Nine problems related to speed control linkage have been reported for the 1999 Chevrolet Silverado. The most recently reported issues are listed below.
Throttle linkage has shown increasing pedal effort to move accelerator from the idle position. Was advised by dealer that throttle body should be cleaned, however service manual indicates throttle body should not need cleaning except for high mileage engines. A later service bulletin indicates throttle body replacement is warranted (#00-06-04-007b). Although condition began prior to expiration of warranty, dealer will not repair vehicle (mileage >36000). Since new, have also had to have both power window drive motors and regulators replaced (one under warranty and another after warranty expiration).
Throttle linkages sticking intermittently. Dealer and manufacturer were notified. Feel free to provide any further information.
Gas pedal is hard when pressing down on it. All of a sudden gas pedal will release and and vehcile will jump forward. Consumer states that dealer has been contacted. Please provide any further information.
In order to get vehicle to move driver has to press really hard on gas pedal, then car will take off. Dealer said it was caused by carbon build up in throttle body.
While parked with the ignition off, vehicle suddenly accelerated in reverse, causing a minor collision which resulted in minor injuries. Dealer and manufacturer have been notified.
Accelerator linkage sticks at idle speed. Causes pedal to travel too far once "unstuck" high power take offs from stopped.
Fuel throttle linkage sticks when pressing down on accelerator pedal causing the truck to lunge forward when gas pedal releases. Must press hard on gas pedal to get it truck to go forward. This happens most of all of the times I start the truck and quite often as I am driving and let up on the gas to slow down. Most often it sticks when I acelerate again even when driving.
Sticking accelerator problem started less than 20,000 miles. Accelerator linkage needs to be replaced . Accelerator pedal has to be mashed with excessive force to become unstuck which increases unintended speeds. Dealer was notified. Jg.
Accelerator pedal sticks during acceleration from idle. This causes "jack rabbit" acceleration once pedal lets loose. Very dangerous problem in bumper to bumper traffic. Lubricated external throttle linkage without success. Problem seems to be internal where linkage meets engine component.