Engine hesitation/acceleration problem
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Driver School Candidate
Joined: May 2001
Posts: 14
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From: New Jersey
Engine hesitation/acceleration problem
I have been having a strange problem and wonder if anyone else has seen it.
When traveling at a constant speed occasionally the accelerator seems to "lose" its feel. In other words rather than being able to accelerate by simply depressing the accelerator slightly it requires significant distance before the engine responds (this is not the same issue as when flooring the accelerator and the engine taking awhile to downshift.) It is feels almost as if the engine has stalled. It happened last year intermittently but this year much more frequently, I will notice it several times on every drive.
I have reported this to my Lexus dealer but they can not seem to find the problem.
When traveling at a constant speed occasionally the accelerator seems to "lose" its feel. In other words rather than being able to accelerate by simply depressing the accelerator slightly it requires significant distance before the engine responds (this is not the same issue as when flooring the accelerator and the engine taking awhile to downshift.) It is feels almost as if the engine has stalled. It happened last year intermittently but this year much more frequently, I will notice it several times on every drive.
I have reported this to my Lexus dealer but they can not seem to find the problem.
Lexus Fanatic
Joined: Oct 2003
Posts: 94,328
Likes: 236
From: Virginia/D.C. suburbs
Check several things to start.......bad Throttle Position Sensor, bad Mass Airflow sensor, bad Oxygen Sensor, weak fuel pump, clogged fuel filter or injectors (often a result of cheap gasoline). Carbon buildup in high-mileage engines can mess up throttle response by accumulating on throttle parts and cutting down on airflow and free motion.
Even whren everything works properly, some Lexus drive-by-wire systems havs a non-linear throttle response that varies with engine temperature, feels strange, and takes getting used to.
Even whren everything works properly, some Lexus drive-by-wire systems havs a non-linear throttle response that varies with engine temperature, feels strange, and takes getting used to.
Lexus Test Driver
Joined: Aug 2003
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From: Minnesota
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Lexus Fanatic
Joined: Oct 2003
Posts: 94,328
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From: Virginia/D.C. suburbs
Originally posted by ntran18
plugs should be changed at:
GS3 -> 60K
GS4 -> 120K
plugs should be changed at:
GS3 -> 60K
GS4 -> 120K
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