Mysterious flat tire - Pontiac Solstice Forum
  • 4 Post By sirwm
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post #1 of 4 (permalink) Old 06-17-2019, 02:21 AM Thread Starter
stevebot39's Avatar
Join Date: Dec 2016
Location: Cleveland Heights OH in summer, Tucson AZ in Winter
Posts: 340
Mysterious flat tire

We are staying in a hotel while our move is being done. 3 days ago I got a Check Tire Pressure warning when I started the car. Sure enough, flat RF. Used the compressor and inflated a few PSI over. In 3 days it has not lost a lab. I did not use the sealant.

Mystery is how it can go completely flat in 12 hours then not lose any in 3 days? Vandals? Cap was in place. From my teens I recall you unscrewed the stem and did not hang around to replace the cap.

Watching carefully until I have time for a trip to the shop..

Winter Solstice, Tucson AZ - '09 NA Automatic Cool Silver Coupe; DDM Supercharger, MagnaFlow cat and exhaust, ESTuned; GXP sway bars, DDM chassis kit; Stoptech brakes; Michelin PSS tires; Pioneer radio w/ NAV and b/u camera. Plate SOL N AZ

Summer Solstice, Cleveland Heights OH - '09 NA Auto Mysterious Black Coupe; DDM Supercharger, MagnaFlow, DDM chassis kit, Hawk brake pads, Conti EC Sport tires on Black ASA wheels, Advent radio w/ NAV and b/u camera. Plate SOL 4 OH
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post #2 of 4 (permalink) Old 06-17-2019, 04:19 AM
RedOne07's Avatar
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Possibly the surface of the rim is not smooth anymore, inflation from flat to full might have caused it to sit a bit different on the rim.
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post #3 of 4 (permalink) Old 06-17-2019, 04:22 AM
Join Date: Sep 2006
Location: Lexington, KY
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Check the valve core to see if it is tight. A loose valve core can unscrew while driving, leak air when it cools off, then be tightened just enough to not leak when you refill the tire.

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post #4 of 4 (permalink) Old 06-17-2019, 05:12 AM
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Join Date: Aug 2006
Location: Shamong, NJ
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a screw or nail in the tire can create this behavior.

if the object is "just right" in the tire, the seal is maintained. Otherwise you lose air.
...happened to me...

Sir William's Fleet
Mean 2007 NA 2007 Solstice ordered on 8/24/06 - Picked up on 12/12/06 - Totaled on 6/12/10
Mean 2008 GXP Acquired 6/21/10 with 1275 miles on it - Summer Solstice !
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