[justin0717]

Ive got a 2000 4.0, which has a misfire, on cyl 5. lets see ive swapped the plug and injector with another cyl. Misfire still on 5. ive checked spark at the plug, good. So that elimates the ignition system, and the injector itself. Now im about to do a compression test. But heres my question....the misfire is only at idle, or steady speeds, not when you get on the gas. So if the compression was low, wouldnt it misfire all the time? Or am i thinking wrong? Does anyone else have any other ideas? thanks in advance