Another newbie tire pressure question

[jbwilli1]

I searched the forum, found answers that are close to the attached chart. But my coach doesn't have the tire pressure sticker, I searched from front to back, door, door jamb, etc. The only stickers are for the front seat & propane warning. It has a RVIA sticker by the door which is peeling off.



I have a 2019 Thor ACE 32.1 purchased Jan 2019, its only been driven 3 times, home from the dealer, back to the dealer for many repairs & then home. I checked the pressures, each was a little different, 70 +/- in front, rear duals not the same either, they ranged from 70-75.


Until I can get it weighed, I thought 80 front & 75 rear, then the more I read the more I doubt these settings.


Wife is notorious for packing a months worth for a week long trip. Propane tank is full, fresh water will be 1/3 full & black/gray tanks empty. We pack a little food & hit the store when we arrive at our destination. I'm thinking I should raise the pressures up a little.


Opinions pleez, thanx.

[Bob Denman]

Looking that your chart sort of makes one thing clear:
Don't exceed 110 psi...

But until you get it weighed: I think that you're at least "in the ballpark".

[ComputerChips]

Usually the sticker is near the drivers seat on the left under the window. My Ace said 78 pounds.

[lwmcguire]

Tires usually fail from heat, so error on the higher side and like Bob said don't go above the sidewall printed psig

I usually run the sidewall psig except for the tag and duals then based on actual load
My suspension is for the rough roads not the tires although many disagree with that

[ddlonewolf50]

Originally Posted by ComputerChips

Usually the sticker is near the drivers seat on the left under the window. My Ace said 78 pounds.

Check your RV owners manual, Tires and Wheels and that will tell you where to find the information you need to inflat your tires. My Thor 23U has tire info on Cabe drivers side door jamb . If your missing yours call Thor customer service toll free 877-855-2867 . Good luck [emoji106]

[ddlonewolf50]

Originally Posted by jbwilli1

I searched the forum, found answers that are close to the attached chart. But my coach doesn't have the tire pressure sticker, I searched from front to back, door, door jamb, etc. The only stickers are for the front seat & propane warning. It has a RVIA sticker by the door which is peeling off.



I have a 2019 Thor ACE 32.1 purchased Jan 2019, its only been driven 3 times, home from the dealer, back to the dealer for many repairs & then home. I checked the pressures, each was a little different, 70 +/- in front, rear duals not the same either, they ranged from 70-75.


Until I can get it weighed, I thought 80 front & 75 rear, then the more I read the more I doubt these settings.


Wife is notorious for packing a months worth for a week long trip. Propane tank is full, fresh water will be 1/3 full & black/gray tanks empty. We pack a little food & hit the store when we arrive at our destination. I'm thinking I should raise the pressures up a little.


Opinions pleez, thanx.

One more thing, check You Tube walk throughs on your Thor coach . May give you a location.

[jbwilli1]

Saleslady went out to another unit to find the pressure, which is 82 psi front & rear.


My experience with the tech line hasn't been accurate a few times, so I tend to rely on those runnin' the highways.


Thanx again!

[ComputerChips]

Ultimately the correct pressure would come from the tire manufacturer charts referencing the weight, not from Thor.
I think you said your rig was new. I would suggest you get a front end alignment. Many of us have had premature tire damage and had to replace tires and get an alignment out of our own pocket. Save yourself $1000 and get the $130 alignment early.