Tire loosing pressure only while moving. Brand new tire.

crazydrummer · 01-24-2011, 10:47 PM

Hey guys I'm kinda having a weird problem. I have 19" avant garde m6 reps and had a flat on the front left. Took the wheels off and ordered a new tire though no big deal. Today I put these wheels back on with the new front left tire mounted and balanced at a good local shop. Same thing is happening as when I had the other tire. Holds pressure while sitting (maybe slow leak) but looses it fast while driving. Going to take it to the shop tomorrow and see what they can do. Anyone been in this situation.

Btw sorry for the bad typing. Not use to typing threads on my iphone

crazydrummer · 01-25-2011, 11:20 AM

Anyone?

michael1284 · 01-25-2011, 11:30 AM

Could be many different things...valve stem leak, it's obviously leaking somewhere. Did you hit a pothole?

Vshock · 01-25-2011, 02:51 PM

yeah, as michael said it could be valve stem. my brother had similar problem while drove back from tire shop to home. just take it back to the shop asap.

Peter@VMRWheels · 01-25-2011, 05:07 PM

The top causes for mysterious leaks would be....

1. Nail/Puncture due to road hazard - straightforward to find/repair.
2. Valve stem defective or going bad- spray some soapy water at the valve stem and see if you notice any air bubbles.
3. Tire damage (during mounting)- spray soapy water at the part where the wheel meets the tire, and see if air leaks out from there.
4. Pinhole leak in wheel- Spray all over and see if you notice any air bubbles.

You can probably do some testing at home to minimize your time at the tire shop.

ceb · 01-26-2011, 02:48 PM

Quote:

Originally Posted by Peter@VMRWheels

The top causes for mysterious leaks would be....

1. Nail/Puncture due to road hazard - straightforward to find/repair.
2. Valve stem defective or going bad- spray some soapy water at the valve stem and see if you notice any air bubbles.
3. Tire damage (during mounting)- spray soapy water at the part where the wheel meets the tire, and see if air leaks out from there.
4. Pinhole leak in wheel- Spray all over and see if you notice any air bubbles.

You can probably do some testing at home to minimize your time at the tire shop.

Add - flat spot on the wheel that seals when stationary, but tire flex when rolling allows air to escape.

Tee212 · 01-26-2011, 02:51 PM

soapy water spray the whole wheel and tire

Flyer · 01-26-2011, 03:43 PM

Same thing happened to me. It ended up being my TPMS!!!

01-24-2011, 10:47 PM	#1
crazydrummer Captain 83 Rep 760 Posts Drives: 335i 08 Join Date: Jan 2010 Location: arkansas iTrader: (14)	Tire loosing pressure only while moving. Brand new tire. Hey guys I'm kinda having a weird problem. I have 19" avant garde m6 reps and had a flat on the front left. Took the wheels off and ordered a new tire though no big deal. Today I put these wheels back on with the new front left tire mounted and balanced at a good local shop. Same thing is happening as when I had the other tire. Holds pressure while sitting (maybe slow leak) but looses it fast while driving. Going to take it to the shop tomorrow and see what they can do. Anyone been in this situation. Btw sorry for the bad typing. Not use to typing threads on my iphone __________________ Current: 2009 E90 Dinan M3. Alpine White Over Bamboo
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01-25-2011, 11:20 AM	#2
crazydrummer Captain 83 Rep 760 Posts Drives: 335i 08 Join Date: Jan 2010 Location: arkansas iTrader: (14)	Anyone? __________________ Current: 2009 E90 Dinan M3. Alpine White Over Bamboo
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01-25-2011, 11:30 AM	#3
michael1284 Colonel 210 Rep 2,629 Posts Drives: 2018 M3 Comp Join Date: Apr 2010 Location: DFW iTrader: (44)	Could be many different things...valve stem leak, it's obviously leaking somewhere. Did you hit a pothole? __________________ e92, e90, f30 #DieselLife, e46, f80
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01-25-2011, 02:51 PM	#4
Vshock Private 7 Rep 51 Posts Drives: '08 E92 335i Join Date: Jun 2008 Location: Portland, OR iTrader: (1)	yeah, as michael said it could be valve stem. my brother had similar problem while drove back from tire shop to home. just take it back to the shop asap. __________________ '08 335ci Black Sapphire
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01-25-2011, 05:07 PM	#5
Peter@VMRWheels BimmerPost Supporting Vendor 93 Rep 685 Posts Drives: P85D Join Date: Mar 2009 Location: Irvine, CA iTrader: (0)	The top causes for mysterious leaks would be.... 1. Nail/Puncture due to road hazard - straightforward to find/repair. 2. Valve stem defective or going bad- spray some soapy water at the valve stem and see if you notice any air bubbles. 3. Tire damage (during mounting)- spray soapy water at the part where the wheel meets the tire, and see if air leaks out from there. 4. Pinhole leak in wheel- Spray all over and see if you notice any air bubbles. You can probably do some testing at home to minimize your time at the tire shop.
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01-26-2011, 02:51 PM	#7
Tee212 Banned 81 Rep 4,541 Posts Drives: yes Join Date: Oct 2008 Location: Riverside iTrader: (9) Garage List 2010 335 [8.00]	soapy water spray the whole wheel and tire
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01-26-2011, 03:43 PM	#8
Flyer Captain 21 Rep 766 Posts Drives: 2011 e92xi Join Date: Nov 2009 Location: Richmond, VA iTrader: (8)	Same thing happened to me. It ended up being my TPMS!!!
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