Here's my throttle body/TPS story.
FWIW, videos on the internet show taking the throttle body off entirely, cleaning it, replacing the sensor, and putting the assembly back on. You have to be really careful ordering the right throttle body or sensor.
Also, my old throttle body and sensor are still on our '04 Escalade ESV, and I have not had another P2135 code (knocking on simulated wood).
FWIW, videos on the internet show taking the throttle body off entirely, cleaning it, replacing the sensor, and putting the assembly back on. You have to be really careful ordering the right throttle body or sensor.
Stability System Disabled/Engine Power Reduced
This is probably the most dangerous thing that's ever happened to us in a vehicle, & I can't believe a car manufacturer would actually incorporate a feature like this. Feature? Huh? In hectic Florida traffic our new-to-us, one-owner, 100K mile, 2004 Escalade ESV went into Stability System...
www.tahoeyukonforum.com
Also, my old throttle body and sensor are still on our '04 Escalade ESV, and I have not had another P2135 code (knocking on simulated wood).