Fuel Feed Pipe Restriction

Some 2021-2023 Escalade, Silverado 1500, Tahoe, Suburban, Sierra 1500 and Yukon models equipped with the 5.3L V8 engine (RPO L82, L84) or 6.2L V8 engine (RPO L87) may have Reduced Engine Power message displayed on the Driver Information Center. The Check Engine MIL also may be illuminated or the MIL may turn off with no drivability concerns. DTC P2635 (Fuel Pump Flow Performance) and DTC P060C (Control Module Main Processor Performance) may be set in the Engine Control Module (ECM).

These conditions may be due to debris causing a restriction in the fuel feed pipe. (Fig. 5) Follow the diagnostics in Service Information for DTC P2635 to determine if there are any fuel system concerns.

 

Fig. 5

 

If a concern is not isolated, replace the fuel feed pipe. Refer to Fuel Feed Pipe Replacement in Service Information. After installing the fuel feed pipe, re-evaluate the operation of the fuel system.

Refer to Bulletin #22-NA-220 for more information and part numbers.

– Thanks to Bryan Salisbury

 

 

2024 Models Included in Latest AFIT Software Update
Radio Remains On After OTA Update

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