2009 389 Peterbilt Issue. NEED HELP

613186

{"text":"My 09 Peterbilt 389 is acting weird. I t is clicking the miles off way too fast - It is giving 5 miles for every 1 mile. Has anybody had the same issue before? How did you fix it","pics":"[]","canComment":true}

211886

{"replyTo":"","text":"Get it into a shop asap... Sounds like it's an issue with the speed sensor. Driving cross country 3000 miles will rack up 15000. Killing your resale value","replyToPid":0}