At first my car would hesitate when cruising along and I would have to accelerate quickly, but all of a sudden it does it now when just starting out slowly. The vsc and check engine lights have come on several times, when climbing steep grades it seems. I remove the battery cables and the lights clear until I put a load on the engine. The lights are not on now, but it cuts out all the time when applying gas. The car starts and idles fine. Thank you!
Lexus Q&AAsk Your Question
2003 Lexus GS430 Question: why does my car hesitate and cut out when I give it gas
Answer #1G. T. Service Center (4234 Answers) , Stephenville, TX - (254) 638-3236ProfessorG February 23, 2014, 21:37Master
Have it scanned when the light is on for better information and then post the codes so we can help.
Reply1rick1, February 23, 2014, 23:38Rookie
Thank you, I'll do that!
ReplyProfessorG, February 24, 2014, 09:18Master
Answer #2Greg's Orange Auto (14643 Answers) , Orange, CA - (714) 361-9386globalhelper February 24, 2014, 09:41Master
could be mass air flow but the code would help
Reply1rick1, March 03, 2014, 20:42Rookie
I cleaned the MAF sensor with MAF cleaner and replaced the K&N air filter with a regular one. This made a tremendous difference, but when idling, if the accelerator is depressed quickly there is a definite hesitation at first and then the engine revs normally.This also happens when driving and the accelerator is depressed quickly for increased speed, there is a momentary hesitation, but then the car responds smoothly and with the power it used to. Any suggestions? Thank you.