Post by Phil Nottingham on Oct 2, 2014 17:02:55 GMT
Strange as the ducting is built inside the dash and is not liable to blocking at all from leaves etc. There may be remnants of broken screen or a mouse nest hopefully uoccupied. How long has it been like this - mine is very powerful on both sides.
There are short flexis well being the dash and inaccessible which are glued securely on. I suppose it could split/leak - on full speed fan on defrost the draft will be noticeable. If poor on demist only then its adjustment but unlikely as both would be surely affected
Phil - 1964 P5-Coupe PMB***B & P5B-saloon LHO***L & other classic Rovers & Land-Rovers