I'm going to start with the basics, I have a 94 Toyota pickup. 130xxx original miles, new distributor, plugs, head and head gasket, oil pump, radiator, water pump, etc.

The problem:

I cannot pin point what is causing my truck to do this, it only happens at random times and when I get someone to look at it, it drives fine.

We just put a new throttle position sensor hope it would fix the problem but it didn't.

When I first crank up, it runs fine. Once I get going and my truck warms up, it sputters. I give it gas, and it accelerates but barely at all, makes this awful chugging or sputtering noise, like it doesn't want to go. When I accelerate it is jerky. I googled the problem for hours but can't find any help but did find other posts about this problem just not specifically for my truck.


I'm thinking it's something with my plugs because we took them out and put them back in and it did fine for a day then back to the same problem.

Any advice would help! Thank you.

 

Welcome !!!

4 or 6 cylinders ??Manual or Auto ??

New to you vehicle ??

You owned for awhile and this problem just started ??

You don`t mention plug wires was that just left out by mistake or were they not changed??

Fuel filter changed ??

It may be a fuel issue or it might be a ignition problem caused by the coil getting hot.

When you pulled the plugs how did they look reading plugs can tell you quite a bit.

 

Was thinking it sounded like it could be a lose or mis-aligned distributor as well.

Something from ol dirtbike knowledge, pull plugs one at a time and check their sparking. A nice big fat blue spark is healthy, a tiny weak yellow one means you have a issue that needs investigating.

 

Did you ever get it fixed? i have the same problem.