Black roof vent intentionally plugged
I recently picked up a used 2007 Nash TT and have noticed a strong black tank odor immediately after towing it. Today I removed the existing roof top vent to install a swivel vent and discovered the b...
Forum Discussion
I can picture someone trying to find the source of the malodorous stench, not understanding the purpose of the vent, and having an "AHA!" moment, stuffing the rag to fix the problem. That's my take on it, anyway.
