My 2002 yukon denali shuts off when I come to a stop or slow down. The computer reads evap system service so I had the fuel pump replaced and not only is it still doing it but my car will not pass smog because of the evap problem. Any suggestions.
You will need to diagnose further, what is the four digit code? No sense in throwing parts at the truck in hopes it fixes the issue.
Search GMC Yukon Questions
GMC Yukon Experts