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2007 Chevrolet Silverado 1500 Classic WT 4.3L Poor Idle Quality, Hesitation, Cuts out, high trims
Posted to GM Driveability on 11/2/2021 30 Replies

Got a tough one. Lean codes for both banks. Rough idle intermittently, extended crank, intermittently and intermittently engine bogs down and no throttle response, briefly. Noted trims max out high under load, but trims normal at idle or cruise. Every time...

30 Replies Received (View Replies)

  Related Documents & Media  2007 Chevrolet Silverado 1500 Classic WT

 
Message Closed w/Summary

car Vehicle Data

2007 Chevrolet Silverado 1500 Classic WT

VIN 1GCEC14X27
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / spider
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Cuts Out, High Trims
OccursCold, Hot, Under Load, on Accel, Intermittently

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
Message Closed w/Summary

car Vehicle Data

2007 Chevrolet Silverado 1500 Classic WT

VIN 1GCEC14X27
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / spider
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Cuts Out, High Trims
OccursCold, Hot, Under Load, on Accel, Intermittently

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)