1996 LEXUS LS400 Engine And Engine Cooling Problems

PER LEXUS TECHNICAL SERVICE BULLETIN EG002-97, WHICH DOESN'T APPEAR ON THE NHTSA WEBSITE BUT WHICH CAN BE FOUND ONLINE BY CLICKING ON THE LINK FROM POST #77 AT THIS WEB PAGE: HTTP://US.LEXUSOWNERSCLUB.COM/FORUMS/TOPIC/15699-9596-LS400-LOW-IDLE-ENGINE-DIES-AND-JERKING-THRE/PAGE-6 MY '96 LS400 HAS THE SAME ENGINE-STALL-AT-IDLE-AFTER-CONTINUOUS-LONG-DRIVE PROBLEM AS EVERY OTHER EARLY PRODUCTION CAR MADE WITH VINS BEFORE [XXX]. GO ON THE HIGHWAY, DRIVE 50 MILES, EXIT, THE CAR IDLE SPEED DROPS TO WHERE THE CAR STALLS OUT. PUT IT INTO NEUTRAL, TURN THE KEY, IT STARTS RIGHT BACK UP, NO MORE PROBLEM. OR, DRIVE ON THE HIGHWAY, DRIVE 50 MILES, ENCOUNTER STOP-AND-GO TRAFFIC, THE IDLE SPEED DROPS TO WHERE THE CAR STALLS OUT. PUT IT INTO NEUTRAL, TURN THE KEY, IT STARTS RIGHT BACK UP, NO MORE PROBLEM. I GOT TAPPED BY THE CAR BEHIND ME WHEN AT 1 MPH I WAS COMING TO A RED LIGHT EXITING THE FREEWAY AND THE CAR DIED, THE LIGHT TURNED...