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YOUR RESEARCHOil pressure issues - white knuckled it all the way home
Leading reported evidence
Check )
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No successful repair reported for this finding.
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Performed · outcome unconfirmed
This is most likely an easy fix (as long as you have oil, which you checked)
Oil pressure issues - white knuckled it all the way home
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Leading evidence: 'Check )' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'easy fix (as long as you have oil' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check )' (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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Suspected cause
This is most likely an easy fix (as long as you have oil, which you checked)
Oil pressure issues - white knuckled it all the way home
sending unit
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Oil pressure issues - white knuckled it all the way home
Check computer
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Suggestion · Original poster
Then i check the computer again to see if the message is still there, but this time reads "No error messages present".
Oil pressure issues - white knuckled it all the way home
Check on
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Suggestion
do some checking on that, other issues we have seen are oil presure relief springs.
Oil pressure issues - white knuckled it all the way home
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.
11 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.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
No change in the car's behaviour or driving while all this is happening of course, but this proceeds to happen about 4 times.
Almost had a heart attack today on the drive back from home. Several times, the oil pressure dropped all the way to 0, then bounced back to 5. Then the computer flashed "Failure Warning". No change in the car's behaviour or driving while all this is happening of course, but this proceeds to happen about 4 times. I white knuckle it back home, shut her down, then take an oil level measurement (which shows almost full - just one empty bar at the top). Then i check the computer again to see if the message is still there, but this time reads "No error messages present". The car then runs at full oil pressure (all the way at 5) when this fault doesn't happen. Usually it runs with good pressure, but this seemed too high to me...
WTF? This is getting ridiculous. First the RMS, then the coolant, now this. I almost just want this engine to explode so i can take the hit and get this torture over with. As it is, i really can't enjoy the car because of this damocles sword over my head... Sorry just frustrated...
slow down, its not a big deal (unless it was me) most likely the sending unit... do some checking on that, other issues we have seen are oil presure relief springs. not sure how tough a job that is. This is most likely an easy fix (as long as you have oil, which you checked)
I am away for the weekend but wanted to put a quick post up for you
Ed
its on the right side of the engine as you face it, near the top. It has two wires held on by slip connectors. Remove the wires and clean up the electrical contacts and put them back on before you bother replacing the sending unit. or, just ignore the problem like I do. If the pressure leaves suddenly and comes back suddenly, it is the sending unit.
Thank you all for the responses - esp Ed. I'll check that. I posted the original message right after i got home and was a little frustrated. The car runs fine... most likely the sending unit. i'll keep everyone posted...
Same exact problem: 04 C4S: Oil pressure 4 to zero, back to 4, back to zero. "Failure Warning". Care still ran great with no problems. Scared me so much that I had car towed to shop. Sending unit is relatively cheap and is a real common problem on 996s. Even was covered by my Por"ache" Certified Warranty, which usually doesn't cover anything! Just replace it. Its really simple.
Thorin: I just had my sending unit replaced today at Autowerks by Courtney and these things have a short life span from what I'm told. Your not too far away from him - I don't know where you take your car but he's a great guy and the only factory trained guy outside of the two dealers in our area. The part cost me $80 plus 1 hour labour @ $105 bucks and he checked to see if it was a wiring issue or bad contacts first to save me money. They are booking from next Weds from what I overheard from his girls on the counter.
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