O.k.,let me post the info on this.I am wondering if you have this installed or install it if this will solve the water entering,my guess is the water entering is causing this for sure here and the water entering issue needs resolved.
TECHNICAL Bulletin No.: 08-06-04-054A Date: January 07, 2010 Subject: Snow or Ice Ingestion into Air Cleaner Element, malfunction indicator lamp (MIL) Illuminated, Engine Power is Reduced Message Displayed, DTC P0101 Set (Perform Repair as Outlined) Models: 2007-2010 Chevrolet Silverado 2500/3500 Series 2007-2010 GMC Sierra 2500/3500 Series Equipped with Duramax(TM) Diesel Engine (RPO LMM) Please Refer to GMVIS Supercede: This bulletin is being revised to remove the graphic, update the Parts and Correction information and add information to advise a customer. Please discard Corporate Bulletin 08-06-04-054 (Section 06 - Engine / Propulsion System). Condition Some customers may comment on the malfunction indicator lamp (MIL) being illuminated and an Engine Power is Reduced message being displayed. The technician may observe DTC P0101 set as current or in history. Cause This condition may be caused by snow being ingested into the air cleaner housing and accumulating in the air cleaner element, resulting in restricted airflow into the engine. Correction 1. Verify the condition by questioning the customer as to when the condition occurs (such as during or right after a snow storm). ◊If the condition occurs as described above, proceed to Step 2. ◊If the condition does not occur as described above, refer to Diagnostic Trouble Code (DTC) List Vehicle in SI. 2. Remove the air cleaner element. Refer to Air Cleaner Element Replacement in SI. 3. Inspect the air cleaner element for the following conditions: 1. Packed snow 2. Frozen ice 3. A soaking wet condition that would indicate previous snow ingestion 4. Excessive debris and contamination as a result of the ingestion ◊If any of the above conditions are observed, replace the air cleaner element. Remove any snow or ice that may have accumulated in the air intake duct. Note Winter covers for trucks that are equipped with the Duramax(TM) Diesel Engine are included with vehicle orders that ship to the following areas: All of Canada, and the following states: Alaska, Colorado, Idaho, Maine, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, South Dakota, Vermont, Wisconsin, Wyoming. These vehicles should not need a new cover. 4. Install the grille opening section ONLY (if using the 2 piece cover) of the winter front cover following the usage guidelines provided in the Owners Manual for the appropriate type winter cover. ◊If the customer does not have a cover, obtain and install the grille opening section ONLY, GM P/N 25822811 (GMC) or GM P/N 25822812 (Chevrolet). 5. The grille opening cover MUST BE installed to ensure a complete repair, BEFORE ENCOUNTERING SNOW. This repair allows warm air to be circulated into the air cleaner. Additional Information to Advise Customer Important If the vehicle is driven in a snow storm before installing the winter cover and the customer chooses to resolve the issue, they must follow this procedure using the following steps: 1. Remove ANY ice or snow that may have accumulated in the air intake duct, BEFORE REPLACING the air cleaner element. 2. INSTALL the winter cover BEFORE continuing to drive the truck. 3. Turn OFF the ignition, and all electrical accessories and components. 4. Remove the key from the vehicle, THEN open and close the door. 5. WAIT for 2 minutes to allow the (ECM) to power down. This can be verified by watching for the instrument panel cluster (IPC) gage needles to drop slightly. 1. Allowing the ECM to power down will let DTC P0101 revert to a History DTC and the vehicle should return to full power if the issue has been eliminated. 2. Advise the customer to take the vehicle to the dealer as soon as possible to verify the condition has been eliminated.
If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service.You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.Thanks Pete.