911uk

Wobbly oil pressure...?

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHWobbly oil pressure...?

Reported or suspected cause

sensor

Reported cause

No successful repair reported for this finding.

1
Identified cause: 0
Suspected cause: 0
Reported fixes

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 report identifying 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.

Reported cause
Turned out to be the sensor.
Original post Read captured discussion
Wobbly oil pressure...?

Read full discussion summary

Leading evidence: 'sensor' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'sensor' (1 discussions; 1 report identifying it and 0 suggest it). 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 · 8 captured posts examined · 0 partial discussions

Compare 1 other evidence results

water in the engine

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 · Original poster
Probably the water in the engine...
Original post Read captured discussion
Wobbly oil pressure...?

Reported and suspected causes (2)

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

sensor

No successful repair reported for this finding.

1
Identified cause: 0
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that report identifying 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.

Reported cause
Turned out to be the sensor.
Original post Read captured discussion
Wobbly oil pressure...?

water in the engine

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 · Original poster
Probably the water in the engine...
Original post Read captured discussion
Wobbly oil pressure...?

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.

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

911uk: 1 discussions

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

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

Outcome without a verified action link
Accelerating or backing off seems to make no difference when its having a spasm.
Original post Read captured discussion
No unique explicit quoted action; no causal link assigned

Generation: 20261027T031046Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

The oil pressure gauge on my C4S occasionally has spasms of waving up and down between 3 and 5 before settling again. Is this a sign of an engine about to blow up, or a dodgy sender or sensor? Thanks R. Migration info. Legacy thread was 121196

POST 2Original post

Bubbles? Sender or dirty contact I should think. Migration info. Legacy thread was 121197

POST 3 / ORIGINAL POSTEROriginal post

Probably the water in the engine... not something I'm used to! Migration info. Legacy thread was 121219

POST 4Original post

Robert, does it coincide with variations in engine Revs? Migration info. Legacy thread was 121222

POST 5Original post

SHould spend quite a bit of time up near 5, especially when accelerating. But generally ranging between 3 and 5 is where it should be. Robert, bring your car round to mine and I have a drive in it - just to check it for you! :twisted: I'm all heart! Migration info. Legacy thread was 121238

POST 6 / ORIGINAL POSTEROriginal post

No, its usually when I'm cruising at 60-80. Accelerating or backing off seems to make no difference when its having a spasm. Chris- thanks for your kind offer- I'll bear it in mind! Migration info. Legacy thread was 121406

POST 7Original post

does it ever drop to 0? Mine did that and then dropped to 0 before coming back up. Turned out to be the sensor. Migration info. Legacy thread was 121409

POST 8Original post

That doesn't sound too great, constant speed usually means constant pressure in mine. As F1 says, could just be a sensor. Migration info. Legacy thread was 121419

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