Throttle Position Sensor maybe gone bad?
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Joined: Mar 2015
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From: oceanside california
Throttle Position Sensor maybe gone bad?
Hey there, recently i had gotten my 06 vette harmonic balancer changed and while it was being changed they ran the check engine codes and mentioned the tps was acting up.
Afterwards, new harmonic balancer and the check engine light were all good. BUT while driving away from the mechanic. When i start my car it rev's up to like 2k rpm and stays at 1.5k rpm. And while driving down the road if i accelerate to 45mph the car will literally stay at 45mph WITH MY FOOT OFF THE GAS like cruise control or as if its driving itself????? (it didn't do this before i went to the mechanic to fix my harmonic balancer, they also said they cleaned up my throttle body)
Side notes:
- there is no longer a check engine light, but obviously something is wrong.
- Has my TPS gone bad? IF so do i have to buy a new throttle body or can i just buy a new tps and replace it.
Afterwards, new harmonic balancer and the check engine light were all good. BUT while driving away from the mechanic. When i start my car it rev's up to like 2k rpm and stays at 1.5k rpm. And while driving down the road if i accelerate to 45mph the car will literally stay at 45mph WITH MY FOOT OFF THE GAS like cruise control or as if its driving itself????? (it didn't do this before i went to the mechanic to fix my harmonic balancer, they also said they cleaned up my throttle body)
Side notes:
- there is no longer a check engine light, but obviously something is wrong.
- Has my TPS gone bad? IF so do i have to buy a new throttle body or can i just buy a new tps and replace it.
Thread Starter
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Joined: Mar 2015
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From: oceanside california
Drifting
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Race Director
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St. Jude Donor '15
The more DIY guy method is to spray brake cleaner or something like that on places it might be leaking. If idle RPM changes then there's your leak
That does seem to make sense though if they were messing with the intake.
Last edited by schpenxel; Jan 19, 2016 at 10:04 PM.
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Melting Slicks
Joined: Jun 2006
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From: Miami Florida
Did you ask to remove the intake and throttle body to be cleaned? makes me wonder if you still have the same tb.
Also look at the power brakes vacuum connection if it broke (which is easy) and was glued intake will have to be scrapped these are only possibilities of course if vacuum connections and all possible leak sources are sealed.
The shop however is responsible to at list find out why you are having the problem.
Also look at the power brakes vacuum connection if it broke (which is easy) and was glued intake will have to be scrapped these are only possibilities of course if vacuum connections and all possible leak sources are sealed.
The shop however is responsible to at list find out why you are having the problem.
Thread Starter
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Joined: Mar 2015
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From: oceanside california
ALSO another question, are the original throttle bodies serialized with the car? Because if so i can check the numbers and if they are different then top flight corvette must have switched me a bad throttle body.
Le Mans Master
Joined: Jan 2008
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From: corpus christi Texas
How do i perform this? For i didn't remove the throttle body the shop i went to had removed it and cleaned it, so they might not have done it.
ALSO another question, are the original throttle bodies serialized with the car? Because if so i can check the numbers and if they are different then top flight corvette must have switched me a bad throttle body.
ALSO another question, are the original throttle bodies serialized with the car? Because if so i can check the numbers and if they are different then top flight corvette must have switched me a bad throttle body.
Last edited by Cherokee Nation; Jan 20, 2016 at 07:47 PM. Reason: add
Thread Starter
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Joined: Mar 2015
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From: oceanside california
After inspection for a vacuum leak, nothing was found and the RPM doesn't stay constant like a normal vacuum leak would. The rpm's change very slowly after the idle rev start up. And it is sluggish on reacting to me pushing on the gas pedal which leaves me only with the option that my TPS is going bad and unfortunately have to buy a new throttle body :\
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
After inspection for a vacuum leak, nothing was found and the RPM doesn't stay constant like a normal vacuum leak would. The rpm's change very slowly after the idle rev start up. And it is sluggish on reacting to me pushing on the gas pedal which leaves me only with the option that my TPS is going bad and unfortunately have to buy a new throttle body :\
Thread Starter
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Joined: Mar 2015
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From: oceanside california
