× 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
2000 Chevrolet Blazer LS 4.3L Poor Idle Quality, Hesitation, Surge, Stall, MIL Lamp on
Posted to GM Driveability on 9/11/2015 31 Replies

Hello everyone,

We have another 'doozy' and would appreciate your feedback; customer came back in to shop after replacing the oxygen sensor, wires and plugs with a intermittent surge, rough idle complaint.

Found the oil pressure sending unit to be leaking oi...

31 Replies Received (View Replies)

  Related Documents & Media  2000 Chevrolet Blazer LS

 
Message Closed

car Vehicle Data

2000 Chevrolet Blazer LS

VIN 1GNCT18WXY
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Surge, Stall, MIL Lamp On
OccursIntermittently

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed

car Vehicle Data

2000 Chevrolet Blazer LS

VIN 1GNCT18WXY
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Surge, Stall, MIL Lamp On
OccursIntermittently

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0420Catalyst Efficiency Below Threshold (Bank 1)