Oil pressure is funny

[Fyke90GSX]

I keep noticing on my 1990 Eclipse GSX that my oil pressure gauge reads funny. My oil pressure usually sits at the half way mark when I am driving and then drops all the way to the far left side when I am not. On my friends (1G eclipse)car the oil pressure usually sits 3/4 of the way when he is driving. Anybody know anything about this? Do I have bad oil pressure or is my gauge just screwy? Anybody with any info or suggestions please let me know. About two weeks ago I replaced my oil pressure switch because it was leeking. I dont know if it has anything to do with it. The oil pressure gauge seems to be acting the same though even with the new oil pressure switch. I just hope the gauge is faulty and not anything major.

 

[BUCK]

half way mark when I am driving and then drops all the way to the far left side when I am not

Per the manual it can be below the Low mark at idle - but if I understand you correctly it's ALL THE WAY - do you mean ALL THE WAY to the far side at IDLE? - If so that is LOW Indication at idle & 1/2 way is not very high while running either - mine are higher. Is the Idiot Light (runs off your new Pressure Switch) not flickering at idle? Seems like it would be! I'd check the Connectors at the Gauge Bell & Pressure Switch first - They catch hell down there - You probably should slap a mechanical gauge on it at one of those fittings & crosscheck - You could try going up a notch on Oil Weight - run 10w 40 vice 10w 30 for example - I wouldn't run 20w 50 up North where you are - I suppose you could do a motor flush - Or pull your Oil Pressure Relief Valve out of the Oil Filter Housing & make sure it's not fouled & stuck partially open! - HOPEFULLY it's NOT a bearing clearance problem - As in one that;s getting ready to spin & kill your Crankshaft!!! - This is kind of a BIGGY... If the above list doesn't fix it - It would be prudent to pull the Oil Pan & check rod & main bearings ASAP!!!

That's why Mitsu put the gauge there~!

 

[Defiant]

Probably a tired sender.


Don't ever compare your gauges to another's, it'll drive you batty.

 

[BUCK]

The Gauge Bell is available via the Aftermarket - $40-50.

 

[Fyke90GSX]

Buck, to answer some of your question:
do you mean ALL THE WAY to the far side at IDLE?
It sits at the first bar when I am at idle, not all the way to the far left as if the car was off. Sorry about that.

My Oil idiot light has only come on once since I bought the car(July 03') and that is when my OP switch went. I havn't seen it on since.

Thanks for the tips guys. Lets hope one of these fixes the prob. God, I love this website

 

[Eliminat0r]

it sits at the first notch at idle thats where mine sits and when im driving its a lil bit above the 1/2 way mark

 

[BUCK]

It sits at the first bar when I am at idle, not all the way to the far left as if the car was off. Sorry about that.

That is actually a little HIGH at idle if you were to look at the Manual - but your fine! Man don't wind us up like this!

 

[91dsmeclipse]

my oil pressure goes pratically all the way to the left to almost as the car is off and about half way when im driving i thought that was normal thats what someone told me.

 

[Denji]

i'm assuming 2gs have a different guage?