Rear Tire Pressure Issues

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Jul 31, 2018 | 12:44 PM

RaceMic

Thread Starter

Racer

Joined: Apr 2003

Posts: 389

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From: Santa Maria CA

Rear Tire Pressure Issues

2017 GS rear tires losing pressure on a regular consistent basis. Approximately 8-10 psi per week. I can find no nails in either tire, and find it odd that both lose pressure at about the same rate.

Is this a known issue?

Jul 31, 2018 | 12:53 PM

c54u

Melting Slicks

Joined: Aug 2006

Posts: 2,615

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Check to see if valve stems are leaking and check to see if there are any cracks in the rims. May have to get tires dismounted for a thorough check for possible cracked / bent rims.

Jul 31, 2018 | 12:55 PM

Rebel Yell

Le Mans Master

Joined: Jan 2006

Posts: 6,800

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From: Down south in Dixie

There has been reports of bent GS wheels. So, that would lead me to believe some could crack also. Could be a bad seal around the lip, or bad valve stem. Maybe even something punctured the tire, and didn't hang around for you to find it. Good luck.

Last edited by Rebel Yell; Jul 31, 2018 at 12:57 PM.

Jul 31, 2018 | 12:56 PM

Maxpowers

Le Mans Master

Joined: Aug 2015

Posts: 6,884

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From: Toronto

Its rare that both are losing air consistently. I agree with c54u, check the valve stems first. Easy fix if that's the problem.

Jul 31, 2018 | 01:09 PM

Foosh

Team Owner

Joined: Oct 2004

Posts: 25,583

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I did find a couple of loose valve stems on my new car from the factory. You do need an inexpensive valve stem tool to make sure the center air valve is tight. They are available at any auto part store.

Jul 31, 2018 | 02:33 PM

Dale Stevens

Intermediate

Joined: Jul 2017

Posts: 47

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From: loris sc

Mic, soap down with water and dish wash liquid . You should see some bubbles. Dale

Aug 1, 2018 | 08:18 AM

RUSTYNKL

Instructor

Joined: Mar 2015

Posts: 149

Likes: 24

Simple, take wheels to tire shop that has a dunk tank, look for bubbles!

Aug 1, 2018 | 02:28 PM

JerryU

E-Ray, 3LZ, ZER, LIFT

Joined: Sep 2007

Posts: 34,980

Likes: 12,383

From: NE South Carolina

^^^

I am amazed my Grand Sport wheels hold pressure for months. There is a leak somewhere in the OPs GS. Could be bead, crack or valve stem.

When the wife is not home, could fill a tube and check yourself! I would and clean it good when finished!