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Oil pressure gauge?

Oil pressure gauge?

Postby wncsilverado [OP] » Feb 18 2012, 3:12pm

Just a quick question. This has been bugging me ever since I bought my new truck. It is a 2012 ltz with the 6.2. My old truck was a 08 5.3. My question is does everyone else's oil pressure gauge rise slowly when you crank your truck. My 5.3 would immediately shoot up as soon as it cranked. Pressure is good at about 60lbs cold idle and a little under 40 when fully warmed up idling.
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Re: Oil pressure gauge?

Postby EKinMN » Feb 18 2012, 3:23pm

Completely normal.
1. It does take a few seconds for pressure to build.
2. The gauge itself is not precise. I have noticed these gauges react with more of a fluid motion. I think it has to do with how they step them--more form than function.
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Oil pressure gauge?

Postby wncsilverado [OP] » Feb 18 2012, 4:24pm

I figured that was what it is. It just makes me wander how accurate the Gauge is.
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Re: Oil pressure gauge?

Postby adams99z71 » Feb 18 2012, 5:33pm

the electric oil pressure guage's are not that accurate. they give a great indication of good or bad oil pressure. if you had a mechanic guage hooked up, idle would read about 6-8psi not the 40(something) it says on the dash. at 4000rpm our trucks are really at around 16-18psi.
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Oil pressure gauge?

Postby wncsilverado [OP] » Feb 18 2012, 6:19pm

6-8 that seems extremely low. If any of my other vehicles dropped that low I would shut it down. My 78 with a mechanical gauge idles around 25 and driving stays around 35.
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Re: Oil pressure gauge?

Postby adams99z71 » Feb 18 2012, 6:38pm

yeah i agree it seems low but everyplace i look that has it listed says the same thing.
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Re: Oil pressure gauge?

Postby BuxCamper » Feb 19 2012, 3:39am

One of the computers is what really drives the guages so what you see is what it decides to tell you. Probably so people don't go running to the dealer for every little thing they think is wrong.
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