, I got a coil pack from the scrap yard £15. The car now running sweet as a pea. The old coil pack had no tracking marks from no. 4 outlet or underneath it so must have gone wrong inside somewhere. Once again thanks for your reply. :D Quote Link to comment Share on other sites More sharing options...
H3lly Posted October 3, 2011 Share Posted October 3, 2011 Glad you got it sorted :). Quote Link to comment Share on other sites More sharing options...
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