I have a 1999 RX300 2WD that is having difficulty accelerating over 40mph. It just happened today during some hot california weather with the AC on. I checked all the fluid levels (transmission, oil and coolant) and they look fine. I used one of the code scanners and it reports no codes/problems.
Just changed the tires, engine coolant, air filter
Wednesday, June 21st, 2006 AT 9:45 PM