Just purchased a 1994 ES300 172,000 miles. This is my first Lexus, I have owned Benz up until now. Anyway, ran great when it picked it up but on the third day it developed a hesitation, almost a 'bucking' if you tried to accelerate slowly, and the Engine Oil Lamp came on as well.
The Engine oil lamp only light intermittetly, so I am holping that it means it just set a code. (This is the lamp with the picture of the oil can, not a lamp that says 'check engine') It seems that the lamp kind of 'flickers' when it is on, according to RPM. Oil was just changed in it before I picked it up. I was thinking of switching to a straight weight oil (30W or 40W), as I have always had good success with these in all my other vehicles.
Drove the car from Texas to PA, lamp was off pretty much the entire time, except when at idle speed(about 8000 RPM) when I was pulling in to or out of Gas station.
The 'bucking' has me a little more concerned. :( Let me try to describe it.
When pulling out slowly, the car hesitates like it is going to stall, but doesn't. If you push the accelerator to the floor, it kicks the transmission down and pulls out fine. It does the same thing when you are in gear coasting at at a slower speed and apply the gas slowly.
I have tried manually shifting the transmission, but that makes no difference.
After reading some other forums, I did inspect the air intake tube(?). There was a very small crack in the end of it, but where it connected to the front valve cover was broken almost completely off. I have taped this as a temporary fix, and it is selaed very tight, but there is no difference.
Any suggestions?
Thanks for all the replies in advance!