HELP: Tires Drop 20PSI in 10 Miles!

forzajuve · 08-25-2009, 04:08 PM

Would anyone care to diagnose a problem for me?

My left rear tire (my car is RWD) loses 20 PSI every 10 miles when driving on highway (70 mph). When I drive locally, I believe it drops 5 PSI, which is still bad.

I am suspecting it was a poor tire mounting job when I got my new wheels. Coincidentally, that tire was the only tire that was poorly mounted (rim got scratched) so I'm putting two and two together...

My question is: is there are way that I can trace back the air leak to the poor mounting job, and if so - make them pay for a temporary repair AND new tire? Is it even possible to puncture a tire when mounting? (I have General Exclaim UHPs btw).

Thanks everyone.

JDLM · 08-25-2009, 04:59 PM

TPMS (mine were having a similar issue)

forzajuve · 08-25-2009, 05:18 PM

Quote:

Originally Posted by JDLM

TPMS (mine were having a similar issue)

What about the TPMS?

B/c I used a tire pressure gauge and the air pressure showed 20 PSI

JDLM · 08-25-2009, 05:23 PM

Quote:

Originally Posted by forzajuve

What about the TPMS?

B/c I used a tire pressure gauge and the air pressure showed 20 PSI

Well mine did this because of the nuts backing off due to poor install (mine showed 20lbs as well)

Bartman619 · 08-25-2009, 08:54 PM

Spray the whole tire with soapy water and watch for bubbles...

forzajuve · 08-25-2009, 11:35 PM

Quote:

Originally Posted by JDLM

Well mine did this because of the nuts backing off due to poor install (mine showed 20lbs as well)

How did you end up fixing it? thanks.

VMRWheels · 08-26-2009, 02:06 AM

Quote:

Originally Posted by Bartman619

Spray the whole tire with soapy water and watch for bubbles...

Ditto! This is got to the the easiest way to find out where the leak is coming from. Or if you do have a big bucket to fit a wheel/tire, do a full dunk test.

-Charles@VMRWheels

08-25-2009, 04:08 PM	#1
forzajuve Private 11 Rep 66 Posts Drives: 335i Sedan (LCI) Join Date: Jun 2009 Location: New York iTrader: (1)	HELP: Tires Drop 20PSI in 10 Miles! Would anyone care to diagnose a problem for me? My left rear tire (my car is RWD) loses 20 PSI every 10 miles when driving on highway (70 mph). When I drive locally, I believe it drops 5 PSI, which is still bad. I am suspecting it was a poor tire mounting job when I got my new wheels. Coincidentally, that tire was the only tire that was poorly mounted (rim got scratched) so I'm putting two and two together... My question is: is there are way that I can trace back the air leak to the poor mounting job, and if so - make them pay for a temporary repair AND new tire? Is it even possible to puncture a tire when mounting? (I have General Exclaim UHPs btw). Thanks everyone. __________________ 335i Sedan LCI \| Le Mans Blue on Black Dakota \| /// M Sport \| iPod \| Steptragic w/Paddle Shifters
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08-25-2009, 04:59 PM	#2
JDLM Banned 73 Rep 3,277 Posts Drives: 2009 335i Sedan Join Date: Aug 2008 Location: Kansas iTrader: (4)	TPMS (mine were having a similar issue)
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08-25-2009, 08:54 PM	#5
Bartman619 Captain 25 Rep 701 Posts Drives: Bimmer Join Date: Jun 2008 Location: SDCA iTrader: (2)	Spray the whole tire with soapy water and watch for bubbles...
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