Porsche Enthusiasts Club Forum

Oil pressure been sitting around the 3/2 mark over the last few days. Its 4/5 in the moring. However today the neddle been twitching like crazy bouncing from 3 too 1. Then the warning light came on with each stop or revs sitting at ideal. And would pick up 2 2 bar. Pulled over wiped the termnsils and pressure went up too 3/4 and would drop 2 2bar at ideal. But it's still twiching. I had a fluatly dash gauge b4, and sticky sender. How acturt are these dash gauges and readings.

Sounds like a dodgy sender or connection to me, the gauges aren't normally too bad.

Mine needed a new sender recently ... um actually for about a year - took a while to get round to it - as it started to die it read 5 and would flick between 3 and 5 at hot idle, then progressively read more at 5 occasionally dropping with a clicking noise. before it was swapped it was constantly reading high. New one seems to read slightly lower - 2.7/4.7 rather than 3/5, after a service. Only done a few hundred miles on it.

Got a spare second hand one that someone posted me for a fiver, in the end I decided to go for a new one for £30, you can have the second hand one if you like.

This is actualy my 2nd sender all ready. 1st £65 from Porsche shop and the lug snap off when doing the cables up finger tight. Tryed 2 fix it with a
Solder. This one came from euros I think. The original was sticking at 5 bar and was such a bicth 2 get off I actualy put a spanner between the lugs and removed! Try doing that with the ones they sell now! The one from euros actually stuck open the next day, and left the oil light on 4 a whole day and no movement in the niddle, then been fine sense that was 8000 miles ago. MIT be under warranty. Get a proper test done 1st.

Thanks 4 your offer, but I would rather try get a replacement 1st.

I'm sure someone will correct me, but I thought the warning light and gauge were wired separately, hence a low gauge plus warning light means you should be looking at pressure first and not clutching at senders?

Obvious stuff first, oil level, filter change check for oil leaks, mixing in coolant etc.

The pick up pipes to the pump crack, leading to starvation, the ball sticks in the pressure relief valve.

Hate to be the bearer of bad tidings, I had similar symptoms, which ended by spinning no2&3 shells! My low pressure was caused by wear to no2 big end shells.

I hope yours is a blocked filter!

Well the next 3 days after that post the pressure didn't drop lower then 2 and the light never came on again, however it would only rise 2 4 and a cold start and drop 2 3! Then on a warm start will climb 2 3bar and drop 2 2bar? So only ever decrease one bar from start position. Was 5 on start and 4 on ideal up until now. Will get a pressure check done b4 I fix the power steering pump mount.