gas pedal sticking
Thread Starter
Instructor
Joined: Aug 2006
Posts: 220
Likes: 12
From: Hagerstown MD
gas pedal sticking
ok all i have posted a couple posts concerning my vette was ideling high.
i replaced the TPS sensor and checked the volts.
today i found out what i think it is
my gas pedal is actually sticking
i can feel it click when i depress the pedal and if i put my foot under the pedal and lift it up i can feel the pedal click and then my idle goes back to normal
every time my idle gets high i have todo this to get it out of place
anybody ever have this before
i replaced the TPS sensor and checked the volts.
today i found out what i think it is
my gas pedal is actually sticking
i can feel it click when i depress the pedal and if i put my foot under the pedal and lift it up i can feel the pedal click and then my idle goes back to normal
every time my idle gets high i have todo this to get it out of place
anybody ever have this before
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
More than likely the throttle body.
It won't get better. I've dicked with mine over and over and over and over and over again and had bearings installed in it, then dicked with it and adjusted itover and over and over and over and over again and it still sticks. I loosened it up so it wouldn't hang at high idle, now it's sticky coming off idle, so you can't ease into the throttle.
I think next time I will adjust it towards to the bottom of my trash can.
It won't get better. I've dicked with mine over and over and over and over and over again and had bearings installed in it, then dicked with it and adjusted itover and over and over and over and over again and it still sticks. I loosened it up so it wouldn't hang at high idle, now it's sticky coming off idle, so you can't ease into the throttle.
I think next time I will adjust it towards to the bottom of my trash can.
Last edited by CentralCoaster; May 31, 2007 at 04:21 PM.
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Heel & Toe
Joined: Jul 2007
Posts: 16
Likes: 0
From: Melbourne
This one has me scratching my head to, I have replaced the throttle body, IAC, adjusted the TPS, disconnected the throttle cable to checked for any sticky spots (there are none, and it only sticks when the engine is running) and added a spring which helps but it will still catch when driving and I have to blip the throttle so it snaps back to idle.
So good luck and I will let you know if I find a solution
So good luck and I will let you know if I find a solution
7th Gear
Joined: Aug 2011
Posts: 7
Likes: 1
I just went through this on a road trip. Everyday I tried cleaning the TB to make the idle slow down and it would help for about 200 miles and then would start to go back up. Added spring to help pull back linkage, same thing. Finally sprayed WD40 into the shaft bearings with the little tube, worked the linkage a few times, wiped out the excess before starting and never had another problem for the rest of the trip.
Advanced
Joined: Jun 2015
Posts: 75
Likes: 5
From: Northern Virginia
Hello out there, I am Christopher. I am new here, so if this has already been address, please forgive me. 
The pedal on my 87 C4 sticks, but the opposite way. It seems hard to push sometimes. There is a monitored 25 MPH zone not too far from my house. It is hard to maintain 25 when the pedal is hard to push. When I do push it, and it sticks, it thrusts forward like I stomped the gas pedal. I try to avoid this zone because of it, but it is hard to do because there is no way around it. I try to take it out of gear and coast through the zone, but it is too long.
Any thoughts of why it would be sticking? Is there something I can do, myself, to "unstick" it?
Thanks in advance for your help!!
The pedal on my 87 C4 sticks, but the opposite way. It seems hard to push sometimes. There is a monitored 25 MPH zone not too far from my house. It is hard to maintain 25 when the pedal is hard to push. When I do push it, and it sticks, it thrusts forward like I stomped the gas pedal. I try to avoid this zone because of it, but it is hard to do because there is no way around it. I try to take it out of gear and coast through the zone, but it is too long.
Any thoughts of why it would be sticking? Is there something I can do, myself, to "unstick" it?
Thanks in advance for your help!!
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Disconnect the throttle cable from the throttle body and check it for free movement.
Sometimes the cruise control cable causes problems. Unhook it from the throttle body and see how that affects the problem.
You might have binding in the throttle body. Do a minimum idle adjustment to make sure it's set up correctly:
https://www.corvetteforum.com/forums/...post1570563689
Advanced
Joined: Jun 2015
Posts: 75
Likes: 5
From: Northern Virginia
You really should start a new thread with a new problem...
Disconnect the throttle cable from the throttle body and check it for free movement.
Sometimes the cruise control cable causes problems. Unhook it from the throttle body and see how that affects the problem.
You might have binding in the throttle body. Do a minimum idle adjustment to make sure it's set up correctly:
https://www.corvetteforum.com/forums/...post1570563689
Disconnect the throttle cable from the throttle body and check it for free movement.
Sometimes the cruise control cable causes problems. Unhook it from the throttle body and see how that affects the problem.
You might have binding in the throttle body. Do a minimum idle adjustment to make sure it's set up correctly:
https://www.corvetteforum.com/forums/...post1570563689
8th Gear
Joined: Jun 2018
Posts: 8
Likes: 0
Did disconnecting
Hello out there, I am Christopher. I am new here, so if this has already been address, please forgive me.
The pedal on my 87 C4 sticks, but the opposite way. It seems hard to push sometimes. There is a monitored 25 MPH zone not too far from my house. It is hard to maintain 25 when the pedal is hard to push. When I do push it, and it sticks, it thrusts forward like I stomped the gas pedal. I try to avoid this zone because of it, but it is hard to do because there is no way around it. I try to take it out of gear and coast through the zone, but it is too long.
Any thoughts of why it would be sticking? Is there something I can do, myself, to "unstick" it?
Thanks in advance for your help!!
The pedal on my 87 C4 sticks, but the opposite way. It seems hard to push sometimes. There is a monitored 25 MPH zone not too far from my house. It is hard to maintain 25 when the pedal is hard to push. When I do push it, and it sticks, it thrusts forward like I stomped the gas pedal. I try to avoid this zone because of it, but it is hard to do because there is no way around it. I try to take it out of gear and coast through the zone, but it is too long.
Any thoughts of why it would be sticking? Is there something I can do, myself, to "unstick" it?
Thanks in advance for your help!!
Drifting
Joined: Aug 2009
Posts: 1,972
Likes: 243
Can be indicative of worn bearings on the butterfly valve shaft. When the engine is running, there is vacuum in the intake manifold that is working to “suck” the closed butterfly valves (throttle blades) against the bores. With slop in the bearings the blades are out of alignment with the bores and hence stick when you hit the gas pedal until they break free.
I didn’t catch what year C4 this is, but if you have ASR also consider the throttle cable adjustment process outlined in the FSM.
I didn’t catch what year C4 this is, but if you have ASR also consider the throttle cable adjustment process outlined in the FSM.
3rd Gear
Joined: Aug 2020
Posts: 3
Likes: 0
ok all i have posted a couple posts concerning my vette was ideling high.
i replaced the TPS sensor and checked the volts.
today i found out what i think it is
my gas pedal is actually sticking
i can feel it click when i depress the pedal and if i put my foot under the pedal and lift it up i can feel the pedal click and then my idle goes back to normal
every time my idle gets high i have todo this to get it out of place
anybody ever have this before
i replaced the TPS sensor and checked the volts.
today i found out what i think it is
my gas pedal is actually sticking
i can feel it click when i depress the pedal and if i put my foot under the pedal and lift it up i can feel the pedal click and then my idle goes back to normal
every time my idle gets high i have todo this to get it out of place
anybody ever have this before
Have you found a solution yet? I would think it's the spring or the whole gas pedal assembly that might need replacement.
