does anyone know the process for replacing thermostat on my 08 or where to find that info

 

Process?? Get in there and change them.lol . There are two of them. Four bolts holding the housing on. Pull the housing off and both thermostats come out with it. Change them put them back in. Watch. http://www.google.com/url?sa=t&sourc...dxAK4f77PTKEOQ

 

This might be a little late. Go to youtube type in 6.4 thermostat replacement.
Look for p00b7 po128 thermostat and gasket.
By dieseltechron. It's seven minutes of good info. I replaced mine when I changed my block heater. Also you want to evacuate the system of trapped air. Hope this helps.

 

Remove top hose, remove t stat housing 4 bolts. Replace, reinstall. May want to drain some coolant first from bottom of rad.