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2004 GMC Sierra 2500 HD 6.6L MIL Lamp on
Replaced egr VACUUM pump and P0404 dtc remains; do we need to change out the EGR valve as well or the EGR pressure sensor? After looking into issue a bit more the EGR valve and vacuum pump are common fixes - but we have changed out the EGR vacuum pump already ...
FIX posted 9/27/2016
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Message Closed w/FIX
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6 Replies Received
6 Replies Received
Related Documents & Media | VIN | 1GTHC23164 |
| Engine | 6.6 L / 8 cyl / DIESEL |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / Diesel |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0404 | EGR Control Circuit Range/Performance |
Message Closed w/FIX
Vehicle Data
2004 GMC Sierra 2500 HD
| VIN | 1GTHC23164 |
| Engine | 6.6 L / 8 cyl / DIESEL |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / Diesel |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0404 | EGR Control Circuit Range/Performance |
Video