Just one of my tires loves to lose 10-15psi over a 2-3day period.

Could this be caused by a bad tire install? or bad tire or rim?

 

It has a hole in it.

 

take wheel off car

run water hose over it

look for bubbles to find the leak.

you could have a small puncture you can't otherwise see. or maybe the tire isn't seating right on the wheel and its leaking out the side where the tire mounts to the wheel. or maybe your valve stem is fucked up.

 

If you take it to a tire shop they can unmount it, inspect it from the inside for holes, put some sealant on the bead and replace the valve stem. They don't usually charge much for that sort of thing either. I've had tires unmounted, inmspected, beads sealed and the tires re-mounted for free before.

 

It leaks from the rim/tire bead area.

I think I'm going to stop by a tire shop and have them unseat it.

If it doesn't hold then I'll have the tire taken off and I'll sand down and paint the inner bead wall to try and make a better sealing surface.

This is too much hassle every morning.