× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1999 Chevrolet K2500 Suburban 7.4L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on
Posted to GM Driveability on 2/6/2004 16 Replies

This vehicle came to our shop with a check engine light on and a P0171 lean bank one code. We checked it over and replaced the upstream 02 sensor, cleared the code and returned the vehicle to the customer. Then the fuel pump quit, and we replaced that. Then th...

16 Replies Received (View Replies)

  Related Documents & Media  1999 Chevrolet K2500 Suburban

 
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet K2500 Suburban

VIN 3GNGK26J3X
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire, MIL Lamp On
OccursIntermittently

Trouble Codes

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

car Vehicle Data

1999 Chevrolet K2500 Suburban

VIN 3GNGK26J3X
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire, MIL Lamp On
OccursIntermittently

Trouble Codes

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