04-30-2021, 07:15 PM | #1 |
Drives: ‘18 ZL1 / ‘22 ZLE Join Date: Oct 2013
Location: PA
Posts: 584
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New Tires Leaking Air
I bought a new set of ZLE rims, tires and TPMS sensors. Had my detailer mount and balance them, but the tires keep losing air. The tires were very low when I got home so I filed them up to 34psi. After two hours, they already dropped down to 33psi. What could possibly be leaking if everything is new?
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04-30-2021, 08:37 PM | #2 |
Drives: '16 Garnet Red 1SS Join Date: Mar 2014
Location: College Station, TX
Posts: 3,450
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It's possible that they installed them wrong. Mine were like that, the valve was installed weird and was leaking.
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04-30-2021, 08:41 PM | #3 |
Drives: 2016 2SS BLK A8 Vert Join Date: Dec 2017
Location: MA
Posts: 1,029
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Spray them with a soapy/water mixture. It could be the valve cores not tightened/torqued, the TPMS stems missing a gasket/seal, or TPMS nut not completely tightened/torqued, the tire bead not sealing to the rim (unlikely being new wheels and tires), but being low profile the installer could of torn the tire(s) trying to mount them? Also there should not be any leakage coming from around any clip weights seeing it should of been balanced with tape-weights both inner and outer. Whip up some soapy spray and see what you find...
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05-01-2021, 10:55 AM | #4 |
Drives: ‘18 ZL1 / ‘22 ZLE Join Date: Oct 2013
Location: PA
Posts: 584
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I sprayed them with soapy water but didn’t see anything obvious. It’s definitely a slow leak because each tire dropped 2 psi overnight. Gonna see if the installer can fix the issue. I’ll let you guys know what the issue is
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05-01-2021, 11:59 AM | #5 |
Drives: 2016 2SS, 2008 HHR ECTO-2H Join Date: Aug 2009
Location: Springfield, Mo
Posts: 1,927
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Last time I had tires put on I had the same issue. Turns out a bristle from the bush they use was stuck in the bead.
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05-01-2021, 01:06 PM | #6 |
Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020
Location: MO
Posts: 1,990
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Its entirely normal if you saw a 1lb drop after having driven it home and time for the tires to have cooled, 2 hrs, dropping pressure.
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05-01-2021, 02:00 PM | #7 |
Drives: 2018 Hyper Blue 2SS 1LE Join Date: Aug 2018
Location: Dessert
Posts: 486
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I had an issue where the surface machining wasn't compatible with the TPMS sensors I bought. Had to get new sensors with a different seal design that fixed the issue. Mine were aftermarket forged wheels and OE sensors that didn't work. Had to get generic sensors that sealed properly.
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05-01-2021, 05:19 PM | #8 | ||
Drives: ‘18 ZL1 / ‘22 ZLE Join Date: Oct 2013
Location: PA
Posts: 584
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Quote:
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05-01-2021, 05:33 PM | #9 |
Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020
Location: MO
Posts: 1,990
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Ok you didnt say 15lbs in a week
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05-01-2021, 07:12 PM | #10 |
Drives: ‘18 ZL1 / ‘22 ZLE Join Date: Oct 2013
Location: PA
Posts: 584
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I probably mentioned it in the other thread and forgot to on this one. My detailer filled the tires up to 32psi last week. When I took the car home a couple of days ago, it was driving weird. I checked the tire pressure about 5 hours after I got home. The tires in the rear were sitting at 15psi & 25psi. The fronts were 21psi & 30psi.
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05-01-2021, 07:59 PM | #11 |
Drives: 2022 Wild Cherry ZL1 1LE Join Date: Mar 2021
Location: Fremont, CA
Posts: 446
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I’m not a tire expert in any way, but if you have the same problem happening on multiple tires, then the tire itself isn’t like to be the cause, so keep that in mind as you’re going down the troubleshooting tree 🙂
Good luck! Geoff |
05-01-2021, 08:01 PM | #12 |
Drives: 2022 Wild Cherry ZL1 1LE Join Date: Mar 2021
Location: Fremont, CA
Posts: 446
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Re-reading first post, since everything is new then yeah maybe an incorrect install or an incompatible TPMS sensor, as has been suggested.
Geoff |
05-04-2021, 12:17 PM | #13 | |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,181
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I would start by making sure you have an accurate tire gauge. Amazon has good digital ones for less than $10. Fill all the tires to same pressure (32 sounds low to me, but probably ok). You should not be losing more than 3 psi overnight on any tire unless there is a severe temperature drop. If you have a suspect tire, I would remove it and overinflate to like 40 psi. Then hit it with the soapy water. I use dish soap mixed in spray bottle. More soap than you would need to clean dishes. Maybe a tablespoon per 8 ounces. When searching for a leak, you have to make sure the soap gets to the flat surfaces of the tire. It tends to roll off, and then it will not bubble. This is partially why a "thicker" soapy mixture is better. The mixture they use in a tire shop adds glycerine, which is the same stuff added to kids' bubble-making fluid. Bigger leaks can quickly pop bubbles made from a too thin mixture. The bit about the car driving weird and the tire pressure dropping so much makes me think they did not seat the beads completely when mounting your tires. |
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05-04-2021, 06:36 PM | #14 | ||
Drives: ‘18 ZL1 / ‘22 ZLE Join Date: Oct 2013
Location: PA
Posts: 584
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