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  1. T

    tahoe no oil pressure

    I'll try it but I am most positive that that o ring is seated right
  2. T

    tahoe no oil pressure

    I can try that. We have changed and checked that oring 5 times now though. Every time we did it it looks good when we take it out. Looks like another pull pan gasket and oil if that's the problem
  3. T

    tahoe no oil pressure

    I used the green o ring which is the right one and this is the high volume oil pump like i said if I Rev it up to 3000rpm it does go to 20psi but when I let off the accelerator it drops to 0
  4. T

    tahoe no oil pressure

    Yes it has a warranty. Just gotta take it all back out and ship it back and wait to get another one. But it dies start and run can't hear any pinging or anything
  5. T

    tahoe no oil pressure

    I have a2013 chevy tahoe with a5.3ls motor. Blew the engine so I bought a used one online with a warranty. We put a new oil pan without the relief valve in it. New oil filter, new pick up tube with o ring, new high volume oil pump new screen and oil pressure sensor and new vlom. Wet hooked up a...
  6. T

    tahoe no oil pressure

    Also did pull the valve covers and all the lifters and push rods appear to be OK
  7. T

    tahoe no oil pressure

    I was just told to try changing the filter. We have an acdelco filter in it now. I was thinking of changing the filter and doing an engine flush then draining it and changing the filter and oil again
  8. T

    tahoe no oil pressure

    I never turned it over before priming the new pump.
  9. T

    tahoe no oil pressure

    So new oil pump new ouch up tube with o ring new screen mechanical Guage still no oil pressure at the top of the motor did get 20 psi after I started it and revved it up to 3000rpm but when I let off the accelerator it drops to 0. I cannot figure this out also put in a new vlom
  10. T

    tahoe no oil pressure

    We have a mechanical Guage on it and replaced the screen as well. Still nothing. I did start it finally after cranking it over and over and over and revved it up to 3000rpm and Guage shot up to 20psi for a second then when I let off the accelerator it drops to 0.
  11. T

    tahoe no oil pressure

    We did all of that. still nothing. It's for me confused
  12. T

    tahoe no oil pressure

    I have a2013 tahoe 5.3 ls engine. blew it up. bought a used engine put a new timing chain, oil pump, pick up tube etc etc. My son put it all on and dropped the engine in. Problem is we cannot get any oil pressure. We filed it with oil and also tried filling the oil pump from the port on the...
  13. T

    tahoe no oil pressure

    alright I'm keep my fingers crossed
  14. T

    tahoe no oil pressure

    After I fill the oil pump with oil from the side port how should I proceed with continuing the prime and I am going to remove the oil pressure sensor and put an oil pressure test Guage on it after I do that and remove the Guage will I have to reprime the engine
  15. T

    tahoe no oil pressure

  16. T

    tahoe no oil pressure

    I saw a video on that but what do I do after I fill that with oil
  17. T

    tahoe no oil pressure

    how do you prime the oil pump
  18. T

    tahoe no oil pressure

    is there a certain way to get it to prime
  19. T

    tahoe no oil pressure

    WE STARTED TO JUST CRANK IT OVER WITHOUT IT FIRING. then started it and no oil pressure. How am I supposed to prime it. We cranked it over quite a few times without it firing to try to prove it. Is there a certain way to get it to prove
  20. T

    tahoe no oil pressure

    Yes we purchased a used engine from a salvage yard that ships used engines daily. We installed a new oil pump, oil pick up tube, filter, oil , oil sensor, checked the screen on the oil pressure sensor and the wiring and still no oil pressure. Bought a oil pressure test kit today and going to...
  21. T

    tahoe no oil pressure

    I purchased a used engine from a auto salvage yard that said it was in good working order when they took it out. They ship used engines daily. We installed a new oil pump when we installed the engine And a new pick up tube oil and oil filter oil pressure sensor is new and all wires are connected.
  22. T

    tahoe no oil pressure

    I have a2013 chevy tahoe 5.3 blew the engine. purchased a used engine or it in stayed it up and no oil pressure on the guage.I dint want to blow this engine up what do I do??

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