Category: GMC Sierra diesel check engine light

• Grok And I And The GMC

  Me: Oct. 8, 2025 What causes GMC Sierra 3500 diesel error code, continue driving, cleaning exhaust filter? Grok: Understanding the “Cleaning Exhaust Filter – Continue Driving” Message on GMC Sierra 3500 Diesel The GMC Sierra 3500 with the Duramax diesel engine (typically the 6.6L L5P in recent models) uses a Diesel Particulate Filter (DPF) in…

  Greg

  December 1, 2025

  GMC Sierra diesel check engine light, Maintenance

  Code reader, Continue driving to clean diesel particulate filter, Diesel exhaust filter, Grok, Limp Mode

• Grok, YouTube And I Fixed The GMC

  December 1, 2025  It is dangerous, frustrating and frightening to have your truck go into “Limp Mode” while pulling a trailer. It first happened between Thunder Bay and Bayfield, Wisconsin on Lake Superior. The truck operates in reduced power and speed to protect the engine. It can happen for a variety of reasons: high engine…

  Greg

  December 1, 2025

  GMC Sierra diesel check engine light, Maintenance

  Check engine light, Continue driving to clean diesel exhaust filter, Diesel exhaust filter, Diesel exhaust system, Diesel maintenance, Diesel particulate filter, Limp Mode, Reduced power

• A Day to Remember

  

  Thursday, September 18, 2025  Walkie told us to return in the morning so he could install a new air filter and clean the sensors. He called in an order for the filter yesterday, saying it would be delivered about 9:00. We arrived at 9:45. I wondered how he could get reliable deliveries in his remote…

  Greg

  September 20, 2025

  Apostle Islands National Park, Bayfield, Wisconsin, GMC diesel, GMC Sierra diesel check engine light, Little Sand Bay Campground, Bayfield, WI, Manypenny Bistro, Bayfield, WI, Turkeys, wild, Wisconsin

  Apostle Island National Park, Bayfield Wisconsin, GMC diesel, Little Sand Bay Campground