Rennlist

2002 3.6L Sludge on coolant cap (see picture)

Add to repair workspace

New repair projectOpen repair workspace

Original source

6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH2002 3.6L Sludge on coolant cap (see picture)

Leading reported evidence

Replace every year during annual maintenance by a porsche shop

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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.

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
Oil is changed every year during annual maintenance by a Porsche shop.
Original post Read captured discussion
2002 3.6L Sludge on coolant cap (see picture)

Frequently discussed work

Check coolant

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
Then let it cool down and check the coolant again.
Original post Read captured discussion
2002 3.6L Sludge on coolant cap (see picture)

Read full discussion summary

Leading evidence: 'Replace every year during annual maintenance by a porsche shop' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check coolant' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 6 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Check coolant

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
Then let it cool down and check the coolant again.
Original post Read captured discussion
2002 3.6L Sludge on coolant cap (see picture)

Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check coolant

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
Then let it cool down and check the coolant again.
Original post Read captured discussion
2002 3.6L Sludge on coolant cap (see picture)

Replace every year during annual maintenance by a porsche shop

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
Oil is changed every year during annual maintenance by a Porsche shop.
Original post Read captured discussion
2002 3.6L Sludge on coolant cap (see picture)

Coverage and how to read this overview

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.

6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

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

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T194705Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Looking at a 2002 Cab with 60k miles that checks all the boxes except one issue, small amount of oily sludge inside the coolant cap. There isn't any oily sludge floating in the coolant reservoir. The dipstick, oil fill tube and cap are clean. Seller only put 2k miles a year on it last two years and stated the coolant cap hasn't been off for at least three years. Oil is changed every year during annual maintenance by a Porsche shop. I've read that a small amount of sludge is acceptable on the oil cap due to condensation from short drives, but are there any acceptable reasons to have a small amount of sludge on the coolant cap?

POST 2Original post

^^^ Nope! Sumpum looks fishy to me... I'd take it for a nice long drive and get it up to operating temp. Then let it cool down and check the coolant again. Even if it's fixed now, that cap was on a reservoir that had an intermix - the seller is not telling the the truth/whole story.

POST 3 / ORIGINAL POSTEROriginal post

Thanks and yeah, I searched and couldn't find anyone saying "a little oily sludge is acceptable", this for a Porsche or any car for that matter. Sadly I gotta pass on this one.

POST 4Original post

Nice detective work. It�s the little things that show red flags. Glad you avoided this one.

POST 5Original post

I saw a weird substance in my oil filler tube once and freaked out. Apparently that is an OK "thing," though.

POST 6Original post

Quotes source post: 16778152

Whitish, orange stuff on the tube near the top is OK. A long drive will get rid of it. Weird stuff in the coolant, though...not good.

This is a source reference. Confirm exact model applicability in the original material.