There is one duct that goes into the belly pan to keep the liquid in the tanks from freezing. On my trailer 25' it is the smaller duct, a 2" diameter I think. That duct is open on the end, which can be a highway for any critter (maybe a mouse) that finds it way into the belly. I doubt there is, but there could be a nest. If you do not find a loose coupling, as suggested above, or a crimped partially closed flexible duct, you might check for a blockage.
__________________
Alan
2014 Silverado LTZ 1500 Crew Cab 5.3L maximum trailering package
|