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Re: Duramax Fuel Test Fitting
Posted to Tool & Equipment Forum on 3/9/2018

i have that exact gauge and i love it. quick easy and reliable. if you are working on duramax on a regular basis you want one. before i bought mine i diagnosed a couple buy pulling the schrader valve out of the test port, clamping a heater hose over it and usi... Login to read more.