backwoods lex

I have a 2000 ES and had a similar problem. I had engine knocking under load and the check engine light came on as well as traction off. The transmission was reluctant to downshift also. I took it to the dealer and they replaced a knock sensor with a cost of $780.00 (luckily it was under extended warranty and it only cost me $75). On the way home the CEL came back on. After doing a search here, I discovered that the MAF for the ES is defective and periodically needs to be cleaned. It cleared up my problems for me. Do a search on how to clean the Mass Air Flow sensor. It may save you a lot of money and it is very easy.

Found out what the problem was. I had a tough time isolating the sound, even using one of those electronic sound devices. I tried of all things a cardboard paper towell cylinder and it worked great. I traced the sound from my exhasut manifold down to the catalytic converter. I've heard that some of these things have ceramic parts inside that can break. The sound had been carrying up the exhaust in front of the engine. I feel a lot better now that I can drive the car.

Thanks so much guys. I really appreciate the help. That kind of stuff just scares me with the interference engine. Thanks again.

Thanks Toys. But any idea what the noise could be? No cel, regular oil changes since I've owned it last 40k. I've never heard that noise before. What did you mean checking the "fins"? Thanks again.

New member here. I noticed the other day while revving my engine while under the hood that there is a rattle. I am assuming that it is the water pump. It isn't present at idle, but when I raise the RPM I can hear a noise that sounds like a woodpecker tapping on a hollow log. I can also smell antifreeze, but the level is fine and does not appear to be leaking. It has 89k and I am getting the TB and water pump changed next thursday, but I still need transportation. How safe is it to drive with the interference engine. Any estimates as to how long it can make it? Thanks in advance for any help.