I just got a 97 trans am ram air convertible. I have noticed that the oil pressure seems to be low around 40 psi while idleing. My friend has a 95 ta and says his pressure is running around 60 psi while idleing. I was thinking it might be the oil pump is going bad. Anybody have any ideas?

 

Yeah, they seem to vary a bit (one car to the next) but 40 psi is nothing to worry about. Definitely not "too low" for idle. What pressures are you seeing at say 4500 rpm thru redline?

More oil pressure can be a good thing but it can also cost a few hp.

-Mindgame

 

Hey, I am seeing 20psi at idle when warm, and 40psi when driving 60mph in OD. So you aren't too bad off. I've had 2 LT1's, and they were both this same way.

 

On a hot day, I get about 35 psi when idling (5W-30 Mobil 1) and about 60 psi on the highway.

Greg

 

after my H/C install, i'm seeing about 18psi at idle and 25~ or so at cruise 2200rpm

WOT it barely goes above 40psi

normal?

 

My oil pressure is 20, all the time, no matter what. Might go a little over and a little under. I'm guessing its the oil pressure sending unit, who knows...

Or it could mean a rebuild!!

 

mine idles @ 65psi when i first start it, after its been run for a while, it'll drop down to 40psi. When the motor is revved it goes all the way up to 80psi depending on how high i rev it. Of course, The motor has ~3000 miles on it and a melling high volume oil pump.

 

Cold start-up - ~42psi and about ~20 idle after warmed up.

 

How many miles do you guys have on you're cars? My odometer says 50k but i am worried that it might be wrong because the oil pressure is so low....correction to what i said earlier the oil pressure is at 20 psi at start and 40 psi when warm.

 

Mine has ~78k.

 

82,000miles

before i did H+C, my oil pressure was ~40-45 at start up, ~25warm idle and over 60 at WOT

 

close to 73,000 and when first fired up the oil pressure stays around 45 or so for a bit, then after driving a while it will drop and idle anywhere between 20-25psi

 

Yeah mine is around 50 at start up and when the engine is warm it is around 20 or 25.

 

mine as well...40 (half tick maybe little over)..then 15 minutes of warming...18-20 at hot idle and 40 no matter what rpm after that (even redline)...i have been told this is good..i run 10W30 Mobil 1 synthetics since day 1