C5 oil pressure

[Dave]

I am a new member and I am not sure of the propriities here on the forum.

I recently bought a '01 coupe. The car is great but I am concerned about the oil pressure. When warm and at about 800 rpm I'm getting about 34 pounds. At 1500 rpm it jumps to about 43 pounds. Are these numbers in the normal range for an '01 with 12000 miles on it?? They seem a bit low.

 

[Tuna]

Sounds about right to me. I see similar numbers on my 03. Ditto my old 98.

 

[bob kissinger]

When I first saw the heading for your post, I thought it was going to be a question about a "pegged" oil pressure reading. In answer to your question, YES, both of your readings are normal. At idle you should be just under 40. As you increase RPMs you will go over 40, but not by much. Remember, too, that other factors can effect your pressure by a couple on points.


PS - Th reason I thought you were going to ask about a "pegged" oil pressure, the sensor on these is prone to failure and giving extremely high readings.

 

[MM-C5]

PS - The reason I thought you were going to ask about a "pegged" oil pressure, the sensor on these is prone to failure and giving extremely high readings.

I've always referred to Chevy as being the original low pressure engine. :L

Seriously though, that is a good tip to know Bob. Thanks!

Tom

 

[Dave]

Thanks for the replies. I was a bit concerned because my '87 coupe had consistantly higher numbers.

 

[Blade]

I am a new member and I am not sure of the propriities here on the forum.

Welcome Dave, you are doing great with the post as a new member. Feel free to ask about anything on this forum. See how quickly fellow corvette owners will reply.

Love that Pewter color, I had a 98 and got more complements about the Pewter than I do with the 03 Annie Red.

 

[pvtpilot]

As others have already said, oil pressure numbers are fine.. and, as most high performance engines builders will tell you, it's not the pressure that is the big issue, it's the flow.. Think of it like the garden hose with the nozzle turned to the jet position.. lot's of pressure at the nozzle, but not as much flow as you get without the nozzle.
Enjoy the car.. if you are like most of us, once you own a Vette, there will be one (or more) in your estate...

 

[vettenuts]

Some food for thought. Mobil-1 oils (5W-30 and 10W-30) are down at 10 Cst at 100 degree C, almost a 20 weight oil. Also, you filter may effect your oil pressure as well. There are other oils, within the 5W-30 range, that have higher viscosity within the allowable 30W range at 100 degrees C from which you will see an increase in hot oil pressure.

 

['04 Torch Red]

I am a new member and I am not sure of the propriities here on the forum.

I recently bought a '01 coupe. The car is great but I am concerned about the oil pressure. When warm and at about 800 rpm I'm getting about 34 pounds. At 1500 rpm it jumps to about 43 pounds. Are these numbers in the normal range for an '01 with 12000 miles on it?? They seem a bit low.

=========================================================

Sounds normal to me....have you looked at your coolant temp yet???Don't be shocked to see it a bit high..thats normal also...

 

[Vettehead]

Pegged Oil gauges

When I first saw the heading for your post, I thought it was going to be a question about a "pegged" oil pressure reading. In answer to your question, YES, both of your readings are normal. At idle you should be just under 40. As you increase RPMs you will go over 40, but not by much. Remember, too, that other factors can effect your pressure by a couple on points.


PS - Th reason I thought you were going to ask about a "pegged" oil pressure, the sensor on these is prone to failure and giving extremely high readings.

;help​

I just 'Pegged' my oil pressure gauge on my '01 coupe, and my DIC is showing 130 psi (whoa :eek ). I turned the engine off, then on again to see if the psi would drop back down to normal; but it stayed at 130 psi. Now while I'm waiting for the engine to cool down, I'm checking the forums for similar problems, before I start it up again and see if all goes back to normal. Does anyone know if there are any adverse affects to the engine if the pressure sensor is not working properly? Can I wait until the weekend to get it fixed, or should I get it taken care of ASAP?

:confused​

 

[bob kissinger]

;help​

I just 'Pegged' my oil pressure gauge on my '01 coupe, and my DIC is showing 130 psi (whoa :eek ). I turned the engine off, then on again to see if the psi would drop back down to normal; but it stayed at 130 psi. Now while I'm waiting for the engine to cool down, I'm checking the forums for similar problems, before I start it up again and see if all goes back to normal. Does anyone know if there are any adverse affects to the engine if the pressure sensor is not working properly? Can I wait until the weekend to get it fixed, or should I get it taken care of ASAP?

:confused​

Sure sounds like a bad sensor, you have all the symptoms. Here is the trick to see if in fact it is the sensor. Turn your key to the "on" position but DO NOT start the engine. In this "on" position, all the electronics (including the gauges) will function. As the engine IS NOT running, a good sensor (and gauge) should read 0. With the engine NOT RUNNING, a bad sensor WILL give you a pressure reading. If it is the sensor, it's OK to drive.

PS - It is a $40 part and not too difficult to replace (no, you can not repair it). The challenge is that the sensor is behind the intake manifold. You have to move the manifold out a little to get to the sensor. Dealers quote about 1.5-2 hours labor but WILL stick you with a REALLY BIG BILL. Some folks have reported quotes of $450 to replace this $40 part. BEWARE!

 

[Vettehead]

Pegged Oil Pressure guage

Thanks for the quick reply, I'll check it out using your excellent 'quick trick' below and go from there. Thank god I have an extended warranty.
Now what if the gauge shows 0 psi with the engine off and 130 psi with the engine on :crazy ?

Sure sounds like a bad sensor, you have all the symptoms. Here is the trick to see if in fact it is the sensor. Turn your key to the "on" position but DO NOT start the engine. In this "on" position, all the electronics (including the gauges) will function. As the engine IS NOT running, a good sensor (and gauge) should read 0. With the engine NOT RUNNING, a bed sensor WILL give you a pressure reading. If it is the sensor, it's OK to drive.

PS - It is a $40 part and not too difficult to replace (no, you can not repair it). The challenge is that the sensor is behind the intake manifold. You have to move the manifold out a little to get to the sensor. Dealers quote about 1.5-2 hours labor but WILL stick you with a REALLY BIG BILL. Some folks have reported quotes of $450 to replace this $40 part. BEWARE!

 

[bob kissinger]

Thanks for the quick reply, I'll check it out using your excellent 'quick trick' below and go from there. Thank god I have an extended warranty.
Now what if the gauge shows 0 psi with the engine off and 130 psi with the engine on :crazy ?

I see you have an extended warranty. If you see 0 off and 130 on, get it in for service, you have a major problem! (Note: I assume that you have checked the dip stick and you have the right amount of oil in it, not WAY over-filled).

My money is on the sensor!