Question about 1993 Dodge Grand Caravan
How do I loosen/tighten the tensioner so I can replace my serpentine belt?
It takes a significant amount of force to release the tensioner - very difficult for one person to put the belt back on and release the tensioner at the same time. Use a 15mm wrench or ratchet-socket combo (I used the ratchet and it just barely fit... a wrench is probably the better way to go, but all my wrenches are in English, not metric... 5/8 was too big, 9/16 was too small).
Once you have the tool attached to the tensioner, pull so that the tensioner turns clockwise (if you were standing on the passenger side of the engine... if your tool is mostly head-down and handle up, pull towards the front of the van). Again, it takes a lot of force to move it, and it doesn't stay moved - if you release pressure, it brings the tension right back to the belt.
I was able to succeed by pulling on the tool with my right hand and using my left hand to slip the belt under the upper-middle part that it spins.
Posted on Feb 12, 2009
Its spring loaded. Some will take a 1/2" drive bar, other you'll need a wrench (15MM ?) in center to move it. Be careful, takes a fair bit to do if your not experienced at it.
Posted on Oct 30, 2008
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Posted on Jan 02, 2017
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Fig. Fig. 11: Accessory drive belt adjustment-3.3L and 3.8L engines
All of the belt driven accessories on the 3.3L and 3.8L engines are driven by a single serpentine belt. The belt tension is maintained by am automatic tensioner.
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