07-08-2014, 06:42 AM
Larry,
As I read your comments, I agree with Chappell. I think once the sensor is eliminated, it is air flow.
My memory is air comes into the fan, then into the generator compartment, forward through the radiator and out the bottom of the radiator shroud.
With your problem being while moving, low air pressure area near the fan intake or high pressure area at the shroud outlet fighting the exhaust of air from the radiator would possibly create your symptom. Chappell seems to have a small impact on his coach from moving through the air.
Since I am no expert, you would want more learned folks to chime in.
As I read your comments, I agree with Chappell. I think once the sensor is eliminated, it is air flow.
My memory is air comes into the fan, then into the generator compartment, forward through the radiator and out the bottom of the radiator shroud.
With your problem being while moving, low air pressure area near the fan intake or high pressure area at the shroud outlet fighting the exhaust of air from the radiator would possibly create your symptom. Chappell seems to have a small impact on his coach from moving through the air.
Since I am no expert, you would want more learned folks to chime in.
Rudy Legett
2003 Foretravel U320 4010
ISM11 450 hp Allison 4000R
Factory Authorized Aqua Hot Repair Center
Southeast Texas Area