Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1893 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 6.6L (LMM) - DTC P1448 TOP DTC P2510)DTC P2463CIRCUIT/SYSTEM VERIFICATION
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Circuit/System Verification
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Circuit/System Verification
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Verify that DTCs P003A, P0047, P0048, P0087, P0101, P0201-P0208, P02A1, P02A5, P02A9, P02AD, P02B1, P02B5, P02B9, P02E0, P02E7-P02E9, P029D, P0234, P0299, P0300-P0308, P0401, P0402, P046C, P0545, P0546, P0698, P0699, P2032, P2033, P2269, P2453, or P2563 are not set.
- If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Verify the correct DPF is installed on the vehicle by performing the following:
- Record the DPF part number from the DPF shell.
- Observe the vehicle information system (VIS) RPO list for the RPO ZK3.
- The application of RPO ZK3 should match the application of the part number on the DPF shell, as listed below:
- With RPO ZK3, the last 3 digits on the DPF shell are 221.
- Without RPO ZK3, the last 3 digits on DPF should be 508.
- If the DPF shell part number does not match the RPO application, replace the DPF with the correct part.
- Engine running at a warm stabilized idle, observe the scan tool Particulate Filt. Pressure Variance parameter. The value should be between 0-3 kPa.
- Verify the following scan tool parameters:
- Engine Run Time Since Last DPF Regeneration parameter-The value should be less than 17.5 hours.
- Fuel Used Since Last DPF Regeneration parameter-The value should be less than 213 liters (57 gallons).
- Distance Since Last DPF Regeneration parameter-The value should be less than 804 kilometers (500 miles) at sea level, or less than 603 kilometers (375 miles) when equal to or above 10,000 feet altitude.
- If any of the parameters are greater than the specified range, perform a DPF Service Regeneration. Refer to Diesel Particulate Filter (DPF) Service Regeneration .
- Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.