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It could be anything. First, check your coolant level. If it's low, add more. If heat still isn't working after checking coolant level, then it could be your thermostat. Follow the top hose from your radiator, that's where it's located. If it's still not working, then you have a leak somewhere in the system. Take it to a shop.
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∙ 16y agoThis answer is:
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