toyota T-100, misfire on number 4 cyl.
1996 Toyota T-100 4x4, 3.4 Liter V-6. Mis-fire on number 4 cylinder. I changed plugs wires and swapped coil packs, still misfires.
It doesnt misfire all the time, somedays not at all. been mis-firing regularly.
I am having the same issue with my 1996 T-100 4X2 2.3 Liter V-6 (222,000 miles). My misfire is on cylinder 3. Did the same things: changed plugs, wires, and switched coil. Still misfires. It pretty much misfires all the time now. The 1st week I noticed it, it would run good and misfire regularly like yours, but now it never fires. Don't know what to do with it next. Sorry I am no help to you. Just letting you know there are others with the same issue recently.
I have the same problem as well on #4 they original told me I had a injector needing replaced so they did and still the same???
1996 Toyota T-100, 3.4 V6 2WD 103,600 miles: Mis-fire on 2 cyl in May 2010. ended up putting in new injector. Drove from MN to AK now September 2010: Miss-fire on 4 cyl - all potential electrical problems looked at. I'm not any help but want to follow this thread if anyone pipes in about a known issue. Thanks!
Guys I had the same problem on my 95 T100 3.4 V6 4WD. I had a misfire on number six. Check your fuel injector. I did the check with the screw driver trick. I could hear is clicking but very soft. Replaced it and no more misfire. Hope this help. The truck now has 310,000 miles on it.
Search Toyota T100 Questions
Toyota T100 Experts