Firstly, i just got my rims powdercoated, installed new valve stems and reinstalled the tires about 1 week ago.

Yesterday night (didn't drive all day) I realized that my front driver side tires seemed flat and went to the gas station and inflate all my tires to 40-42 PSI.

This morning, i checked the driver side tire and it was 33 PSI while the passenger side is still 41 PSI. So i went to the same gas station and inflate the driver side to 40 PSI.

Got home during lunch time checked and it was 41.5 PSI (due to heat).

Today, 6.30PM , i checked it again, the driver side is 37 PSI and the passenger side is still 41 PSI.

Again just a few mins ago, i checked the driver side and it was 36 PSI.

I feel like it is losing tire pressure slowly like 0.5 PSI/Hour.

So I took the wheel out to check the tires but to find no signs of nails whatsoever.

I suspect it was the new valve stems but I sprayed soapy water and found no sign that it was the valve stems.

Any other possibilities?

Maybe the new powdercoated wheels? I had no problems before getting them powdercoated.

Thanks guys for any help.

 

Spray your whole rim down, including tires as well, around the beads too.

Last time I had this there was a crack on my lip near the beads, and I couldn't see it with my eyes but as soon as they sprayed it the bubbling made it apparent.

Maybe the dude who did the wheels dropped it (yikes)

Or when they did the valve stem they didnt screw the inner piece in (the pin looking thing in the valve) tightly enough

 

bring it to a local tire shop like discount tire, they will inspect it for free

 

check for nails.....

 

+1 to do this at a local tire shop

 

maybe the they ripped the bead when they remounted the tires.

 

That's what I was thinking.

 

+2 they do it for free and let them figure it out instead of you waisting time going to the gas stating every day.

 

yes guys i figured out the problem. Mostly it is the tire. When they put the wheel/tire in the water, tiny bubbles came out between the lip and the tire....so i would suspect it is the bead.

Right now they put some bead sealant and it is working out so far. If it doesn't work out, then I would just buy a new tire.

Thanks for all the advice/help guys!

 

Both of my front stock 18" rims were cracked near the bead (inside edge).

Koz