2004 GMC Sierra 1500 SLE 5.3L Monitors
Thank you for your help. This truck will not pass the catalyst, or Evap. monitors. Also it will pass the O2 sensor monitor, both heater and performance, and then when you park the vehicle overnight they both go back to not passed. I am suspecting a PCM problem...
Summary posted 5/5/2017
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Vehicle Data2004 GMC Sierra 1500 SLE
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Message Closed w/Summary
Vehicle Data
2004 GMC Sierra 1500 SLE
VIN | 2GTEK19T14 |
Engine | 5.3 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / emision monitors |
Emissions | OBD-II Compliant |
Symptoms | Monitors |