I have a leak on the passenger side inside at firewall during rain. I heard it could be cowl drain plugged up. It's been parked outside a long time (cowl full of small leaves). Are there any suggestions.
If it is like 61 there is no upper drain. The cowl drains into the body fender area then drains out at bottom.
You may have a hole. Or a bad seal around the heater box.
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Thank you. I'll check the seal.