I have a engine miss,like a gasser with a cracked spark plug,my truck has 307k and I know the valves have never been adjusted.I also had trans rebuilt last month,new t/c ,shift kit but I have had it going in and out of OD under load,first noticed it down in FLA,cruiseing about 65mph,truck would act like it is popping out of OD for a split second,yes I know they tell you not to tow in OD but I have towed in OD for well over 100k and got 200k out of my last trans,and I cant go that slow,lol :-),Im thinking maybe a shift solenoid or something like that.The guy that rebuilt trans replaced a harness with 2 solenoids with 2 plunger type switches that go in the valve body.Any thoughts on these 2 problems??

 

could be a flat spot in apps causing a miss,,could be a little convertor shudder,and definitely is gonna drive you crazy trying to find the problem........try resetting the apps and see if problem goes away for a while.mine has been doing this and the reset lasts for about a week then comes back.,,,,,bama

 

What about the TPS? A 24v does have a TPS right?

Eric

 

,,,,,,,,cumminsdriver,,its a accelerator pedal position sensor,,,or apps on 24`s...............talk to you later,,,,,,bama

 

Oh. Ok. 12 valves are what im farmiliar with

Eric