Originally Posted by Ron & Alice
How can we tell what our tire pressure should be, and how often should we check it? (both truck & trailer?)
TKX as usual,
Hi Alice, you asked for both TT and TV.
The TT tires should be at max cold side wall pressure. This helps make the TT stiffer to reduce sway effects and allows the tire to run cooler.
The truck, this is different. This "depends" on a few things. First is what is your truck and what tires does it have? All we can see is it is a 2002 Chevy.
I'm assuming you do not have a 1 ton truck. But if you do, then let us know as that changes things just a little.
If you have a 3/4 ton or 1/2 ton, look at your drivers side door panel. Most GM 3/4 trucks use LT tires and it most likely will list 80 psi for the rear which is max cold side wall pressure. They need that to get the rear axle weight ratings. And for towing stability the rear helps if you are at max side wall on this series truck.
If you have a 1/2 ton, it will list some pressure that lines up with the rear axle load capacity. Odds are they are not LT tires unless you requested it. If they are P rated tires, for sure air up the rear tires to max cold side wall, again for towing stability. I cannot tell you what pressure as I do not know what tires you have or truck.
The TV front. Pending truck, 1/2 ton or 3/4 ton this may be a bit different. On a 3/4 ton, you are into LT tires and some brand LT tires on the front run just great at door stick pressure. However some brands do not. Even LT tires do not always get stiff until they are at the higher pressures. A place to start is door sticker. If the you are getting a wiggle in the truck when a semi or wind gust goes by, more air can help some times. Go up in 5 psi increments as a test. If you get to a point the front end is so hard it starts bouncing left to right, that is the limit and then drop down 5 psi. Do not go above max cold side wall pressure. If you have a 1/2 ton, well start out 5 to 10 psi above door sticker as they need the stiffness from the get go unless that takes you over the max. Continue the experiment in 5 psi increments as stated above until you find the sweet spot. Do not exceed max.
If you are not towing for a while, you can air them down to the door sticker on the truck to help the emoty truck ride if you want.
When to check, for sure at the start of every trip. Then look at them every time you stop for gas, potty break etc. You can see a soft tire and thatís a problem. Then check pressure at least weekly to bi weekly Once you on the trip. If you are driving thru temperature changes, check daily. Starting out in the north and heading south is a temperature change enough to change the pressure.
Hope this helps and good luck
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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