tire wont go flat, but won't stay at pressure either.

[Plasma800]

I have a ford F150, bought new in Dec. From day 1 driving off the lot, I noticed a slow leak in one tire.

Took it to the dealer, they said it had a nail or something and patched it. they filled to 36 psi.

The next day is 34, the next 32, the next 31, the next 29..

Took it to discount tire, they said they patched it again. They filled it to 40... then some days later, 38, 37, 36, 32, 31 and holds...

Fill it up... slowly leaks to 31 and holds... won't go any lower, but also wont hold the pressure I put in it. Bizarre.

I don't get it. No ford of course is saying, sorry your problem.

[overlander63]

Originally Posted by Plasma800

I have a ford F150, bought new in Dec. From day 1 driving off the lot, I noticed a slow leak in one tire.

Took it to the dealer, they said it had a nail or something and patched it. they filled to 36 psi.

The next day is 34, the next 32, the next 31, the next 29..

Took it to discount tire, they said they patched it again. They filled it to 40... then some days later, 38, 37, 36, 32, 31 and holds...

Fill it up... slowly leaks to 31 and holds... won't go any lower, but also wont hold the pressure I put in it. Bizarre.

I don't get it. No ford of course is saying, sorry your problem.

The last new vehicle I got had a 12 month, 12,000 mile tire warranty. If Ford won't stand behind it, find a place that sells the tires you have on your truck, and see what they will do for you through the tire manufacturer's warranty.
You may also have a leaking valve stem or core, or even a wheel problem.

[Plasma800]

I was surprised that ford wasn't willing to replace it. Even though in the first conversation they said they would - but now.. that's all different. I admit, this has been since late december, but we also work from home.. so we don't drive this truck daily, sometimes not even weekly.... So it's taken a while, with two attempt fixes to see if they would work, and then I call the dealer and say "hey, this isn't working, i would like the tire replaced." Oh sir, i don't think I can do that......

Not to mention, the selling "Car Pro" dealer I purchased from is an hour and a half away....

I think that brand new F250 I've been eye balling just turned into a brand new GMC 2500 Diesel....

[Caffeinated]

That's funny, because on my '09 Silverado LT, I have to replace three electric door lock actuators. Never had to do that on any vehicle before and that's got me thinking about a new F250.

Mike

[Ag&Au]

Originally Posted by Plasma800

I have a ford F150, bought new in Dec. From day 1 driving off the lot, I noticed a slow leak in one tire.

Took it to the dealer, they said it had a nail or something and patched it. they filled to 36 psi.

The next day is 34, the next 32, the next 31, the next 29..

Took it to discount tire, they said they patched it again. They filled it to 40... then some days later, 38, 37, 36, 32, 31 and holds...

Fill it up... slowly leaks to 31 and holds... won't go any lower, but also wont hold the pressure I put in it. Bizarre.

I don't get it. No ford of course is saying, sorry your problem.

I guess the solution depends on which problem you want to solve.

1. Failing to hold initial pressure.
2. Failing to go fully flat.

However I'm guessing that the problem is the wheel, tire, tire valve, or all three.

Since no one who may be responsible is doing much for you, I'd suggest replacing all three. If that does not work, buy a Chevy and make sure it has Michelin tires. Then make sure you have spare electric door locks.

Ken

[SpletKay06]

Id start by buying new tires and seeing if they would give me a credit for the old ones. Especially since the stockers are usually junk anyways.

[mykytiukr]

Sounds to me like it may not be the tire. The rim may have a flaw or a crack. One way to know for sure is to submerge the tire and rim in a big tub of water and look for any bubbles. Or you can use some soapy water in a spray bottle and (with the tire removed from the truck) spray everywhere and look for the tiniest bubbles. It may just be that the bead isn't sealed properly. If the bubbles are coming from where the tire and rim meet, that's the problem. Dismount the tire then clean the rim and tire bead with a wire brush to remove anything that isn't supposed to be there. Check for any damage to the tire from the mounting equipment. Maybe apply some soap based tire sealant.

[GCinSC2]

Ever consider taking it off and spraying entire tire with soap solution and watch for foam? Or find old school tire shop with complete submersion water tank. I saw one IIRC that has an air cylinder that pushes it down and held it in the water.

[RVDreamer]

Originally Posted by Plasma800

I was surprised that ford wasn't willing to replace it. Even though in the first conversation they said they would - but now.. that's all different. I admit, this has been since late december, but we also work from home.. so we don't drive this truck daily, sometimes not even weekly.... So it's taken a while, with two attempt fixes to see if they would work, and then I call the dealer and say "hey, this isn't working, i would like the tire replaced." Oh sir, i don't think I can do that......

Not to mention, the selling "Car Pro" dealer I purchased from is an hour and a half away....

I think that brand new F250 I've been eye balling just turned into a brand new GMC 2500 Diesel....

I would find another Ford Dealer. Talk to another Ford dealer and tell them your history with the problem. Your initial warrantee should just replace the tire and or wheel. Sounds like the "Car Pro" people are not fully honoring the Ford warranty. If a rep from the Ford office found out, the problem would be fixed correctly in short order.

[fwjumper]

Go to walmart, but a cheap kiddie pool. Fill it up and put the tire and wheel in it. I've had to do that with several tires, both Airstream and otherwise to locate leaks. Sometimes wheel, sometimes valve or tire. No one but you has a vested interested in the solution so they won't go to the trouble. Be sure to look into the wheel for bubbles too. As previously stated, wheels do leak.
I would hate for you to buy a tire and discover that the problem was elsewhere. Sorry for the aggravation. Good luck. I hate tire mysteries.

[ShinyPete]

Plasma-

Are you checking that twice patched tire with a good tire gauge or the dash readout on the F150? My rf tire on my '15 F150 always reads lower on the dash than my good quality gauge. Check it out, you could have a bad tp sensor on that wheel which Ford should fix once documented...........

Hope this helps.

[AldeanFan]

I had a tire that did that, it would hold 32 pounds for a year but if you pumped it up to 40 it would be back to 32 the next day.

The air has to be escaping somewhere so pump it up and check for leaks with soap and water. If it's the tire go to a tire shop, if the rim, go to the Ford dealer.

[Plasma800]

Originally Posted by ShinyPete

Plasma-

Are you checking that twice patched tire with a good tire gauge or the dash readout on the F150? My rf tire on my '15 F150 always reads lower on the dash than my good quality gauge. Check it out, you could have a bad tp sensor on that wheel which Ford should fix once documented...........

Hope this helps.

Both, two tire gauges. All three match

[Plasma800]

Originally Posted by RVDreamer

I would find another Ford Dealer. Talk to another Ford dealer and tell them your history with the problem. Your initial warrantee should just replace the tire and or wheel. Sounds like the "Car Pro" people are not fully honoring the Ford warranty. If a rep from the Ford office found out, the problem would be fixed correctly in short order.

Did this... "Sorry, since you didn't buy it here ....." Chump excuse, they quoted me 212 for the same hanook stuff.