tractng

iTrader: (9)

Guys,

My stock 17 inch rear tires lose pressure after a week (even faster if I don't drive it). The thread looks good.

Any idea how I can troubleshoot it?

I am planning to take them off the car and visually check them. If I don't see any hole, I am going to drop it to a bucket of water.

Can the sensor /valve cause the leak or is a sign for me not to ride on the stocks any more (Sold my volks ).

Thanks,
Tony

DavesZ#3

iTrader: (26)

Soapy water - squirt it around all the potential leaky areas - bead, valve, etc.

350zspl

iTrader: (3)

submerge in water

bubbles will come

davidv

iTrader: (2)

a. Tighten the valve stem
b. Fill to 40 PSI
c. Put it in the bathtub.

Motormouth

iTrader: (44)

could be a bent or cracked rim. any vibration when driving?

Spork

iTrader: (6)

Submerge it in water or spray soapy water like mentioned earlier. This route is easier, as you don't have to remove the wheel, but you must move the car forward/backward to get the full tire sprayed.

tractng

iTrader: (9)

Can I tighten from the outside? I am not sure.

Thanks,
Tony

DavesZ#3

iTrader: (26)

Yes, the TPMS stem has a nut on the outside that tightens. Be careful, the seal is provided by an O-ring on the inside. Tighten it too much and you could cut or damage the O-ring making the leak worse.

aDDandrew

iTrader: (3)

I had the same problem, had the dealer check it out while doing my oil change and they patched it up for free.

davidv

iTrader: (2)

Yes. I meant the plunger and spring assembly inside the valve stem. The one that allows air in when the plunger is depressed, and seals the valve when released.

tractng

iTrader: (9)

Hopefully autozone/pep boys sell the tools.

Tony