toyo

I had just rebuilt the transmission several weeks ago and all went great. Wednesday afternoon my son advised me it was not going into OD. ****, what did I do wrong! Well, thankfully it was a defective knock sensor on bank 2. Yes, if your knock sensor is bad it will make your transmission act up.
I spent all flippin day working on that car without planning on it at all. This was my day yesterday. If anyone of you have replaced the knock sensors, you know it's pretty time consuming. That support bracket that comes up in back against the firewall that bolts onto the air chamber is such a pain for me to get at. Then you have the ground wire. My hands are to big for that crap.

Anyway, I took a picture of the top end on bank 2. I replaced the valve cover gaskets as well. It is amazing too me how clean this motor is at 363K miles.

hypervish

Yes, the knock sensor can knock out the OD, it's accounted for many threads here on CL.

Glad to hear you got it fixed!

toyo

Thanks. Runs like a champ.

Lexusblack

oh wow.. 363K on the car? amazing.

fastnoypi

how did you determine the bad knock sensor for your root cause? did you run a scan?

toyo

Yes, used my scan tool to determine the defective sensor. As I posted in another thread, after I installed them I was getting a knock sensor code. I replaced them again today with factory sensors. At least the parts store is going to pay me the labor charge for the defective sensor.