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2008 Chevrolet Silverado 1500 WT 4.3L Poor Idle Quality, Stall
Posted to GM Driveability on 11/24/2021 15 Replies

Have this truck that both st fuel trims reach -15 to -20 at idle. Cleaned t-body, ck fuel press(ok), replaced maf old maf pids looked good. On cold start is hard to start but will start up with slight throttle applied. Iat pids bounce from -4 to actual tem...

15 Replies Received (View Replies)

  Related Documents & Media  2008 Chevrolet Silverado 1500 WT

 
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Silverado 1500 WT

VIN 1GCEC14X48
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Silverado 1500 WT

VIN 1GCEC14X48
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)