18 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHlow oil pressure question
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(see above)
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No successful repair reported for this finding.
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Read evidence and context
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Reported cause · Original poster
Just wanted to follow up on this, let folks know what the problem was (see above).
Leading evidence: '(see above)' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is '(see above)' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace oil' (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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Reported cause · Original poster
Took to a porsche mechanic (indy) and they said that they feel that the problem is a sensor and not that the oil pressure is really low.
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Performed · outcome unconfirmed
just changed my oil to 15-10, now it's 2bar idling, it used to be around 1bar when using 0-40
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Suggestion
Your best course of action at this point is to replace the sensor.
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18 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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2 acknowledgements have no verified action link; they do not establish a repair result.
I have a 2000 996 convertible c4 that is registering low oil pressure. Car has 24k miles, and uses 5w40 mobil one synth. When car warms up, oil pressures at speed are 3+, but when idle and warm, oil pressure drops below one, nearly zero, and the oil light flickers, and turns off. After warm, normal driving puts oil pressure at 2-ish. Took to a porsche mechanic (indy) and they said that they feel that the problem is a sensor and not that the oil pressure is really low. Said the car runs great, and that if the oil pressure was really that low, they would notice a problem (knocks, rough idle, etc). Going to have it checked out again in a couple of weeks after an upcoming move with a dealer. Wondering if anyone else has this problem and whether this should be a concern. I don't appear to have an oil temp gauge, so I can't comment on that. Water temp is fine.
Any thoughts appreciated...
Your best course of action at this point is to replace the sensor. If the problem persists, connect a mechanical gauge. If that shows low pressure...then things get expensive.
Just wanted to follow up on this, let folks know what the problem was (see above). Thanks for the advice. I took my car in in early may (after moving/shipping car across country).
So, it turns out it was low oil pressure. Replacement of the sensor didn't work. Since my 996 (2000) has low miles (25k) there was some thought that maybe the oil system needed to be cleaned out. So we flushed the system and moved to a thicker oil. It helped a bit, but oil light would still flicker on when engine very hot. Anyway, after some investigation -- not a car guy so might get this wrong -- it turns out a spring in the oil pressure relief valve was broken. In the end it cost about $900, but he fixed a couple of other things. Kind of frustrating since the oil pressure relief valve was an easy fix.
However, this has been really frustrating because right after I got it fixed, the cable that opens the boot lid over the engine and is attached to the lever next to the drivers seat broke!
Gotta take that in now...
Thanks again for the advice...
Thanks for following up, not many ever do that, and it is really appreciated. Now I'm curious as to where this oil pressure relief valve is located. Those are good pressure numbers now.
I'm dealing with the same issue on my 2000 carrera and i've found this old thread. I called Boardwalk and they said they can't find a "pressure relief valve/spring" on the diagram. The drawing above is for a turbo and mine is non-turbo. Does anyone have the part number for the spring?
Thanks in advance.
I would try either of the following
996.107.127.53
996.107.125.51 which has been superceded by 99710712501
I pulled them off
http://dcauto.gotdns.com/illustration/index/454857735
which seems to indicate they are part of the oil pump assembly.
