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2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I did the balloon on my leak detector mounted on the truck pump after I heard it click. Bad pump. Replaced it with a pick and pull special and the baloon inflated. After replacing the tank, and the LDP no more code 0455, and passed emissions today. Yahoo.