For those who have erratic oil press sending units

[aquariuscsm]

I remember reading a few posts a while back and people were concerned that their oil pressure gauges were reading erratically. I think most cars I`ve owned have done this,due to either a clogged or failing oil pressure sending unit. This morning I removed mine,got a long needle (some people use a tiny drill bit) and cleaned the input valve out really good. Now it works like brand new.

 

[demarpaint]

Thanks for the tip, something I now remember from the past. My OP is reading a little lower than it normally does on my 93 Aerostar. I might just give cleaning the sending unit a shot.

Frank D

 

[artificialist]

Wherever I have worked, oil pressure sensors were simply replaced, but usually they only cost about $20-$50.

 

[oldmaninsc]

Originally Posted By: demarpaint
Thanks for the tip, something I now remember from the past. My OP is reading a little lower than it normally does on my 93 Aerostar. I might just give cleaning the sending unit a shot.

Frank D


The factory oil pressure gauge on your Aerostar is nothing more than an on/off switch. I've had 2 Aerostars and both were the same (one 87 and my current 95)
http://www.asashop.org/autoinc/march98/techtips.htm

There are instructions on one of the forums on how to modify it. It has something to do with soldering a wire in place of the 20 ohm in-line resistor and replacing the sending unit with a "real" one. If I find it, I'll post them later.

 

[artificialist]

Many Nissan V6 engines have the same thing, and that glorified on/off switch doesn't last more than 40,000 miles in many cases.

 

[TallPaul]

Get a mechnical gauge.