23 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHOil? stains deck lid
Leading reported evidence
Clean off
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
Looks like something was spilled on it a long time ago and wasn't ever cleaned off.
Leading evidence: 'Clean off' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check cap and the lines where they attach' (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.
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 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
Check the cap and the lines where they attach to the pump...
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 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 · Original poster
Also, I will check the oil refill line to see whats up.
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 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
Some guys will just clean w/ acetone and gel-coat over the damage, but if the part has been contaminated, paint won't permanently adhere to the affected area.
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 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
Once the part is impregnated with whatever contaminant you're dealing with, grinding out and repairing the affected area is the best solution.
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
Some guys will just clean w/ acetone and gel-coat over the damage, but if the part has been contaminated, paint won't permanently adhere to the affected area.
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
Good luck with the refinish if that's the case - make sure they take it way back through the old primer (bare metal/plastic) and use a good quality primer that shows no signs of the stain before painting (any good paint person should know what to do).
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.
23 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: 20261026T112012Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hello all,
Proud owner of a '04 996 C2 with 117K miles and since I bought the car 15K miles ago, I notice that on my rear deck I have brownish stain like a liquid dripping from the engine onto the lid. It's always dry and it must be polished to be removed (like a hard water stain almost). Car is not leaking oil, but after some spirited driving (not abusive but harder than a weekend stroll) I smell a burnt smell out of the back. I presumed it is oil, but cannot tell for sure. The liquid (whatever it is) is making the paint on the spoiler bubble up slightly and some of the spoiler (most of the stains are in the middle of the spoiler) paint has peeled off. The stain now down to my carrera logo and a little on the bumper.
Any help is much appreciated. I want to fix the issue, but I want to mitigate the problem before I repaint anything.
Thank you very much for your help,
Marcio
In order for it to get to where you're describing it would have to be under quite a bit of pressure (i.e. - spraying out). My guess would be Hydraulic oil via power steering pump. This stuff (CHF-11s) is also hot and possibly has some solvent type qualities depending on how old it is... Check the cap and the lines where they attach to the pump...
If the underside of the deck lid was scratched or otherwise damaged, and it was subsequently exposed to oil or brake fluid, the paint will start to detach from the fiberglass. This is a common woe for Corvettes (sample thread:
http://forums.corvetteforum.com/c1-a...iberglass.html
)
Once the part is impregnated with whatever contaminant you're dealing with, grinding out and repairing the affected area is the best solution. Some guys will just clean w/ acetone and gel-coat over the damage, but if the part has been contaminated, paint won't permanently adhere to the affected area.
There's a really good chance I'm misinterpreting what you're describing - a photo would help a lot.
Suggestion - manually raise the spoiler and look at the area around the bellows. Take some shots of that as well.
How is your engine running?
Is your oil fill pipe cracked? It looks "moist" around the first joint.
Blow up
Does the car burn oil or consume any other fluid (power steering, etc.)? Anything leaking onto the garage floor? It looks like some fluid has impregnated the deck lid; I wonder if the burning smell you're noticing is a fluid dripping onto a hot part (i.e. exhaust manifold), and the resulting smoke/vapor is getting pulled up and through the spoiler slats. It seems like the goo is concentrated on the rearmost slat; it also looks like the paint has been eaten away in that area...
Thank you for replying. Car does not burn oil runs very well. Most of the damage is on the spoiler. I am going to remove it and get it repainted. Also, I will check the oil refill line to see whats up. I polished the paint and the stain will come off. Clearcoat isnt affected. I am thinking about replacing the entire back section to remove the spoiler.
Check it when hot with the lid open and see if there's anything going on. Very strange indeed. You'd think with stuff running out the back like that, the inside of the bay would be covered... Is it possible somebody spilled something on it from the outside?
Looks like something was spilled on it a long time ago and wasn't ever cleaned off. Porsche exterior paint is very resilient to chemicals, but overtime, they can damage the clear coat if not cleaned immediately. I think you're making the right steps. Repaint the spoiler and rear deck lid. Then, monitor the engine closely.
Spoiler looks like it was repainted, but I have polished the stain and it comes back. I think the idea of opening the engine when the motor is hot is a good idea. I am going to do it and see if I find anything.
I think it's pretty clear that whatever it is, it's not coming from inside the engine bay. It's possible that it's something that was painted over before, and it keeps coming back through the paint... Good luck with the refinish if that's the case - make sure they take it way back through the old primer (bare metal/plastic) and use a good quality primer that shows no signs of the stain before painting (any good paint person should know what to do).
we have a smell coming out of the engine under hard acceleration... seems like power steering fluid. Still checking. Car is in the shop to get entire suspension upgrade and I have asked the mechanic to take a look once again. Let's see what happens.
