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2008 Chevrolet Silverado 3500 HD LT 6.6L Poor Idle Quality, Hesitation, Cuts out, MIL Lamp on
Posted to GM Driveability on 7/5/2016 9 Replies

Hello all. I have this Duramax that's got me frustrated... It will set dtc P0191 intermittently.. (like every Couple days or so). It all started when it set a P0087 along with reduced power mode, at that point we discovered that somebody had put an aftermarket...

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  Related Documents & Media  2008 Chevrolet Silverado 3500 HD LT

 
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car Vehicle Data

2008 Chevrolet Silverado 3500 HD LT

VIN 1GBJK34688
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Cuts Out, MIL Lamp On
OccursCold, on Accel

Trouble Codes

P0191Fuel Rail Pressure Sensor Circuit Performance
Message Closed

car Vehicle Data

2008 Chevrolet Silverado 3500 HD LT

VIN 1GBJK34688
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Cuts Out, MIL Lamp On
OccursCold, on Accel

Trouble Codes

P0191Fuel Rail Pressure Sensor Circuit Performance