- 691
- 1,053
- 93
- Location
- La Crosse, WI
CTIS is set at 85 PSI on an MTV, after filling and the light going solid, the quick release valve going between the front axle and the two rear axles, the one that's mounted next to the transmission on the frame rail, remains open draining the front tires down a bit before it closes. This resulted in the rears being up to 95 PSI in the front's being 82 PSI.
Seems to me like the quick release valve is faulty and draining pressure from the front side when it should be closing after filling. It was doing this the other day but there was only a few PSI difference, was a little colder and now It's much more significant difference. All tires on every axle are perfectly balanced left to right side.
Only other thought is possibly an obstruction in the line causing the quick release valve to see a pressure differential due to the flow.
Any thoughts? I have removed the filters in the wheel valves. System's been working perfectly up until this point.
Seems to me like the quick release valve is faulty and draining pressure from the front side when it should be closing after filling. It was doing this the other day but there was only a few PSI difference, was a little colder and now It's much more significant difference. All tires on every axle are perfectly balanced left to right side.
Only other thought is possibly an obstruction in the line causing the quick release valve to see a pressure differential due to the flow.
Any thoughts? I have removed the filters in the wheel valves. System's been working perfectly up until this point.