High Oil Pressure - The 1947 - Present Chevrolet & GMC Truck Message Board Network

c0reDump · 01-11-2009, 03:25 PM

Hey guys, first post -- great forum!

I recently acquired a 71 Chevy Fleetside. The oil pressure gauge always reads High (needle on the H). On cold starts and idling, and when driving. The only time the gauge is not on H is after driving for a while and idling at a stop-light, then the oil-pressure gauge is sitting dead middle.

Is this normal? Is it bad to have too-high oil pressure?

Thanks.

**El Jay** · 01-11-2009, 03:34 PM

Personally, I wouldn't worry about it.

MY GMC runs 1 needle width off the "H" all day long. At hot idle, it may drop down to 3/4 gauge.
After a cold start, my Chevy runs 60#+

Oh, yeah, welcome to the board.

Longhorn Man · 01-11-2009, 03:50 PM

H on high is only 60 PSI.
You don't have anything to be worried about.
And also... welcome to the board from central ohio

Bus Ted Knuckle · 01-11-2009, 03:51 PM

Lucky you!

Seriously, nothing to worry about, possibly your gauge or sender are not exactly reading right, or perhaps your main and rod bearings are in really good shape.

texanidiot25 · 01-11-2009, 07:13 PM

My gauge usually maxes out, so don't worry about it.

Welcome!

Wilson_ · 01-11-2009, 07:25 PM

I wish i had that much.

30 on a cold start up and 20 at idle and 30 at freeway speeds

drewdude92 · 01-11-2009, 07:49 PM

umm mine is about 30 on start up then when i get warmed up it drops down to about 5? is that a bad thing? i dont drive this truck much but you can rev it up and the pressure will go back up to 30ish

100%Chevy · 01-11-2009, 09:19 PM

I've an 82,454 that has always run at 60 psi until I shut it off.
My original 68 only shows 30/35 when cold and less when warmed up.
Neither seems to be a problem.
Mike.

*Cunit69* · 01-11-2009, 09:25 PM

The more the better. Your engine might have been rebuilt with a high volume oil pump that would be my guess.

AlienYouth · 01-11-2009, 09:53 PM

i've got a hi volume hi pressure oil pump, when warming up, the needle isn't even visible

**WorkinLonghorn** · 01-11-2009, 10:14 PM

What weight oil are you running?
I agree, don't worry.\ and welcome from sunny (80+) Calif.

*Cunit69* · 01-12-2009, 08:33 AM

You must be out of oil then, my pegs the gauge.

**70cst** · 01-12-2009, 08:47 AM

You just can't beat an accurate Chevy factory guage.

01-11-2009, 03:25 PM	#1
c0reDump Registered User Join Date: Jan 2009 Location: Round Rock, TX Posts: 3	High Oil Pressure Hey guys, first post -- great forum! I recently acquired a 71 Chevy Fleetside. The oil pressure gauge always reads High (needle on the H). On cold starts and idling, and when driving. The only time the gauge is not on H is after driving for a while and idling at a stop-light, then the oil-pressure gauge is sitting dead middle. Is this normal? Is it bad to have too-high oil pressure? Thanks.

01-11-2009, 03:34 PM	#2
El Jay Gone to greener pastures Join Date: May 2007 Location: Gateway to the Delta Posts: 7,354	Re: High Oil Pressure Personally, I wouldn't worry about it. MY GMC runs 1 needle width off the "H" all day long. At hot idle, it may drop down to 3/4 gauge. After a cold start, my Chevy runs 60#+ Oh, yeah, welcome to the board. __________________ '69 Chevy 1/2 T LWB Stepper: Daily Beater '72 GMC 3/4 T Fleet: Another Daily Beater '72 Plymouth Gran Coupe: ? "Ah women. They make the highs higher and the lows more frequent." Friedrich Nietzsche "Never kick a fresh turd on a hot day." Harry S. Truman GUN CONTROL: Never having to say, "I missed you." Always fire two warning shots into your attacker's chest area before putting a bullet between his eyes. Paraphrased from Louis Awerbuck Last edited by El Jay; 01-11-2009 at 03:35 PM.

01-11-2009, 03:50 PM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: High Oil Pressure H on high is only 60 PSI. You don't have anything to be worried about. And also... welcome to the board from central ohio

01-11-2009, 03:51 PM	#4
Bus Ted Knuckle Son of a gun Join Date: Jan 2007 Location: Hot Springs, Arkansas Posts: 1,636	Re: High Oil Pressure Lucky you! Seriously, nothing to worry about, possibly your gauge or sender are not exactly reading right, or perhaps your main and rod bearings are in really good shape. __________________ Bill BEATERS ARE NEATER

01-11-2009, 07:13 PM	#5
texanidiot25 Eat My Rust Join Date: Jan 2007 Location: Cypress, Texas Posts: 3,362	Re: High Oil Pressure My gauge usually maxes out, so don't worry about it. Welcome!

01-11-2009, 07:25 PM	#6
Wilson_ Registered User Join Date: Sep 2008 Location: Santa Rosa, CA Posts: 451	Re: High Oil Pressure I wish i had that much. 30 on a cold start up and 20 at idle and 30 at freeway speeds __________________ Northern California Group Met list: Cyclone, KCJones, TranzAm, extd56, hotrodhomi, mnky30, Rokcrln, Brad, JerryJones, Petey-pablo, 72Subby

01-11-2009, 07:49 PM	#7
drewdude92 72 chevys 4 life Join Date: Aug 2008 Location: Crescent,Ok Posts: 406	Re: High Oil Pressure umm mine is about 30 on start up then when i get warmed up it drops down to about 5? is that a bad thing? i dont drive this truck much but you can rev it up and the pressure will go back up to 30ish __________________ I dont call it being young and dumb....I call it young and havin fun

01-11-2009, 09:19 PM	#8
100%Chevy Registered User Join Date: Jun 2008 Location: Moss Point,Ms. Posts: 1,439	Re: High Oil Pressure I've an 82,454 that has always run at 60 psi until I shut it off. My original 68 only shows 30/35 when cold and less when warmed up. Neither seems to be a problem. Mike.

01-11-2009, 09:25 PM	#9
Cunit69 Account Suspended Join Date: Nov 2008 Location: Burnet Texas Posts: 121	Re: High Oil Pressure The more the better. Your engine might have been rebuilt with a high volume oil pump that would be my guess.

01-11-2009, 09:53 PM	#10
AlienYouth Registered User Join Date: Apr 2007 Location: Westminster, Maryland Posts: 411	Re: High Oil Pressure i've got a hi volume hi pressure oil pump, when warming up, the needle isn't even visible __________________ Picturesss 71 C10 383/TH400 13.65 @ 99... 2.06 60' spinnin :/

01-11-2009, 10:14 PM	#11
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,886	Re: High Oil Pressure What weight oil are you running? I agree, don't worry.\ and welcome from sunny (80+) Calif. __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme.

01-12-2009, 08:33 AM	#12
Cunit69 Account Suspended Join Date: Nov 2008 Location: Burnet Texas Posts: 121	Re: High Oil Pressure You must be out of oil then, my pegs the gauge.

01-12-2009, 08:47 AM	#13
70cst Senior Member Join Date: Feb 2001 Location: New Madison, Ohio Posts: 21,373	Re: High Oil Pressure You just can't beat an accurate Chevy factory guage. __________________ A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder!

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