Leaderboard

problem solved after 3 weeks of on and off diagnostic. it was the crank sensor that failed and this was very difficult problem to diagnose because the crank sensor did work " to a degree ". previous owner sold me this car for 1200 with only 89k miles because 4 or 5 shops that she took this ES300 to couldn't figure out the problem including 2 Lexus dealerships and 1 of them even suggested a new/rebuild motor because they thought somehow, the compression loss after engine warm up while running. I've been turning wrench as a master tech since 2001 and never encountered this problem before. not sure as to unique problem, only for Toyota or not but it was hard problem for sure. if you want details of how and what way the sensor failed or any questions about leading up to my findings, let me know.