Question about Chevrolet Silverado 2500HD
Try wiggling the wires in the accelorator sensor connector.sometimes the wires break inside the insulation and it is real hard to find.they usually break from 1 to 4 inches from the connector.if you dont find the problem there i would disconnect the computer and see if there is corrosion in the connectors.i have seen this happen to.hope this helps.good luck.
Posted on Mar 30, 2011
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Posted on Jan 02, 2017
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Limited throttle mode--The control module will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.
Throttle default mode--The control module will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.
Forced idle mode--The control module will perform the following actions:
Limit engine speed to idle by positioning throttle position, or by controlling fuel and spark if throttle is turned off.
Ignore accelerator pedal input.
Engine shutdown mode--The control module will disable fuel and de-energize the throttle actuator.
Powertrain Control Module Description for the 4.8L, 5.3L and 6.0L engine
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