Low oil pressure test!!

[ProjectAWDeagle]

Hello,

Well, recently I bought a 1990 Eagle Talon AWD 5 speed from a dealer that was convinced that it had a bad engine. They thought this because it had no oil pressure. I had been looking for one so I got it, knowing that I would probably have to order a replacement engine.

I got around to doing some testing on it last night. I went out and bought a good quality pressure quage and hooked the guage up directly to the sending unit and left the stock guage hooked up to compare. The engine didn't completely warm up, however The aftermarket guage was reading at around 18PSI and it was very responsive when I revved the engine. It went up to around 80PSI. It was snowing outside (I did have a covered tent) so it was pretty chilly, I'll do further testing today with it to get it warmed up properly.

So what do you think is really wrong with the car? Based on the oil pressure, I can't see anything wrong with. I would like to hear your opinions on this.

Thanks, Michael

 

[laserblue]

•In all probability the oil is flowing fine.... but I cannot be sure. If oil was not circulating, running the car for a few minutes would kill your engine for good!!!.. and so far, that hasn't happened.

•You can test the dash oil gauge [note: I spelled it right] by disconnecting the wire that is attached to the sender unit and grounding it to any close-by metal. If the gauge needle goes up full scale then it works. If the needle doesn't budge, then either the gauge is bad, or a wire/connection is screwy.

 

[SportinWood]

dude thats good pressure, if it runs ect. then the dealer was stupid like most are and ure good to go. no knocks, funny sounds ect?

 

[ProjectAWDeagle]

Hello

SportinWood, No knocks. Actually sounds pretty good. I still have to warm it up properly and then take another oil pressure test.

Lets hope there is nothing wrong with it!

Michael

 

[JRod]

Try swapping out the sending units (yes there are two of them.) If I remember right, the bell shaped one by the oil filter was the one causing mine to read very low. then there is the other one which I believe controls the idiot light. They are only available from Satan, but they don't cost much.

 

[6bolt2gen]

i have heard alot of people including myself having trouble with the oil pressure gauges

 

[SportinWood]

I have an aftermarket guage and it was a screwy installation... more or less trial and error. I had to hook up the sending wire for the aftermarket AND the stock unit. It doesnt sound right but it works.....

 

[hurley4387]

hey im 16 and yea it doesnt take that much to know if ur engine is bad just by listening. if it has a hollow loud knocking noise towards the bottom of the block then its a bad engine becuz that means your bearings are bad (main and rod) which means older owner b4 you didnt take care of it. so if it doesnt knock ur fine but dont be fooled by a ticking in the head thast just ur lash adjustments/lifters those will tick so if you have a ticking dont worry DSM lifters are prone to go out quick. if ur worried about your oil psi gauge being so low that just means ur engine is loose or in other words worn parts no biggie just an old car if theres no knocking then keep the car and dont listen to someone else judgement ever especially a car dealer they always lie to get the sell so they make there money they dont care what happens to you on the road get to know the DSM engines (4G37,4G63,4G63T)<--eclipses,lasers,talons. dsm is also 3000GT so i dont wanna make it look like i dont know my cars and yea if ur not sure bring a friend or someone who knows about engine noises. alrite thats all i have to say ill check this forum here and there to see if theres any new replys to this PEACE

DSMike

 

[hurley4387]

then again those ppl could be write and the gauge could be bad or wires messed up but i doubt that i bet that dealer doesnt know shit about cars. if theres no knocking or any problems when you drive dont worry about it just means you have worn parts from aging just keep the proper oil in it and drive it nice dont race it alot but if ur that worried about the oil psi gauge rebuild the engine thats the only way ur gonna get it back normal unless its something minor like some clogged PCV valve or something alrite peace

DSMike

 

[mmughal]

Originally posted by ProjectAWDeagle
Hello

SportinWood, No knocks. Actually sounds pretty good. I still have to warm it up properly and then take another oil pressure test.

Lets hope there is nothing wrong with it!

Michael

Hi, Were able to fix it, i have a same problem, Pressure Drops to Low and doesn't come up then Engine Check Light comes on.

Any Ideas whats going on?

 

[ProjectAWDeagle]

Hello

Well, since then, I have done a proper oil test and a compression test. Both turned up good. There is in fact nothing wrong with the car. I have around 12 to 15 PSI of oil pressure and my compression test results were 150PSI for each cylinder.

Other then that, the car runs great!

Michael

 

[mmughal]

So this means I have nothing to worry about my car also runs great, I will have the pressure test tomrrow.!

Thankx man

 

[Woody91GSX]

These engines have low oil pressure at idle. It's just something you learn to deal with.

 

[hurley4387]

hey i was wondering well i got my oil psi tested and its fine but everytime i drive around even if its for only like 10-15 minutes after the engine heats up my stock gauge sits low as hell and i dont see any problems with faulty wiring and my engine is kinda loose but i was wondering well i know when ur engine gets hot ur oil gets hot which makes it thinner and oil psi does drop but i was wondering does anyone recommend an oil cooler system... anyone know if they work good or not cuz im guessing if its gonna keep my oil cool its gonna keep my oil psi good on the stock gauge... and i dont really feel like buying and installing a new gauge... so any help would be good thanks guys


DSMike