Kruges Posted June 17, 2008 Share Posted June 17, 2008 the oil pressure gauge in my 1994 r33 gtst droped to below one yesterday, no warning light came on however. the gauge now varies in oil pressure depending (from what i can gather) on revs. for exaple when i first noticed the oil pressure i was at a set of traffic lights and i only drove it far enough to pull over, as i drove off oil pressure picked up tp about 2/3 and droped again once i took my foot off to about 1 and jus above 0 when i pulled over. in 4th doin about 90kms/h the gauge will read 4ish and then put it in 5th or take my foot off and it slowly drops. oil level is fine as this was the first thing i checked. im going to check the sender unit this weekend and i dont plan on driving the car until this is sorted. please if you have any ideas or know of any common problems with oil pressure with the r33 let me know any help would be much apreciated. Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/ Share on other sites More sharing options...
Amec Posted June 17, 2008 Share Posted June 17, 2008 the oil pressure gauge in my 1994 r33 gtst droped to below one yesterday, no warning light came on however. the gauge now varies in oil pressure depending (from what i can gather) on revs. for exaple when i first noticed the oil pressure i was at a set of traffic lights and i only drove it far enough to pull over, as i drove off oil pressure picked up tp about 2/3 and droped again once i took my foot off to about 1 and jus above 0 when i pulled over. in 4th doin about 90kms/h the gauge will read 4ish and then put it in 5th or take my foot off and it slowly drops. oil level is fine as this was the first thing i checked. im going to check the sender unit this weekend and i dont plan on driving the car until this is sorted. please if you have any ideas or know of any common problems with oil pressure with the r33 let me know any help would be much apreciated. its normal for oil pressure to rise with the revs. what oil pressure is it running at idle? Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3952041 Share on other sites More sharing options...
blind_elk Posted June 17, 2008 Share Posted June 17, 2008 How old is the oil? What grade? What brand? Of course the pressure will vary with revs, because the pump is driven by the engine. Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3952132 Share on other sites More sharing options...
Silver_R34_GT-T Posted June 18, 2008 Share Posted June 18, 2008 my r34 is doing the exact same thing, 2000ks after oil change :S Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3952539 Share on other sites More sharing options...
br3ndan Posted June 18, 2008 Share Posted June 18, 2008 Get a aftermarket oil pressure gauge. Stock ones are POS. Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3952852 Share on other sites More sharing options...
msnismo Posted June 18, 2008 Share Posted June 18, 2008 ^^^^^ +1 Yep don't rely on standard... well known for faulty readings.... for example... my standard one does not exceed 4 no matter what the conditions... when its hot, at idle it reads slightly off 0! My blitz mechanical one reads between 6 and 6.5 bar on cold start (idling) .... once warm and driven for a while (ie oil is hot as) idle is 1.5 bar..... I can see the gauge move for everything... ie when the pressure relief valve opens... Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3953596 Share on other sites More sharing options...
Kruges Posted June 18, 2008 Author Share Posted June 18, 2008 its normal for oil pressure to rise with the revs. what oil pressure is it running at idle? it sit very close to zero once its warm at idle. i plan to keep it off the road this week until i sevice it the weekend and check the oil pressure with another gauge. that should narrow it down. Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3953703 Share on other sites More sharing options...
boostin_r33 Posted June 18, 2008 Share Posted June 18, 2008 thats rite dont really take notice of the standard one their usually all over the place but it depends on the car i guess! Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3954440 Share on other sites More sharing options...
HotPlates Posted June 18, 2008 Share Posted June 18, 2008 My oil pressure on my R33 Gtst goes low every time I need an oil change (around the 5,000 km mark) After the oil has been changed the guage reads normally. Hope this helps. Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3954646 Share on other sites More sharing options...
Amec Posted June 19, 2008 Share Posted June 19, 2008 Get a aftermarket oil pressure gauge.Stock ones are POS. agree, get an aftermarket gauge. the standard oil pressure senders tend to fail. Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3957486 Share on other sites More sharing options...
Kruges Posted June 25, 2008 Author Share Posted June 25, 2008 sorry for taking so long to reply, have been out of internet access. went and bought a mechanical gauge just to use to try and help work out where the problem was. according to the gauge i have perfect oil pressure and increases perfectly with revs. and on that note im currently in the process of purchasing a good quality aftermarket gauge. thanks heaps for your help. Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3971064 Share on other sites More sharing options...
Rowdyr32 Posted June 27, 2008 Share Posted June 27, 2008 Makes sense why mine is eratic. Jumps up and down. Might try another dash cluster I have. Cheers Guys Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3975892 Share on other sites More sharing options...
Amec Posted June 27, 2008 Share Posted June 27, 2008 Makes sense why mine is eratic. Jumps up and down. Might try another dash cluster I have.Cheers Guys the problem can also be caused by the oil pressure sender that screws into the motor, not just the dash. Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3976345 Share on other sites More sharing options...
Kruges Posted June 27, 2008 Author Share Posted June 27, 2008 yup. after talking to a mate who used to have an r32 gtr i found out that his sender unit for the gauge had failed on him before. not sure if its a similar unit to mine however. Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3976627 Share on other sites More sharing options...
teng Posted June 28, 2008 Share Posted June 28, 2008 May i ask, where exactly is the oil pressure sender on the motor located on a R33 gts-t? Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3978468 Share on other sites More sharing options...
Shaun Posted June 30, 2008 Share Posted June 30, 2008 Yeah, ive got the same problem with a shit gauge. Can you purchase new senders from nissan? Will this fix the problem? Shaun. Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3982036 Share on other sites More sharing options...
Kruges Posted June 30, 2008 Author Share Posted June 30, 2008 my sender unit was below the oil filter and to the left a bit. theres a rubber boot covering the plug from it and it just unscrewes out of the block (i managed to get a spanner onto it when i was undoing it, fairly sure it was a 17mm). does anyone know if you can purchase aftermarket sender units? from what ive heard from people who replaced them with the standard one again. find that they play up again anyway. Link to comment https://www.sau.com.au/forums/topic/224421-low-oil-pressure/#findComment-3982134 Share on other sites More sharing options...
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