13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHBlack sud on the pumper
Leading reported evidence
Clean bumper cover and drive the car
Suggestion or failed attempt
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 contain suggestions
1
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Once you get that the source of the error codes taken care of then clean the bumper cover and drive the car.
Leading evidence: 'Clean bumper cover and drive the car' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean bumper cover and drive the car' (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.
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Suggestion · Original poster
I had changed my AOS once already since I owned my car and need to change it again .
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.
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.
13 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: 20261027T011819Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi every one and Happy Holidays , I have been seeing black sod on my pumper on the driver side for while , any guess why I get that and every once in while I get code P0492 , P0491 . I had changed my AOS once already since I owned my car and need to change it again . I am thinking if I need to change or do any thing else its good time to do it .
Best advice I can offer is address the errors you are sure of, the P0492/P0493 errors codes and their causes.
Once you get that the source of the error codes taken care of then clean the bumper cover and drive the car.
Absent any other signs of any engine (or engine subsystem) problems I'd just continue to drive the car.
Not sure the AOS needs to be replaced. You need more than just a bit of discoloration at the bumper cover to replace the AOS. Most often a failing/bad AOS makes itself known with more distinct symptoms/signs: varying engine idle, stumble/hesitation off idle, CEL, excessive low pressure in the crankcase, and course consistent and persistant smoking at start up and beyond.
Ideally if the crankcase fumes didn't carry a heavy load of oil vapor the oil vapor would probably be shared by if not all cylinders at least by some cylinders on both banks.
But the AOS sucks and often passes through fumes loaded with oil vapor.
In this case then the fumes that pass through the AOS and heavily laden with oil vapor this vapor impacts the intake wall across from where the AOS hose connects to the intake. Because of the way the intake is constructed only one bank receives the bulk of this vapor, in the form of liquid oil that the vapor produces.
When the engine is shut off and the intake heat soaks and oil that has collected on the intake wall then runs down intake wall and ends up in one maybe two cylinders of one bank.
