Traditional gasoline car fault

2007 GMC Yukon Denali P0776 and P0877: Do I Need a New Transmission?

My 2007 GMC Yukon Denali is showing trouble codes P0776 and P0877. The vehicle slips into limp mode, which affects drivability. I'm wondering if this requires a complete transmi...

Yukon Denali | P0776

How to Reset P0877 Error Code on 2007 Chevy Silverado | No Start in Low Gear

I'm unable to clear the P0877 diagnostic trouble code on my 2007 Chevrolet Silverado using a Walmart-branded OBD2 scanner. The vehicle displays 'Low 1' on the shifter, but it's ...

2007 Chevy Silverado | P0877

2006 GMC Duramax with Allison 1000: P0843 and P0877 Transmission Fluid Pressure Codes Explained

I recently encountered two transmission fault codes on my 2006 GMC Duramax with the Allison 1000 transmission: P0843 (Transmission Fluid Pressure Sensor/Switch A Circuit High) a...

2006 GMC Duramax Allison 1000 | P0843