Questions & Answers for: lexus ls400 idle

...Lexus ls400. Run fine when cold but after 15 minutes the idle start jump up and down also no power when step on the gas pedal.It barely run when hot due to lack of power. The shop replaced the air ...

...Lexus LS400 cuts out, loos of power,eratic idle, no codes on ocasion the car cuts out, looses power, dies but restarts, eratic idle (goes up and down) and no trouble codes. sometimes it drives fine ...

Lexus LS400 loss of power and excessive fuel consumption and rough or low idle speed. HELP!! check the computer known for going bad. auto computer exchange in Davie fL can fix it loss of power on a ...

...lexus ls400. Car idles high and runs rough until competely warmed up then seems to run normal. I'm worried this could be stressing the engine out ? Not sure what it could be, I thought when your idle ...

...lexus ls400 it idles ok sometimes but when i get going or push on the gas it just creeps along i replaced the iac valve and the tp sensor still nothing oh and sometimes it backfires sounds in the ...

...ls400 lexus is idling high consistantly most likely the iac is all gummed up and stuck open. its your idle air control its located on your intake by your throutle body. you can remove it and clean it ...

...lexus ls400 1996 shakes violently when i shift from parking position to drive position. Also the idle is very high over 2000. It takes 10 to 15 min to get under 2000. anyone has answer the high idle ...

...lexus ls400, it jumped timimg. I repair the problem, crunk and ran fine for about 5mins then went to idling ruff. The code pops up as cyclinder misfire, 1,3,5,7. No fire on that bank at all. any one ...

...lexus ls400 goes real high up and down 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 ...

lexus ls400 idle high when i start it up all the time would that have anything to do with a belt or hose I doubt it. Probably a vac leak or problem with the throttle body. The engine computer controls