I have a 52plate LDV convoy 400 LWB 2.5i transit engine - when i put the heaters on i get full heat through the windscreen demister slots, the vents on the far left & right always blow warm air weather i have them on hot or cold but the centre vents either side of the radio are only ever freezing cold.
Am i right in thinking it could be that pipes have become detached inside the engine bay somewhere ??



