now ive got erratic oil pressure

im not loosing any oil,no water in my oil,

my psi has gone down to about 30 psi at 3000 rpm

down to about 10 psi at idle

sometimes its ok -30 psi at idle and sometimes its not

this is all on a stock pressure gauge of course ,im getting a new 1 on sat(with oil change)any ideas guys????

 

 

 

Ideas about why its doing that? It a bad gauge in the first place. The Oil Pressure sender unit is bad. Mines doing it now. I did an oil change today and I was gonna out my new gauge on too, but I couldnt get to the sender unit.

 

Stuart

My guess is oil pressure sender unit.

 

My oil pressure was low before I changed mine. When I sat at a set of lights with the engine warm, the needle would hit 0 and scare the smelly stuff out of me. I could rev it to 2000 rpm and the needle wouldn't budge .

 

But the funny thing was, I never heard the lifters ticking, so I put 2+2 together and decided that the oil pump WAS working enough on tickover to 'inflate' lifters. So I fitted another sender unit and hey presto!! sensible oil pressure readings LOL

 

Hope this helps!

 

Robert.

 

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I only use the brakes so I can accelerate all over again.

yup, sounds like the sender unit.

 

if you know anyone thats got one, you could test the pressure with an oil pressure test gauge.

 

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I feel the need, the need for speed!

 

So we are in agreement that its the sender unit?

what viscosity oil are you using? i had this problem cos i was running 0-30 castrill RS. this is FAR TO THIN!! put magnatec 10-40 in it and oil presure is bang on now!

cheers Kris

 

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im using castrol rs 10-60

 

Hmmm...weird, My oil pressure was way out, read 0 most of the time when warm. It's loads better since I changed the oil - dunno what it's s'posed to read but at least it reads more than 0 now :-)

 

I got a replacement sensor from courtesy - waiting 'til next oil change to fit tho'....

 

RobH

They say you can change it while the oil is still in. You have to be quick getting the new one into place though.

you wont loose much oil changing the sender (if any at all), unless you try to change it with the engine running!!!!

 

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I feel the need, the need for speed!

 

Paul is right, Dave Buckley changed mine a while back and no problem with any oil loss once the sender is unscrewed!

 

Good idea to put some Nissan red sealant on the thread of the new one before you put it back in though.

 

Mine was playing up, cured it!

 

 

 

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