I recently replaced the water pump and belt in my 2001 Pontiac bonniville. Now my AC doesn't work. What can be the problem?

Asked by Jun 25, 2017 at 07:18 AM about the 2001 Pontiac Bonneville

Question type: Maintenance & Repair

1 Answer


Make sure the new belt is on all of the pulleys and installed correctly. One of those pulleys is for the air conditioning compressor. If you somehow got the belt on without it going around the air conditioning compressor the air conditioning won't work. Also check the electrical plug at the air conditioning compressor. It may have gotten bumped off the plug when the belt was being installed. HTH. - Jim

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