Hi all,
05 SSR automatic throwing a P0308 code. Hoping it’s the most simple thing, plugs. Anybody have experience with this code? What did you finally find as the assignable cause?
Thanks gang,
Bob
I have seen this a few times in a 5.3, may be the same with the 6.0. In two cases it was a cracked insulator on the #8 plug. Why always the #8, I have no idea. both were Chevy trucks with over 120K miles and may have had the original plugs.
Pull the plug and check it before diving any deeper.