1998 F-150, 4x4, 4.6l engine, 300,000km (190,000 miles)
Thanks gentlemen for taking the time to answer my question.
As noted above, I have a misfire on 4 and 8. When it first happened I replaced all the plugs (60,000km since last plug/wire replacement). Misfire still occurred. I took it to a mechanic (he told me it was 4 and 8 that were misfiring), and suddenly it started running fine and he was unable to diagnose the problem. 1000km later it misfires again, so I replaced the wires, and now it is still misfiring. (A note about those 1000km, they all happened in one day, the day following the testing)
So 3 questions-
1. Where should I look next?
2. Is there an inexpensive method of testing I can use that will allow me to eliminate electronics and look at the fuel injector?
3. How much damage am I doing by running it on misfire (I need it to work)
Thanks in advance for any suggestions or advice you can give.
have the same problem?
Sunday, January 14th, 2007 AT 7:13 PM