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On a 1991 GMC Jimmy the ac heater and vents are not working not blowing air is this the blower if so how much does that run and how easy to fix?

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Wiki User
May 20, 2005 3:21PM

Most likely your problem is just the switch itself that controls

the speed of the fan or a fuse. These are the easiest and cheapest

things to check first. You can get the swithc at a local parts

store or from a GM dealer. If that doesn't work check for loose of

broken wires. It all that fails replace the blower motor. Check the

fuse first.

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