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International Automotive Technicians Network
2012 Chevrolet Silverado 2500 HD LTZ 6.6L Hydroboost
Posted to GM Chassis on 6/26/2018 5 Replies

Hey guys. This Duramax equipped Silverado develops a pulsation / buzz in the pedal after long drives. Mostly at idle and when turning. Not so much a loud buzz but you really feel it in the pedal. We have replaced the pump twice and it goes away for several...

5 Replies Received (View Replies)

  Related Documents & Media  2012 Chevrolet Silverado 2500 HD LTZ

 
Message Closed w/FIX

car Vehicle Data

2012 Chevrolet Silverado 2500 HD LTZ

VIN 1GC1KYC88C
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedHydroboost
ConditionsBuzz/Whine/Pulsate
Message Closed w/FIX

car Vehicle Data

2012 Chevrolet Silverado 2500 HD LTZ

VIN 1GC1KYC88C
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedHydroboost
ConditionsBuzz/Whine/Pulsate