P911CS

TPMS reading -7 on rear passenger tire, took a look and what do you know got a nail.... Local Porsche shop did the reset and top offed tired, but said it was not patchable and had to order tire, because nail was too close to edge...
Any suggestions? should I be ok for a 300 miles trip, and replace @ local tire shop?
thanks in advance for advice guys.

Edgy01

IKt all depends. How old are the tires? If the thing fails at 75 mph will the car be affected?

P911CS

Original tires (MPS2) 11700 miles, Fronts 85% tread, Rears 65%.....
@ 75 mph I should be able to come to a complete and safe stop...
the key is stay @ or below 75 mph...
I will check on it in ~ 2 hours ( I have it parked outside hotel since I last drove it and read normal TPMS 44 Fronts and 50 Rears , if it hasn't deflated below TPMS warning, I think I should be ok... but what if it did, any suggestions?

PhilD

There are two things you can do, tire slime or plug. I don't like tire slime stuff and if you don't have a plug kit then that's out too. Personally, I would drive and just keep an eye on the tire pressure and maybe check it every hour or so, just in case it is splitting, although that is unlikely.

LexVan

Can you post a pic of the nail location? Get a tire plug kit. Should have one regardless. Any autoparts store.

9114Scab

Get a new tire, for piece of mind sake. Don't cheat on safety. I bought a new tire (right rear) to replace a tire that had only 850 miles on it.

Just, what if, that thing blows on you at 70 miles per hour.

Safety first.

slicky rick

That pressure is too high brother though for the pinctured tire mayne you can have slightly higher pressures

awrryan

This may sound crazy, but I'd replace both rear tires since they have over 11,000 miles on them. Replacing just one will mean you will have one new tire on the rear axle while the other is significantly used even if it is still in good shape.

sjfehr

How close to the edge is it? Is it on the flat part of the tread, or on the corner? You may be able to install a $2 temporary plug even if it's too close to the edge for a patch, as plugs don't need less space than patches. You might also get a 2nd opinion at another tire shop. I've had many tires patched and you can drive a patched tire with perfect confidence.

I wouldn't hesitate to drive 300 miles on a temporary plug, and have done similar myself; even if it fails, it's not a blowout just a hissssss as it leaks, and TMPS will let you know; just pull over, stick in a new plug, pump 'er back up, and keep going. Or if it's only losing pressure very slowly... consider leaving the nail in and just drive it like that. Pick up a patch kit to have on hand; nice to just always have one in the car anyhow "just in case".

9114Scab

I agree, you better do both. That would be wise.

PhilD

X2 I would definitely replace both.

P911CS

I don't have a pic, but it is on the flat part of the tread, not corner, even so, tech @ local Porsche said it wasn't patchable. I might go get a second opinion before hitting the road.
When I asked if tired was in stock, he said NO, and that it will have to be special order earliest they can get it is Monday.
I'll buy a patch kit to have on hand, last night it was only -4 but fluctuated from 44psi to 47psi, never triggering TPMS warning.
Need to go check on it see if it loss more air over night. I'll keep you guys posted.

thanks

PasPar2

why the super high pressure? are you checking it hot, right after a skidpad run?
?

brad@tirerack.com

At 11k, that's sound advise. You are pretty close to needing two new ones anyway, may as well change now. FYI, we can shave a tire down to the depth of the other side if you need us to. Let me know if I can help.

mander

My local dealer won't patch or plug any tire regardless of where the nail is. They say Porsche doesn't allow it. They do recommend a local tire shop that does it if the shop feels it is safe.

In my case the nail was in the center of the tread. The tire shop felt it was safe and did plug it for $25. This was on a tire with under 1,000 miles. So far so good.

On a rear tire with 11,000 I would just replace both and be thankful I got that many miles out of them - I certainly never have.