Speed Control Linkage problems of the 2000 GMC Sierra

Throttle becomes sticky when closed. As a result extra force is required on the accelerator when initialy depressed. This is an extremly dangerous situation especialy in parking lots or other tight, highly populated areas since extra force is required on the accelerator to "break it free" once it does "break free" the vehicle can lunge/lurch foreward uncontroled. This situation makes smooth throttle control unobtainable. The problem seems to get worse with higher ambient temperatures as I assume the throttle plate expands when hot and binds in the throttle body. Cleaning the throttle body provides relief for a very short period. I have read about this problem on several internet message boards and believe that gm offers an updated throttle body to correct this problem. Due to the extreem safety hazzard I feel that gm is neglegent in not offering to correct this problem at their cost, as gm does seem to be aware of the deficiency.

Antilock system engages while coming to a slow stop happens almost constantly. Throttle sticks on initial contact.

We purchased a used 2000 GMC and within a month experienced experienced throttle sticking closed so severe you could not move the vehicle. Then if you applied a lot of pressure it would lurch forward. We took it in after a couple of months to a local GMC dealer and they said it was the throttle body and it was warped and would need to be replaced. They had no explanation why it would have become warped. We paid 643. 00. When we picked up the vehicle my wife went online to research if there were any problems and came across a reference to a TSB so we checked out NHTSA and under defects was listed the investigation that is still open about the throttle body( ea02-015) . We were very upset and took in copies of the TSB and spoke to the service manager. On our receipt was listed another TSB #00-06-04-007b as to why they replaced it. But with a charge. We felt they should had disclosed this problem and that odi was investigating it . The service manager said he would call GMC and we received a call the next day that GMC would be sending us a check for 400 to cover the part. That seems fair but we definately feel this is a safety issue. Had we not been older drivers and very cautious we could have been involved in an accident. It could have stuck open as well as closed.