Engine hesitation...

The FSM calls out what acceptable ohm readings are across certain distributor contacts. For a visual inspection take off the distributor cap and take a look at the coil for cracks. Attached is a picture of my bad distributor. had cracks all through it and was way out of spec. Also was not TOYOTA OEM. Replaced it with an OEM distributor off a junker and it solved everything. Here is my thread for reference.

https://www.tacomaworld.com/threads/2-7-stumbles-and-bucks-under-load-solved.449971/

 

After checking tons of parts I finally tried the distributor and it fixed my stuttering issue!! Thank SOMDTACO!

 

Mine is an '06 so no distributor, it has individual coil packs.

 

So I replaced the entire distributor and guess what.......no more problems at all!!! I think it had somehing to do with the ignition coil in the distributor

 

So I replaced the entire distributor and guess what......no more stuttering/hesitation problems anymore. Pretty sure it had something to do with the ignition coil inside the distributor, but hey I'm glad that I was able to get it fixed

 

So just wanted to add to my original thread. My truck started having terrible performance sporadically. It was different this time than last time. Would run fine sometimes, then other times fall flat on its face trying to come from a stop. Idle would be all over the place then sputter out and stall. I'd have to keep it reved high at red lights. It was bad. Last time I fixed it I used a junk yard distributor from another 96, so I figured maybe it has just gone bad again. Well, I took a look at the coil and it had a huge crack. I bought a brand new OEM coil from Toyota and put it in. Don't even have to remove the whole distributor, just take off the cap, rotor, and protection cover. It's plug and play for the new coil.

The new coil immediately solved my issue. Running better than maybe it ever has. Amazing. During this round of troubleshooting I found this great link with tons of information relating to bad coils/distributors on Toyota corrolas. See, Tacomas only had a distributor for the 95's and 96's. So there's not a lot of operating experience on them when you have an issue. The corrolas had the same style coil/distributor for quite a few years so there's a lot more information to pull from. Linked below.

https://www.toyotanation.com/threads/list-of-confirmed-distributor-at-fault-issues.1239322/