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How to depressurize fuel system 2012 gt

3K views 1 reply 2 participants last post by  kaper232 
#1 ·
Hey, about to do a install of a boss manifold and I've read some say depressurize the fuel system some say don't worry. Well I'd like to be safe and depressurize the system but I don't know how. I understand the is a switch in the truck but have no idea where it is.
 
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