my car is idling up high without me pushing gas pedal. on 1999 Lexus ES300

It also jerks when I put it in gear, what causes this?

by in Birmingham, AL on February 23, 2012
3 answers 2 comments
ANSWER by , February 23, 2012
could be a vacuum leak. get a shop to check it for you. difficult to troubleshoot here without seeing it. Roy
COMMENT by , February 23, 2012
Thanks Roy, I plan on taking it to a shop
ANSWER by , February 24, 2012
COULD BE VAC LEAK OR BAD IDLE AIR CONTROL SYSTEM. HAVE IT DIAG BY YOUR MECH
COMMENT by , February 24, 2012
thank you, very much!
ANSWER by , May 05, 2015
my car changes speed independent of my inputs on the pedal