4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHEngine coolant lines - 2002 C4S
Leading reported evidence
Check lines as
Suggestion or failed attempt
No successful repair reported for this finding.
0
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0
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1
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Read evidence and context
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Suggestion · Original poster
I'll be under there this weekend and will check lines as recommended, but I don't expect any problems.
Leading evidence: 'Check lines as' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check lines as' (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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Suggestion
In fact mentioned replacing all coolant hoses along with the ones he cut.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion · Original poster
Is there a time-based or mileage-based interval for replacing these rubber lines?
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.
Rennlist: 1 discussions
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Generation: 20261026T091943Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Having 42K miles and 10 years under its belt, I am concerned about the condition of my coolant lines. The maintenance records I have from day 1 show no work on these lines and to date no problems have arisen. Is there a time-based or mileage-based interval for replacing these rubber lines? Also is there an observable condition that would be a criteria for replacement?
Over a year ago, make that over 2 years ago, my 02 Boxster's coolant tank split. At the dealer's service department I offered to let the tech cut the hoses at the tank to make the removal/installation easier. In fact mentioned replacing all coolant hoses along with the ones he cut.
He told me cutting the hoses and installing new ones doesn't buy a reduction in the cost of the coolant tank replacement and there is the cost of the hoses.
Also, he said he's never seen any bad hoses. They last a long time.
That was around 2 years ago. Fast forward and the car is now 10 years old and has over 257K miles and is on its original coolant hoses.
Absent any signs of hose deterioration/break down or a leak I'm leaving them alone and in service.
Now for you and your car, if you want the next time you have the car in the air and can get at the hoses look for any signs of hose break down. Generally this will show up as some sign fluid has been leaking at where a hose connects. The hose degrades at these locations first and at the bottom of the hose at these locations.
You can go further and grasp the hose so your finger tips are at the bottom of the hose and give the hose a hard squeeze like you are trying to force your fingers through the hose.
The hoses will develop a dry outer layer but the hose should still resist your fingers.
In the case of bad hoses it is not unknown for a mechanic to actually be able to put his fingers into a hose, the hose is so weak from age/exposure.
Sincerely,
Macster.
