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View Full Version : Help! Losing front tire pressure


livingadream
01-02-2009, 05:57 PM
I have had my 750Li for 3 weeks. I have now lost pressure in the right front tire twice. For no apparent reason. That morning I had 42psi, 15 miles later, i had 32psi. I put on the spare and took the tire to Tire Kindom. They stated they could not find anything wrong with the tire or the valve stem.

This morning( about 10 days from last incident) I am about 8 miles from home on the highway and my TPM comes on again. This time I lost pressure from 40 down to 32 again. I slowly got off the highway, bought a portable pump and have maintained 40psi the rest of today.

What is the problem? tire, rim, valve? I have Pirelli Zeros, 245/35 fronts and 285/30 rears.

Lastly, I have been running 40psi front and 44 in the rears due to cooler temps. What should i be putting in these tires, now and then when it is warmer?

Thank you for you input.

livingadream
01-06-2009, 11:20 AM
I do not need a response from the Tire guy. Local Tire shop found a crack in the wheel.:)

Thanks anyway.

Gary@Tirerack
01-07-2009, 05:30 AM
If the wheel weren't cracked I would have suggested having the valve stem checked.