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2003 GMC Envoy XL SLT 4.2L Poor Fuel Economy, MIL Lamp on
Thanks in advance for any help with this one! This Envoy came in a few months ago complaining bout fuel milage. We did a complete tune up: plugs, boots, fuel filter, and cleaned the throttle plate. We also told him to run some Sea Foam in the fuel to help clea...
FIX posted 10/19/2011
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Message Closed w/FIX
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18 Replies Received
18 Replies Received
Related Documents & Media | VIN | 1GKET16S73 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Fuel Economy, MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
| P0495 | Cooling Fan Speed High |
Message Closed w/FIX
Vehicle Data
2003 GMC Envoy XL SLT
| VIN | 1GKET16S73 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Fuel Economy, MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
| P0495 | Cooling Fan Speed High |
Video