1996 Lexus LS400 Q&A
1996 Lexus LS400 Question: Car shuts down after driving on freeway for 1 hrs above 65mph then slowing down.
Excellent condition low mileage, always garaged parents car with all service done at dealer. After driving for an hour or so on freeways at over 65mph, then when traffic backs up and you need to slow to low rate of speed, car turns itself off. Also same situation when exiting freeway offramp, car unexpectly stalls to stop. Looses all power steering and braking even though car is still coasting, very dangerous for our new 18 year old driver to experience! - Lex400
Gosh...this is a VERY hard problem to VERIFY, DIAGNOSE, and CONFIRM...imagine having to drive an hour before a symptom appears! My guess is ...possibly fuel injection may be dirty since your scenario presents a sudden deceleration after a long time of steady driving. - your.mechanic
After it stalls , does it re-start right away? Is the 'check engine' light on , BEFORE it's stalling? Need to bring to shop when symptoms are present , to be diagnosed- POSSIBLE idle air control circuit issue. - ziptie12
you need a diag this could also be a trans lock up solenoid issue. have all codes scanned and post so we can adv - globalhelper