alis888

Hi everyone, my 2001 RX300 had a broken water pump and the timing belt came off by 1 tooth. The car would not start at this point. I replaced both water pump and timing belt. Currently, the car will start, but the engine dies after a few minutes. Any help or suggestions?

Just drained and refilled with Castrol GTX 10W-30

I have a 96 LS400 with 158K miles. When the engine is cold (I live in FL, so the engine is never truly "cold" temperature wise, by "cold" I mean when the car hasn't been driven in several hours) the shifts between gears while driving is rough and slightly stalling. Also, putting the car in reverse has the same effect. I recently discovered 2 damaged vacuum lines which I replaced, but this has not fixed the problem. The rough gear shifts only occur when the engine is cold, after driving for 15 minutes the problem disappears. The oil was changed recently and the transmission fluid is at the correct level. I do drive about 20K miles a year though. Any ideas what the problem is? I've heard talk about the solenoid in the transmission causing this, any opinions?