how are your stock toyota oil pressure gauge reading at idle? be it on a v6 or 4cyl

especially on those truck which had a sr5 gauge swap .

what are the signs if the oil pressure sending unit are defective?

Thanks

 

The stock oil presure gauge in our trucks arn`t very accurate, at warm idle on my 4Runner reads at about a quarter on the gauge and when driving it reads close to half on the gauge. If the sending unit is bad the gauge can read real low or not at all.

 

thanks myyota

 

Does any one know the actual psi reading? I picked up a auto meter cause the sr5 gauge cluster I have doesn't work even with the new sender. I think I had something like 50 psi during my test hook up.

 

I recall the FSM saying something like no less than 8 psi at idle, and greater than 45 psi at 2500 rpm. I could be way off though, it's been a long time since I've looked at that thing.

 

@richf

http://en.wikipedia.org/wiki/Oil_pum...bustion_engine)

I have a slight "nose bleed" reading this, but helped me a little to understand.... I plan to read it again and expects the same nose bleed but would be hoping to digest it even more.

 

I have an 02 tundra with the 4.7 v8 recently the oil pressure was low at idle and while I was driving so I changed the sending unit nothing changed so I put in a manual gauge. Now on the manual gauge when cold at start up my oil pressure is between 75-80 PSI. When warm & driving about 55 mph. it is about 45 PSI. When I stop at idle its between 10 & 12 PSI. Does anyone know anything about this have any suggestions please let me know.

 

Check the FSM, it will have the readings you are looking for

 

You still got the autometer hooked up? mine is reading about the same, "70"psi when its cold out and just fired her up, after shes warm its 20psi at idle...
what is yours reading?

 

My truck is down right now and I never checked the reading when it was warm. I'll let you know when I get it back up and running.

 

sounds good, you using the autometer sender to? also running the adapter for the fittings?

 

ya same setup.

 

good stuff, im interested to see what ya getting.. i have a feeling 70psi on a cold start is a little high..

 

I dont see how it could hurt anything

 

50+ on cold start, 10 or so @ idle.

25k on home rebuilt 22re with GOOD parts.