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2008 Chevrolet Silverado 3500 HD LTZ 6.6L Poor Idle Quality, Surge, MIL Lamp on
Posted to GM Driveability on 4/12/2023 7 Replies

Morning all, found that this truck has an intermittent high fuel rail pressure after cold soak. Check the adjustable low side fuel pressure regulator on the after market lift pump and at 9 psi, lines been replaced and cant find any restrictions. Also had f...

7 Replies Received (View Replies)

  Related Documents & Media  2008 Chevrolet Silverado 3500 HD LTZ

 
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Silverado 3500 HD LTZ

VIN 1GCJC33638
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, MIL Lamp On
OccursCold, Intermittently

Trouble Codes

P0088Fuel Rail Pressure Too High
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Silverado 3500 HD LTZ

VIN 1GCJC33638
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, MIL Lamp On
OccursCold, Intermittently

Trouble Codes

P0088Fuel Rail Pressure Too High