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Pelican Parts

Coolant warning light and jumping gauge

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4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHCoolant warning light and jumping gauge

Reported or suspected cause

still there

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No successful repair reported for this finding.

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Reported cause · Original poster

Car went to the dealer who had it a week and changed the coolant tank sensor, all up $500 spent and the problem is still there.

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Coolant warning light and jumping gauge
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Leading evidence: 'still there' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'still there' (1 discussions; 1 report identifying it and 0 suggest it). 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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Reported and suspected causes (1)

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still there

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause · Original poster

Car went to the dealer who had it a week and changed the coolant tank sensor, all up $500 spent and the problem is still there.

Original post Read captured discussion
Coolant warning light and jumping gauge
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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.

  • Pelican Parts: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

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Generation: 20261026T205155Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi. 997 series II Carrera. Couple of times recently the gauge for the coolant is stuck in the low number (40) and not moving. The red light to the right of the gauge comes on as well. Then the light goes out, the needle jumps to the 60 mark and then jumps to the 80 mark where it should be and seems to right itself. The whole thing take a couple of minutes and has happened twice in the last 4 or 5 drives. Before taking it to the Porsche mechanic I wondered if anyone had any thoughts. Thanks. Andy

POST 2Original post

Presume that you are not getting any error codes. My first guess, low coolant or air pocket in system. I would elevate the rear slightly, open the coolant reservoir, let the motor cool down at least 12 hours overnight. You may have to add some coolant in the morning before closing up the reservoir and starting the engine. Second guess is a sticky needle. Tap it and see if you get any reaction. Third guess is a bad or dirty sensor. When was the cooling system last flushed? Others will, I'm sure, weigh in. Johan

POST 3 / ORIGINAL POSTEROriginal post

Thanks. Tilt and top up seems to have worked.

POST 4 / ORIGINAL POSTEROriginal post

So things didn’t work. Car went to the dealer who had it a week and changed the coolant tank sensor, all up $500 spent and the problem is still there. Seems to happen after taking off and keeps going until temp comes up. Dealer is researching but so far they have no idea. Anyone else? Photo of what this looks like on the dash....

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