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2001 GMC Yukon SLE 5.3L Excessive Emissions
Posted to GM Driveability on 4/1/2017 7 Replies

Secondary air injection not completing smog monitor.

Air pump and check valve have been replaced .

Has a transmission code . Tried running drive cycle many times unsuccessful . Any ideas to complete Smog secondary air injection would be greatly appreciate .

7 Replies Received (View Replies)

  Related Documents & Media  2001 GMC Yukon SLE

 
Message Closed w/Summary

car Vehicle Data

2001 GMC Yukon SLE

VIN 1GKEK13T11
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions
OccursAlways
Message Closed w/Summary

car Vehicle Data

2001 GMC Yukon SLE

VIN 1GKEK13T11
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions
OccursAlways