oil pressure at low

[jdawg901]

changed oil last thurs. used 10w 30 mobil 5000 it was on sale ,but before my oil pressure was fine now it drops down close to 0 but when i put it in neutralit moves up and check gauge light goes off.the truck has a lot of miles should i have used a better brand and better grade or am i lookin at some oil pump probs. also goes back in operating range when drivin only goes down at a stop

 

[blueflamed03]

how many miles? You may want a thicker oil.

 

[jdawg901]

300,000 but i read maybe my oil pressure switch may be bad easy fix try taht first .my heater hose came loose the other day sprayin everythihg in the back

 

[ravingmadman]

300K?!?!?!?!? WTF? That's awesome!!!!

 

[Biggwaukegan]

Im gonna say you need a new hp oil pump. Go with melling. Bet that fixes it.

 

[jdawg901]

is it a major operation replacing the pump,first ill try the switch and cross my fingers

 

[3-lot]

before you get to excited, put a master guage (mechanical guage) in place of the oil pressure sending unit at the back of the block and get a "real" reading of what your oil pressure is at. That is the only accurate way to see the pressure and to see if its a problem.

 

[96ProCompTahoe]

before you get to excited, put a master guage (mechanical guage) in place of the oil pressure sending unit at the back of the block and get a "real" reading of what your oil pressure is at. That is the only accurate way to see the pressure and to see if its a problem.

x2 you'll be changing the sender anyway

 

[jdawg901]

i dont have this where do i get it or go get it done

 

[blueflamed03]

with 300K, thicker oil (if gauge was fine prior to the recent oil change) will give you better pressure. With 300K, that's really loosened up bearings, rings, tolerances....

 

[jdawg901]

replace pressure switch back to norm

 

[IRQVET]

J/K . . .. I do want to see pic's though . . . .

 

[bottomline2000]

I can't seem to get to my oil pressure sender. How are you guys getting to it so easily. My big paws get stuck trying to reach it!

 

[jdawg901]

yeah youll have to use big channel locks or get some one with smaller hands easy though