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Well, a few weeks ago I was driving it on the highway and noticed that the RPM's were hanging around the 4300 mark. We made our stop and when we drove home, the RPM's were right around 2300 where I would expect them to be. I advised my wife to keep an eye on them since we just had the trans. rebuilt in late March. The rebuild came with a 12mo./ 12k warranty so they are rebuilding it as I type even though the general manager did state that there was a code showing that the knock sensors needed replaced which more than likely caused the damage to the trans. So, after a little research on the net and here, I have found that the knock sensors appear to place the vehicle in safe mode and I am hoping to do the fix by splicing the wires to the "good" sensor and get a little more time out of the vehicle. My wife loves that car and I would like to be able to trust it to cart the kids around without any problems. I hate to think that they are all stuck on the road somewhere in this 100 degree Texas weather. Thanks again for everyones input.

Hello, I am new to the forum and also have the same issue with my 2000 ES300. The car is currently at the transmission shop due to the transmission not going into OD while the wife was driving it on a 2 hour road trip. The mechanic stated that the he will get the transmission repaired but the problem is with the knock sensors. I have been reading all the great information on this post but have a few questions. First, how do I find out which knock sensor is the "bad" sensor and second is it possible for anyone to post up a picture of the location and wires that I should be looking for? Any help that I can get would be fantastic. We are planning on getting the car back on Saturday and I hope to have it up and running properly that day so my wife will not need to stay in the rental. Thanks for your help.