What would cause smoke to come from ac vents when neither a/c or heater not on?

Asked by Aug 15, 2014 at 01:01 PM about the 1996 Ford F-150 XL SB

Question type: Maintenance & Repair

2 Answers

78,025

Most likely a leaking heater core. HTH. -Jim

1 people found this helpful.

Hopefully steam, not smoke

2 people found this helpful.

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