Chevelle Tech - View Single Post - 2013 GMC 3/4 ton P/U DEF heater problem
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post #3 of (permalink) Old May 21st, 19, 4:59 PM
marcrose
Tech Team
autumngold
 
Join Date: Nov 2011
Location: canada
Posts: 880
Re: 2013 GMC 3/4 ton P/U DEF heater problem

def fluid needs to be heated when cold temperatures so that it can be injected properly to pass emissions guidelines.PITA ,most places wont let you remove them and pass inspection.Still gives trouble up to 2018.Was just a bandaid solution since it was implemented.

1970 ls-5 numbers matching
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