Ban the Can: Injecting 134a Into Your A/C May Do More Harm Than Good
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When you’re on the road and all that’s blowing through the vents is warm air, it’s tempting to go to a parts store and buy a one-pound can of R134a, the kind with a hose on it that you can hook up to charge the A/C system. But you’ll risk doing more harm than good.
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