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Replaced car battery, now A/C has weird smell???

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Old 11-19-2019, 11:41 PM
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Replaced car battery, now A/C has weird smell???

I had Walmart replace my car battery about 3 weeks ago, and ever since, there is a strong smell coming from the A/C - even when I turn it off, but much more so when it's on - either blowing hot or cold, doesn't matter.

Hard to describe the smell, but I don't think it's mold or mildew. Perhaps an "electrical" or "burning" smell?

I've replaced the battery in this vehicle many times (including same model battery – top rated by Consumer Reports - at this same Walmart 6 years ago) - never had a problem like this!

What on earth could be going on?

Vehicle: 1999 4Runner SR5 V6 2WD ~310,000 miles

Location: Dallas TX area

Any thoughts would be greatly appreciated!


Old 11-20-2019, 07:53 AM
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Check your heater core for leaks. Does it smell like coolant? Probably just coincidence that you replaced the battery.
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