Tire Losing Air?
#16
Rennlist Member
Agree on the temperature changes - it does make a big difference. The soapy water spray works great - that is what many use when finding a gas leak around a gas meter (after using the sniffer). Works just as well for an air leak in a tire.
#17
Rennlist Member
There is a seal at the TPMS to rim junction on my other car. Maybe the hold down nut neets tightening.
#19
Burning Brakes
Probably this. Don't overtighten the holddown nut on the valve, though. You will deform the O ring and it can leak worse.
#21
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Yeah, cold here for FL! Only 1 tire was low so it cannot be the cold. I just checked the tires again and both rears were stll at 40psi so I am baffled. I cannot see this resolving itself since both the car and my gauge showed a decrease. So I rolled the car a bit so the tire is in a different position and I will check it again tomorrow with my gauge and while driving. Stay tuned.
#22
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#23
Rennlist Member
Hope you find the gremlin. But it still could be temps. Up in Philly when the weather shifts I lose air very inconsistently in the 4 tires, location in garage, proximity to the door, etc... Good luck with the search.
#24
Rennlist Member
Cold temps will result in pressure drop in all 4 tires, not just one. I wouldn’t wait any longer, it’s obvious there’s a small leak, more than likely from a nail or screw, extremely hard to find with tire on vehicle. Keep us posted.
#25
Racer
I lost 4 lbs in my right rear yesterday just sitting in the office parking lot. Filled it at home and lost 2 last night.
sitting in the lobby at Suncoast as I type...
arghhhhh
sitting in the lobby at Suncoast as I type...
arghhhhh
#26
Rennlist Member
The most common tire to pick up a nail and fail is the rear passenger side one (closest to the curb around corners). Several years ago, I made the mistake of only topping up my rear tire a couple times and then came out to the car after a meeting to find a flat. Bob, it’s odd that only one tire lost pressure initially and now is holding air ...
#27
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Here's a trick. Use your cell phone camera. Snap a few pictures of the tire, and blow them up to look/see. It helps you to see the far inner edge. You may have had a nail/screw for a l o n g time, and wore the head off of it.
#28
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I just checked it again and it is still at 40, right where I left it and that is after rotating it a few times. I live in a condo and do not have the tools to take of off but I do have soapy water, which is great since I do not like to get my hands dirty. We are going out to dinner later and I will see what the car says and report back. Could it be that since it is cold (upper 40s) and the concrete is even colder in the garage a hole could have closed up, and when I drive the tire heats up and it expands allowing air to escape?
Speaking of tire gauges, what is the best? IXLR8 mentioned a Longacre and Suncoast has them for $28. I have gone through several the last few years since they work at first but start flaking out thereafter.
Speaking of tire gauges, what is the best? IXLR8 mentioned a Longacre and Suncoast has them for $28. I have gone through several the last few years since they work at first but start flaking out thereafter.
Last edited by Bob Z.; 01-30-2019 at 01:28 PM.
#29
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^can't beat Longacre. Quality product.
#30
Bob I had a similar issue which ended up getting worse as the weeks went on. Had to use the tire inflator kit a few times when the car sat for 4+ days.
Tire shop found 2 nails in the tire which I was never able to see.
Found a big open area and obliterated the rears and then I replaced all four keeping the fronts aside as spares.
Tire shop found 2 nails in the tire which I was never able to see.
Found a big open area and obliterated the rears and then I replaced all four keeping the fronts aside as spares.