Pelican Parts

High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

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Original source

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHHigh Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

Leading reported evidence

Check level

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
Checked level again after a drive letting engine cool for a few hours with fluid level right at "HOT" mark.
Original post Read captured discussion
High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

Frequently discussed work

Check fluid level

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
Power steering pump is on center/right side, Check the fluid level
Original post Read captured discussion
High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

Read full discussion summary

Leading evidence: 'Check level' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'secondary air injection pump (sai)' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check fluid level' (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 · 7 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Check owner's manual "power steering fluid level" & there's this

Performed · outcome unconfirmed

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
Checked owner's manual "Power Steering Fluid Level" & there's this
Original post Read captured discussion
High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

Check power steering fluid level while cold

Performed · outcome unconfirmed

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
Checked power steering fluid level while cold with level just below the "HOT" marking on the measuring rod about 1/8".
Original post Read captured discussion
High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

secondary air injection pump (sai)

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect 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.

Suspected cause
Probably the secondary air injection pump (SAI)
Original post Read captured discussion
High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

Check fluid level

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
Power steering pump is on center/right side, Check the fluid level
Original post Read captured discussion
High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

Frequently discussed actions (4)

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

Check fluid level

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
Power steering pump is on center/right side, Check the fluid level
Original post Read captured discussion
High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

Check level

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
Checked level again after a drive letting engine cool for a few hours with fluid level right at "HOT" mark.
Original post Read captured discussion
High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

Check owner's manual "power steering fluid level" & there's this

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
Checked owner's manual "Power Steering Fluid Level" & there's this
Original post Read captured discussion
High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

Check power steering fluid level while cold

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
Checked power steering fluid level while cold with level just below the "HOT" marking on the measuring rod about 1/8".
Original post Read captured discussion
High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

Reported and suspected causes (1)

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

secondary air injection pump (sai)

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect 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.

Suspected cause
Probably the secondary air injection pump (SAI)
Original post Read captured discussion
High Pitch Whining Noise from Engine Compartment - Engine Off/Ignition Switch On

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.

7 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.

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

Generation: 20261026T152433Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

When I turn ignition switch on to position 1 (position 2 is engine start) there is a high pitched whining noise coming from engine compartment. The high pitch whining noise is audible but not too loud. The whine is coming from center to right side of engine compartment as best that I can tell. Anyone have an idea what is causing this?

POST 2Original post

Probably the secondary air injection pump (SAI) It comes on for a few minutes when cold started Sounds like a hair dryer It’s next to the coolant tank Have someone turn the key while you are in the back and see if it makes the noise from the SAI

POST 3Original post

SAI is on the left side of the engine bay. The poster said the noise is coming from the right side.

POST 4Original post

Hard to tell where it’s coming from unless you are standing at the back with the hood open Power steering pump is on center/right side, Check the fluid level Edit: just noticed the key in acc part. Only thing that comes on with the key in acc is the SAI and maybe the fuel pump, but that’s in the front

POST 5 / ORIGINAL POSTEROriginal post

Thanks for replies. Checked power steering fluid level while cold with level just below the "HOT" marking on the measuring rod about 1/8". Checked level again after a drive letting engine cool for a few hours with fluid level right at "HOT" mark. Checked owner's manual "Power Steering Fluid Level" & there's this "Note - The flow noise heard at full steering lock is design-related and does not indicate a defect in the steering system."

POST 6Original post

Fuel pump is NOT on with the engine off. Safety reason.

POST 7Original post

Fresh air blower motor on earlier cars can shriek when the bearing wears out. Unplug & see if your noise disappears. There's one each in the frunk & engine bay.

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