How do you prime a oil pump in a 6.2 gas motor in a 04 gmc pkup

Did the oil pressure get checked with another guage before replacing oil pump? The oil pressure sensor is a commom failure on these engines but the lifters making noise seem to verify the lack af pressure.

Have you carried out any repair as yet? why do you need torque setting for cam caps

How do you know that you have Low Oil Pressure?

Are you trusting the Gauge or putting an In-Line Gauge?

YOUR GM GAUGE CLUSTER is known to have BAD or DEFECTIVE STEPPER MOTORS...

If you put the In-line Gauge on and see that you have Good Pressure, then what you need to do is rebuild your Instrument Cluster.

MAKE SURE YOU USE X27.168 Stepper Motors... The Cheaper CHINEESE STEPPER MOTORS are black and are defective.

The X27.168 Stepper Motors are WHITE and will last for as long as you own the Truck.

Order 6 Stepper Motors and do them ALL at the same time or you can pay someone $95-$200 to rebuild it for you...

You have to prime the oil pump using a special tool... it goes down the distributer hole yes, you have to remove it.. make sure you mark it carefully!!!!!!!!!..
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most pumps are in oil pan. remove oil pan and it is attached to under side of engine. remove the boltson oil pump, and thars it. be sure to clean mateing surfaces up good.

I am wondering about what I am reading above about your question. Did you replace a oil pump & lifters or only just the lifters? If you did replace the oil punp it must be packed full of Vaseline so it will prime. If not you will not get any oil pressure at all

Nope, normal on start up is 60 PSI and once warmed up drops to 45 psi. Have the oil pressure checked for a proper reading during start up's when the engine is cold. As for the lifters ticking, that may be a sign that the engine was ran with low oil pressure or no oil and the lifters are damaged, or low oil pressure and the lifters are starved of oil. Try not to drive it and have a proper oil pressure reading, low oil pressure will damage the engine by having the main crank bearing to spin which is a engine replacement. Good luck and keep me posted.

I doubt it....It could be a totally worn out engine.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

before trying too much the lifters will sometimes bleed off some of the prime they have. first try putting in a pint of marvel mystery oil. if that doesn't fix it run an oil pressure test to see if you need a new pump or new lifters

CHECK THE OIL PUMP SUMP TUBE O-RING. THEY COLLAPSE CAUSING THE OIL PUMP TO PULL AIR INSTEAD OF OIL. TO VERIFY OVER FILL ENGINE OIL AND CHECK ENGINE OIL PRESSURE. THIS IS A COMMON PROBLEM ON ALL NEWER GM V-8 ENGINES : 4.8 5.3 5.7 6.0