Daggar Posted April 19, 2007 Report Posted April 19, 2007 What happens is the car seems to act like some weeks it's running great. Lots of power and good ride. However some weeks the engine wants to misfire under load. Runs fine idling no misfiring, just when you get on the road and drive normally you notice the misfire and it's even worse at 5th gear. So I'm having a hard time thinking plug wires cause they are still really new and no cracks or damage I saw..and the fact it's happening every other week or day seems to say a problem with the computer... Anyone have any ideas? Thanks Quote
GutlessSupreme Posted April 19, 2007 Report Posted April 19, 2007 Could be a fuel pump on the way out? maybe? Quote
FordBoy Posted April 19, 2007 Report Posted April 19, 2007 i know what your saying i have a simular prob but my missfire is at idle in park of nuetral in gear no miss at all it rides and drives fine all the time. /end hijack anyway are all the plus and wires good? coil packs? Quote
joey b Posted April 20, 2007 Report Posted April 20, 2007 betcha it's plug wires. I thought the same thing as you. 200 bucks later guess what I found out. Quote
Daggar Posted April 20, 2007 Author Report Posted April 20, 2007 Well I guess this weekend I will test the fuel pressure and replace the wires and see what happens. Thx all Quote
Daggar Posted April 22, 2007 Author Report Posted April 22, 2007 Ok. I changed the plug wires.. and the problem seemed to go away.. but returned as I was going down the road. I see the dogbone is kinda worn as the bushings look damaged. Do you think the engine is rocking too much cause of it under acceleration? Or should I look more to the fuel delivery as it's jerking under acceleration? Quote
FordBoy Posted April 24, 2007 Report Posted April 24, 2007 replace the dogbones if they are warn whether it affects the missfire or not (i would they are pretty cheap) are all the injectors good check them before you try new coilpacks are the plugs good? Quote
GutlessSupreme Posted April 24, 2007 Report Posted April 24, 2007 Ok. I changed the plug wires.. and the problem seemed to go away.. but returned as I was going down the road. I see the dogbone is kinda worn as the bushings look damaged. Do you think the engine is rocking too much cause of it under acceleration? Or should I look more to the fuel delivery as it's jerking under acceleration? If it's bad enough it could cause a false knock reading, I suppose. I'd change them reguardless, so do that first then get back to us. Quote
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