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  • Chevy G20
  • Dodge Ram

How do you replace the belt tensioner on a 1990 Chevy Van?

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βˆ™ 2015-07-15 21:00:30

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Serpentine belt tensioner replacement. Not easy because, if it's like my 1989 G20, it's difficult to get at. However, once you access it: take a wrench to the lower pulley where there's a hexagon center bolt, twist counter clock-wise against the spring force to relieve the belt tension until you can slip the belt off the pulley. Now remove the center bolt on the spring housing. There's a self locking nut on the rear side of the mounting bracket that you will have to hold. That center bolt goes through the mounting bracket and two other struts so you have to make sure they align when you put things back together. (By the way, one of those struts sits on top of the bolt holding down the thermostat housing and makes replacing the thermostat a tough job.)

Install the new tensioner in it's relaxed state making sure the anti-rotation pin fits into the hole in the mounting bracket. When you have the center bolt tight, twist against the spring force - counter clock-wise - until you can slip the belt back into place. Make sure the belt is aligned correctly on all the pulleys.

Good luck.

2015-07-15 21:00:30
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Q: How do you replace the belt tensioner on a 1990 Chevy Van?
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