Lubrication of any throttle linkage/component is forbidden. Keeping them clean is all that is recommended.
If you have heavy resistance pulling the gas pedal back up, it would seem that the problem is at the gas pedal assembly as it is free-floating where the throttle cable is attached. Dust and hair debris in this area can cause problems as can misaligned floor mats and carpet.
If you have heavy resistance pulling the gas pedal back up, it would seem that the problem is at the gas pedal assembly as it is free-floating where the throttle cable is attached. Dust and hair debris in this area can cause problems as can misaligned floor mats and carpet.