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My Box lost it's cool - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Replace wp, low temp thermostat, oil cooler 'o' rings' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill completely' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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My Box lost it's cool - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Run steady 194 f
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Performed · outcome unconfirmed · Original poster
Since using the Torque App, it just ran a steady 194 F.
My Box lost it's cool - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use uview air lift
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My Box lost it's cool - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Fill completely
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Suggestion
Front of car should be lower than rear when filling to ensure rads fill completely.
My Box lost it's cool - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 1 discussions
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Generation: 20261027T000231Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Drained cooling system, replaced WP, low temp Thermostat, oil cooler 'O' rings.
Nose was jacked a bit higher than rear
I used UView Air lift. Held 26 psi no problem for a few minutes until filling
I filled with around 4+ gallon of distilled water (doing a flush for now).
(I only got a Little over 4 gallons out) That's all it took when vacuum went to 0. Tank level was at around max.
Started and let idle for 15 -20 mins.
Using torque app temp only got up 170s, 180s then it puked, A steady stream started out of overflow. Turned car off, let it sit for awhile, topped off tank level.
Started again, aft 5-10 mins no overflow. Went for a drive around the block. Temps climbed quickly 190s, 200+. Oh no, this is going sideways. Then temps all of sudden went down to 180s, all is good.
Took it for a 7-8 mile drive around town, temps hanging around 183. Some stops and goes - temp creep to low 190s
Let it idle in the drive way, for a bit, temp went to 212, fans came on then back to mid 190s. Never over flowed
I think some thing happened with the new thermostat, maybe got stuck, then started working. Could be an air pocket
I'm going drive it a bit again then drain and refill with 50/50
Yep air pocket. Front of car should be lower than rear when filling to ensure rads fill completely. Drive with the release opened for a few laps errr drive cycles
So I did a second Distilled water flush. I was hoping 1 water then 50/50 but the drained water was still pretty green. This time I dropped the nose on the ground with the rear on ramps and refilled. I then ran at idle and 20 min, up to 170s, then a drive with purge open. Everything ran cool, much cooler than before.
So even with the UView Airlift, it appears that car level is important. If not nose down at least level. I don't know if the purge was over kill or not.
So tonight I hope to drain last time and fill with 50/50 pink and be done.
It will be interesting to see how cool it runs on the hwy. Since using the Torque App, it just ran a steady 194 F.
Saturday it took me 20+ mins of stop and go(after 20 min idle in the driveway) to finally get to 190s
Air is a B!tch with this cooling system setup. Parking it tail high with the vent cap bail locked in the open position but it will take time to fully burp it. Patience is the key and carrying a gallon of water for a few weeks :-)
This is a source reference. Confirm exact model applicability in the original material.
