Possible injectors

Greetings from Alaska. So my Tacoma has been at the dealership for almost 2 weeks now. It has less than 50,000 miles on it when it went haywire on Wednesday morning. The check engine light plus the TRACoff was on then all kinds of alarms were showing...trans temp...oil pressure. When there was no apparent overheating. The truck also had a rough idle plus miss firing. Toyota thought it was bad fuel so the cleaned the tank, changed the filter and put in premium fuel. That made the problem WORSE. There was only minor fuel separation as well before the clean out. Now they are saying it could either be heads or injectors. Ugh I’m disappointed with the way vehicles are manufactured now. Them seem to always have problems.

 

Electrical issue? Loose or broken connections cause some freaky stuff to happen.

 

Agreed

 

Yes it’s still under warranty. My truck was on the list for the crank shaft censor. They changed it out already.

 

They need to replace it again

 

I’ve always wondered about this. When they replace a faulty part how does anyone know it’s not replaced with another faulty part?

 

It was never the crank sensor; it was the coating on the timing rotor.
They modified the crank sensor to accommodate.

 

That's why I always hate using aftermarket parts. They seem to have a higher failure rate than factory parts and cause a little confusion when the new part is bad and you're sitting there doubting your diagnosis.

 

I'd be more disappointed in the dealership's ability (or lack thereof) to find the cause of the problem, rather than blame the build quality. I hope they get it sorted out quickly, but as @Boghog1 said, it does sound electrical.

 

My buddy retired, but was a veteran tech, even on special factory teams, that help other dealers and dealer techs. One of his famous quotes that I still borrow: there's no rule that says: just because you replaced a part, means that you replaced a part with a good part.
This is why some take the carpet bomber approach to vehicle repair, assuming all replaced parts are known good, and can be put on a list never to be challenged. It's not uncommon someone's fix to the first problem, becomes the real problem. Same friend that was sent all over to fix dealer nightmares would first request a list of fixes, and customer's initial issue.

 

Sounds like the crank sensor needs to be replaced again, if already done.

 

For some common, bad electrical parts, I used to keep quite a few used, but known good parts in a box to swap out and check quickly......
I pulled most of them off vehicles being written off or purchased from the wrecking yard dirt cheap. Saves time sometimes...
I’ve also installed quite a few brand new or rebuilt parts that didn’t work too. Lol