View Single Post
  #27  
Old 12-16-2016, 05:42 PM
Eric H's Avatar
Eric H Eric H is offline
Administrator
 
Join Date: Jun 2002
Location: So. Calif
Posts: 11,565
The grinding shuddering sounds like the traction control might be kicking in for some reason. different sized tires will cause problems for some electronically controlled AWD systems, as will a bad wheel or driveshaft speed sensor.

The shift motors are a problem on the GM trucks, the internal potentiometer goes bad and it can't tell what range it's in.
Reply With Quote