20 Most Recent 2005 Lexus LS400 - Page 9 Questions & Answers

remove the door panel the plastic clip attached to the window has broken away from the regulator arm. you can replace the regulator easily at that point or you can cut a 2x4 to fit and do not forget to unplug the regulator motor. jam the wood between the window and the bottom of the inner door frame.

are you sure you didn't blow a head gasket?is it whit smoke?

Need to check next time it quits,pull a wire and see if it has spark,I suspect it is a ignition problem,not fuel.

More often than not this is caused by a large vacuum leak on the engine, the surge up and down is the computer trying to slow the idle. Use a bottle of propane gas and a torch adapter with a rubber hose on it, spray the gas around the top of the top of the engine and alos around any vacuum hoses from the engine, if you hit a vacuum leak the engine will sound much different, repair as needed.

idle control motor its on the inlet manifold and either needs renewing or a good clean