why is my oil pressure not going past a 1/4 way when im on the road

[supisarethebest]

i have a feeling that my oil pump is no good cause my oil pressure gauge isnt going past a 1/4 of the way when im on the road and i think that might be the reason my turbo crapd out(not enough oil being circulated through the engine and turbo,my car also runs a little rought,help

 

[hvyman]

remove sending unit, screw in oil pressure gauge and read the readings and you will know for sure

 

[gaboonviper85]

oil pumps really dont go bad very often....its very rare as they are a very simple design! odds are you either have a stuck piston squirter, bad guage, bad sender, bad wire, or stuck oil relieve valve, or stuck oil cooler bypass valve.

 

[grimreaper]

or bearing wear

 

[SupraDupra907]

Hey, I had the same problem with my mk3 supra when I first got it. I put it 10w30 synthetic oil, and was getting at best, 10psi on the highway?! I then thought, maybe the oil was too thin, and changed the oil and just put regular 10w30, and sure enough that was it for me.

 

[johnathan1]

My Supra did this for over 4 years and 20k miles...never had a problem.

 

[jdub]

Hey, I had the same problem with my mk3 supra when I first got it. I put it 10w30 synthetic oil, and was getting at best, 10psi on the highway?! I then thought, maybe the oil was too thin, and changed the oil and just put regular 10w30, and sure enough that was it for me.

^^^ This is not someone you want to listen to


I still haven't figured out what "my oil pressure gauge isnt going past a 1/4 of the way" means in psi. Especially at idle and 3000 RPM per the TSRM

 

[dumbo]

or bearing wear

X3? Haha

Some details on your setup would help.

 

[supisarethebest]

its all stock except for 3'' downpipe,catless,and 3'' dragger exhaust thats it,had a rebuild about 2k miles ago and a hg shortly after the rebuild

 

[dumbo]

its all stock except for 3'' downpipe,catless,and 3'' dragger exhaust thats it,had a rebuild about 2k miles ago and a hg shortly after the rebuild

Rebuild and then a HG 2000 miles later? Sounds like a good rebuild.

If it was properly rebuilt then bearing clearances should be fine, could be any of the things gaboon said. But until you get a hard gauge on there I wouldn't do anything rash.

 

[NewWestSupras]

My oil pressure was really low with synthetic, so I mixed in some Kellog's instant fudge, and it shot right up!! I was good to go after that. Then I got a really bad boost leak, so I used the colored pvc tape, not the normal black stuff, and man does it haul now!:sarcasm:

 

[Justin]

a QUArter of the way means absolutely shit. Get a real oil pressure gauge then report back with actual numbers then maybe someone will tell you what's going on, or you'll find the worthless factory oil pressure gauge is just that.... worthless....

 

[paradox616]

a QUArter of the way means absolutely shit. Get a real oil pressure gauge then report back with actual numbers then maybe someone will tell you what's going on, or you'll find the worthless factory oil pressure gauge is just that.... worthless....

better than just a idiot light....


but i agree get a mechanical gauge on there.

 

[Zumtizzle]

a QUArter of the way means absolutely shit. Get a real oil pressure gauge then report back with actual numbers then maybe someone will tell you what's going on, or you'll find the worthless factory oil pressure gauge is just that.... worthless....

The factory pressure gauge with a new sender isn't all that bad.

The temp gauge on the other hand LOL.