been looking to try to find this for a while now,
i am running the stock rims & tyres (i think) 285/75 R16
can anyone tell me the correct pressure thay should have in them please.
I'm not towing anything with the EX, just filling it to the max for a camping trip to france, with most of the kids so should be quite heavy.

thanks in advance

 

UK, without knowing what the Manufacture or Load rating your tires are, I can't suggest the proper PSI for your setup... but you may find some helpful info at Tire Rack... http://www.tirerack.com/tires/tiretech/tiretech.jsp

Another useful tool at Tire Rack, is to find the tire you are using, and at the top of the page, select "Specs" which should give you all the info you need on a specific tire. Hope this helps.

 

they are BFGoodrich All-Terrain T/A
LT 285/75 R16
122/119R
M+S
load range D

I know there is not much need for mud & snow tyres out here in the UK( rain ones YES lol) but i just want to get the correct pressure so that they will hopefully last a little longer till i can afford some new rims.


i'll have a look at the link you posted and see if i can work out what all the codes mean, cheers bud

 

UK, here ya go... http://www.tirerack.com/tires/Spec.j...irePageLocQty=

 

65 psi , wow, you would not need to put that pressure in though, isnt that the MAX pressure.
what pressure are most people running at.

i know this may seem silly but we dont have the excursion listed at the garages here in the UK & they have no idea as its slightly on the weighty side

 

I'm running 65 PSI at all four corners on my '05 X with load range "E" tires which have a maximum pressure of 80 PSI. Whatever pressure you decide upon, keep in mind that the pressure listed on the tire's sidewall is your maximum, and the pressures listed by Ford in the driver-side door jamb are the minimum pressures.

 

UKMat
You actually have a slightly larger than stock tire. The EX came with 265/75 R16's. Many people including me run 285's. I just recently got mine. You are correct 65psi is the max pressure and is not theoretically required. As previously noted somewhere between 50psi front, 55psi rear and 65psi all around would be correct depending on the weight of the Ex fully loaded. Many people like to go with the max to insure they are not underinflated. I tow a 6000lb TT and when loaded and hooked up with my weight distributing hitch I have 4100lb on the front axle and 5000Lbs on the rear. So I have a need to support 2050lbs on each front tire and 2500lbs on each rear. Goodyear used to have a chart showing required pressure for a given weight but I haven't been able to locate one lately. Does anyone have a link for such a chart? On my last 6000mi trip W/TT, I still had Load E rated tires(max 80psi) and used 60psi front and 65 rear. I will probably do the same with my new D rated tires on the next trip. Ford originally put 265 D rated tires on the Ex, but later recalled them and now recommends E rated.
I think this was during the big flap with Explorers having blowouts with Firestone tires and causing a lot of lawsuits.
I think properly inflated 285 D's should be more than adequate for an EX loaded within limits. If one is going to exceed the load limits then they should think about getting load rated E tires. Just my opinion.
Ben

 

thanks guys
cheers Benjoman, that seems right then, at the moment im running with 50 psi on each corner , will put the rear up slightly more than the front tommorow.
just wanted to check pressure's before i play with the suspention set up to eliminate problems as it wanders a little on the straights its a huge pressure seing as i only ran about 32psi max on my old impreza.

 

The chalk test is a simple way to determine if your tires are inflated properly. Draw a thick line straight across the treads. Now drive straight so that the tire goes around a few revolutions. Get out and inspect the chalk wear. It is worn off in the center but not the sides, then you have too much air. If the opposite, then you have too little air.

Your door sticker still has the recommended inflation pressures from Ford using D-rated tires. (They never upped the pressures when they recalled the D's for the E's. ) It is certainly safe to add 5-10lbs more than what the door sticker says. It rides a bit better (more controlled) and will sometimes post better MPG.

 

Ken
I like the chalk test. Did you notice he has D rated tires?
Ben

 

Yes, you're hanging out with the big dogs now. You have to get used to bigger numbers up to 65 or 80 psi depending on the tire
Ben

 

Yes. That's why I said it. I didn't want him to mistakingly think that those recommended pressures are only for E-rated tires.

 

An interesting point is that the 2005 EX must have come with Load E tires(since the recall was in Feb of 2004), yet 05 Ltd & EB PSD 4x4's doorjamb placards still recommended front 50psi and rear 55psi. Leaves one to believe the recommended pressure must be based on the weight of the Ex and not the tire's rating.
Ben

 

Yes, all tire pressures are based on the weight they'll be carrying...unloaded.

An E-rated tire is "rated" to carry 1921lbs @ 45psi (the recommended cold psi for the front of my Excursion). And 2134lbs at 50psi (your listed front psi?). 55psi allows for 2348lbs.

Add 'em up and all four at 45/55 can support 8538. Certainly enough to handle the weight unloaded but not at MAX GVWR. Since most of us do not weigh each thing we put in our truck each time we do it, it is "safe" reasoning to put in 10psi more than recommended on the door jamb...wouldn't you agree?

 

Ben, this may be what you are referring to... http://www.goodyear.com/truck/pdf/databook/loadInflation.pdf