linuxrunner

ok so i got a new SR5 guage cluster off craigs list for 20.00, i also got the oil pressure sending unit that goes with it, before i installed the sending unit my oil pressure always sat at 0 but after installing the sending unit when i turn the key to the acc position the oil pressure guage will jump up to what i figure is probably about right, But when i start the truck it drops back down to 0 also guage does not seem to move no matter the RPM's when engine is on. Is there another way to test to make sure that i have oil pressure? i really hope this is just a bad sending unit.

trythis

Did you get a new sending unit? or just an old one that came with it?
I am confused about your pressuere reading at 0 before installing the sending unit. Did you use the old idiot light sending unit with the new gauges for a while? Was your oil light on for a while?
xplain, please.

linuxrunner

sorry, i got the old used one so it might not work. I unplugged the idiot light before installing the new guages. Once i installed the new/used sending unit is when it started to show the correct (i think) oil pressure in the acc position.

Tdubbs05

sure you actually have oil moving around in there? lol man i had a great experience on my 1st car, a 88 celica. i was going 65 on the freeway w/ cruise on. suddenly started hearing clicking that got louder and louder till it started shaking that car. i noticed the oil gauge was at zero and then the car stalled. ended up shooting a connecting rod right out the block...well that sucked by now i got a 4runner!!!

Marc

You won't have any oil pressure with the key in the acc position.
You only have oil pressure when the engine is running.

You could hook up a mechanical guage to test your pressure.

linuxrunner

i'll try to pick up a guage today. thanks Marc

Marc

Keep us posted.