Confused

Alright, I have a 03 tacoma v6 4wd, she has a little over 174000 miles and the other day I was coming home and, I'm gunna explain this the best I can, I was doing about 60mph and it felt like it cut out or missed, it dropped about 100-200 rpm than went back to normal I have no clue how to expel it better can someone help!

 

Automatic or manual transmission?

 

Who can say did your MIL trip ??

 

It's an auto and I'm not sure

 

No engine check light ?Twice I experienced something like that both were Chevy's first an 89 Blazer turned out to be a anti knock sensor installed incorrectly took for ever to figure that one out. Second time was a 99 Silverado it turned out to be the gasket on the locking gas cap was failing. Both times codes were set that vaguely hinted at the problem.

Cypher

 

It's been in for several years now, last time I checked it it was an o2 sensor it's been running fine for ever with it on! Maybe I should have it plugged in.

 

Let sigh

 

Mine would randomly cut out it and it was the front o2 sensor.

 

Your OBD II system will let you know when things go wrong .

It will point you in the correct direction.

It might be more fun to change random parts and hope you get lucky.

Then if you have more money then most of us time to just buy a new truck.

 

Not always, I had no check engine light or any codes when my truck was missing due to the o2 sensor. But if you do have a light and codes that's usually a pretty good place to start.

 

If your CEL is on due to 02 sensor your gas milage is suffering big time. Not to mention engine performance.

 

Not if it's just the heater circuit, which is often what fails first.

OP isn't real precise in his info. Like what the actual code is.