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2008 Chevrolet Silverado 2500 HD LT 6.0L Fast idle
Posted to GM Driveability on 12/2/2010 11 Replies

Vechicle is from a car lot , came in with ses light on , had codes,121,2270. Cleared them and 690, 2119, caame back . Cleaned throttle body, then has fast idle. We scoped the tps's (both) found seconary to have a bad gliych. Replaced throttle body with a new g...

11 Replies Received (View Replies)

  Related Documents & Media  2008 Chevrolet Silverado 2500 HD LT

 
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Silverado 2500 HD LT

VIN 1GCHK23K18
Engine6.0 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsFast Idle
OccursAlways, Idle

Trouble Codes

P0121Throttle Position Sensor Range/Performance
P0507Idle Speed Control System Higher Than Expected
P0690ASD Relay Sense Circuit High
P2119Throttle Actuator Control - Throttle Body Performance
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Silverado 2500 HD LT

VIN 1GCHK23K18
Engine6.0 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsFast Idle
OccursAlways, Idle

Trouble Codes

P0121Throttle Position Sensor Range/Performance
P0507Idle Speed Control System Higher Than Expected
P0690ASD Relay Sense Circuit High
P2119Throttle Actuator Control - Throttle Body Performance