Air pressure jumping in front tires
I have a Freightliner Tag with 22.5 tires. I set rear tires at 85-88lbs and fronts at 117lbs. After driving rears jump up to 98-105. The fronts will hit 143-147. The fronts are within 1-3 lbs of ea...
Forum Discussion
I agree-- first suspect (since we don't know actual weights) and tires is that the fronts are under-inflated.
A 28 PSI rise in fronts vs half that for the drives strongly suggests under-inflation leading to over-flexing leading to more temperature rise.
Another observation: If 117 is "under-inflated" (and likely near PSI needed to carry maximum rated load), then would sure see if the next size/load range tire would fit.
On edit:
Please post what tires (brand, model and size) you have.
If you have the wheel position weights (better) or axle weights, and GAWR (from plaque near driver's area) please post those as well
A 28 PSI rise in fronts vs half that for the drives strongly suggests under-inflation leading to over-flexing leading to more temperature rise.
Another observation: If 117 is "under-inflated" (and likely near PSI needed to carry maximum rated load), then would sure see if the next size/load range tire would fit.
On edit:
Please post what tires (brand, model and size) you have.
If you have the wheel position weights (better) or axle weights, and GAWR (from plaque near driver's area) please post those as well
