Search results

Search the forum Search Articles
  1. bsmall2800

    OBDII "Not Ready" for SMOG TEST

    I have a 2020 GMC 3500 Duramax and went to get it smog check. The guy said that my OBDII is "NOT READY" . He asked if the batteries or any work done on the truck lately. No to both. He said drive it around for about 100 miles and hopefully things will reset and able to complete the Smog...
  2. bsmall2800

    LMM: 245/75R-16's to 265/70R-17's on a 2008 GMC LMM

    I know this topic has been discussed in lengths in the past but here is the latest as of May/2014, at least from my prospective, and knowledge. I finally replaced my 245/75R16’s with 265/70R-17’s, which through off my shifting times with the Allison transmission, and the spedo no surprise...
Top Bottom