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Hydraulic lifter noise

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YOUR RESEARCHHydraulic lifter noise

Leading reported evidence

Recommend by pcna has lessened it somewhat

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Suggestion
The switch to 0W-whatever Mobil One oil as recommended by PCNA has lessened it somewhat.
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Hydraulic lifter noise

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Leading evidence: 'Recommend by pcna has lessened it somewhat' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend by pcna has lessened it somewhat' (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.

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Replace of oil

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Unsuccessful attempts: 1
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Suggestion · Original poster
Never had it on my 993 or 3.2 Targa, so I can't decide whether to live with it, have it looked at, or wait and see what happens after a change of oil.
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Hydraulic lifter noise

Frequently discussed actions (2)

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Recommend by pcna has lessened it somewhat

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
The switch to 0W-whatever Mobil One oil as recommended by PCNA has lessened it somewhat.
Original post Read captured discussion
Hydraulic lifter noise

Replace of oil

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 · Original poster
Never had it on my 993 or 3.2 Targa, so I can't decide whether to live with it, have it looked at, or wait and see what happens after a change of oil.
Original post Read captured discussion
Hydraulic lifter noise

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

Rennlist: 1 discussions

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Generation: 20261026T172408Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

How many of you get a faint ticking from a hydraulic lifter for the first few seconds after cold start ? My '99 C4 (25k miles) quietly ticks for about 10-15 seconds if left to idle, but goes quiet as soon as revs applied. Doesn't do it again until left overnight. Never had it on my 993 or 3.2 Targa, so I can't decide whether to live with it, have it looked at, or wait and see what happens after a change of oil. Castrol Formula SLX in now. I don't like having engines taken apart unless there's a good reason (still got 11 months warranty though). Thanks for any advice. DRC (UK)

POST 2Original post

This is normal. As long as it goes away when the engine warms up there is no problem.

POST 3Original post

Mine does it to. The switch to 0W-whatever Mobil One oil as recommended by PCNA has lessened it somewhat.

POST 4Original post

It is non-fatal, and I can tell you they will not tear down your engine for that (I asked more than once), merely annoying. Mine started with the tick after about 10,000 on the clock. I wonder if it has anything to do with the very low cold temperature viscosity of the specified Mobile syn-oil? I have been thinking of trying a higher-vis synthetic next change. Has anyone tried the 15-50w or any of the other variants to combat this?

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