Can you bypass the ac pulley when changing a serpentine belt in a 96 Plymouth grand voyager se 3.3 l if so how long should the belt be?

You can almost always bypass the A/C Compressor in any car. Most of them cam with or without A/C. :-) OPTION 1) Call the parts store and ask for the serpentine belt of a 96 PLymouth Grand Voyager SE. If they ask "with or without A/C" then say "without" and it should be the belt you need. If they don't ask, then they never built that car without A/C so go to option #2. (Note: An SE may just be an options package that includes A/C so you may want to ask for base model parts) OPTION 2) note the pulleys on either side of the A/C compressor. Hold a string from the center of one to the other. Note that length. Now, holding the string in the same 2 positions, follow the path of the belt around the A/C compressor. Note that length. Subtract the first measurement from the last and go to parts store and get 3 belts that are the same width and thickness as the original. Get one with the length you derived in the string test and one a little shorter and one a little longer. Hopefully one will work just right and you can take the other 2 back. :-) I JUST DID THIS TODAY * I drove my 1998 Voyager SE 3.3L v6 to a parts store to hunt for a belt without A/C. The replacement that is in ALL parts store computers have the WRONG ONE for this to work, but it is POSSIBLE. the belt size is 860KP. it may have more numerals in front of that, but if you get a belt that size, you can bypass the A/C (which just fell apart; broken brackets, etc -- American auto engineering). The major difference in the routing is THE WATER PUMP WILL BE DIRECTLY DRIVEN FROM THE CRANKSHAFT PULLEY AND THE GROOVES OF THE BELT WILL BE FACING THE WATER PUMP'S SMOOTH PULLEY; WHICH IS OPPOSITE FROM WITH THE A/C. Keeping that in mind, you'll have a tight enough fit until you can figure out how youre gonna repair the original problem, but this will make the van more than a ton of cheap metalurgy (sp) than it is. I love my Voyager, but it should have been made my more reliable parts and metals. Everythings gone aluminum, just think of whats riding on your tires (including you). And space is limited under the hood, as if this thing wasnt designed to break. Truth is, its not designed to be fixed; I call these 60 month cars, "throwaways."