Bump, then misses. Please help a fellow jeeper out.
My problem started about two weeks ago. Didnt notice at first how it started,just started missing. Ive replaced the plugs,wires,cap/rotor,checked for vacuum leaks, replaced the coil and the connector at the coil. just when I think I have it fixed it starts doing it again. Missing and the Tach jumping around like crazy. Evertime it actually quits it starts right back up and it can be missing like crazy in gear and as soon as i put it in nuetral it clears right up most of the time but not all the time. Today, when I thought i had it fixed again, I took it on the highway and would run smooth till I hit a bump, then miss and come out of it till i hit the next bump and the same thing all over again. As crazy as the Tach gets, im thinking electrical, Loose wire maybe? I forgot to mention that I also changed the fuel pump and filter. I dont know where else to look. Please help! I also forgot to mention that it is a carbed 4.2 litre automatic in a 87 yj.
Last edited by Steck; 08-28-2012 at 05:07 PM..