ggloversr

Thanks, I'll have the manifold checked next..

I have a 2000 rx300 4wd and found that I had much better response from the transmission after having a total flush done. That was about 20,000 miles ago and now I notice some hesitation coming back, Time for another flush... It's a common problem with these cars.

I have had most of the sensors changed including the knock sensor and the computer still says the engine is running lean. Any suggestions on what may be causing the problem?

The car is a 2000 RX300 4wd with 107,000 miles on it.

:whistles: Need info and photos if available on how to remove knock sensors on RX 300 99. Tks,Gary

I read how to change the knock sensor without taking off the manifold somewhere on this forum however I can't find it again. If anyone knows where it is I need it. Please let me know...

Thanks

Hello all,

I just had noted that Octane 87 help the transmission shift smoothly. I have a problem with the lag time in low speed; the transmission seems to slip into about 2 second of Neutral. This just happen when I put Octane 89 or Premium 93.

It sound like did make any sense that the cheap gas run smoothly than good gas.

Is there any body has the same situation? I have an appointment with dealer for checking ECM CALIBRATION SHIFTING ENHANCEMENT.

I would like to have you recommend in this case. Thanks a lot in advance.

Hi,

I'm having a similar problem. I found that mine shifted better at first when I used better gas, and now after about 2 months of it the transmission won't shift into 4th gear or sometimes even go down to 1st gear at a stop.

LEXUS we have a PROBLEM!!!!