6.4 engine swap no start

Yan7gin · May 15, 2016

yes oil level is good, just change the oil. I started removing the rad's again and remove the pump. I still have the other engine so will swap it. hope that where the no rev and knocking come from.

I can put the skinny pedal to the floor and will rev up slowly up to the 1700-1800 rpm and starf a knock each sec at this rpm. other thing i saw is the boost gauge isn't moving at all

6.0 Tech · May 15, 2016

You may have two different issues, but i would be really worried about the no oil pressure before i go chasing a possible rev issue. I dont think the 6.4 goes into a derate from no oil pressure, but no oil pressure could cause other things to not work like turbos and whatnot which would cause a no rev.

Yan7gin · May 15, 2016

kk, starting to lose hope, will be away next week for training and 3 week after i have to move...

will try to check the flow next weekend when im back, i'm more concern about the knocking than the oil problem

Yan7gin · May 15, 2016

6.0 Tech said:
Neither is real common, but pull out the oil pressure regulator, the 12mm allen head underneath behind the damper, and crank it without starting. See if you have any oil coming out of there. I am assuming you double checked oil level first right?...

I took out what I thought it was the oil pressure regulator yesterday same location but it was a 30mm plug. No oil was coming out when cranking

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6.0 Tech · May 15, 2016

Chit sorry,yeah the 6.4s are hex, not allen. My bad bud. If there is no oil coming out, then its possible th pump is junk. I would be leaning towards the pump instead of the pick up, as a pump would be more common than a pick up.

Yan7gin · May 15, 2016

Already started to tear down rads for access. Away for the week so next weekend episode

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6.0 Tech · May 15, 2016

Well good luck when you get back on it man.

Yan7gin · May 21, 2016

kk got the oil pump out today and nothing wrong with it, and it better shape than the one from the other engine. Still no oil. pulled the hex plug with the bypass valve on the pump, crank and no oil. i guess the other option is the oil pick up tube? any other idea?

Yan7gin · May 22, 2016

oil pick up tube is not connected, will have to raise the engine tomorrow and see if its missing or fail off.

hope that will also solve the "tapping" problem. It's not knocking and 99% sure that its not piston or rod. engine was idling finr no weird noise but around 1700-1800 rpm ad a tapping/clunking noise (about 1/sec)

6.0 Tech · May 22, 2016

Well hell, how did it fall off? Or was the motor screwed with before you bought it?

Yan7gin · May 22, 2016

no real idea, got the motor from a guy who brought the truck from hydro company.... doen't look like the pan was removed but I might be wrong.

6.0 Tech · May 22, 2016

Hope it works out and nothin wa hurt man. Good luck.

Yan7gin · May 22, 2016

So guess i was getting tired yesterday with the flashlight because I removed the pan and the oil pickUp is well in place..... Still can't get any oil going through the pump. Still looking for the problem. Wonder if the problem is not at the filter housing or cooler? Anyway to prime the system?

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6.0 Tech · May 22, 2016

Not tgat im aware of. It feeds oil pretty damn quick cranking. Pull the pickup off and make sure the o ring is in yhere and not torn.

Yan7gin · May 23, 2016

I removed the pickup and nothing wrong with it, still swap it for the other one i had. swap the oil pump for the other one just incase and no change. can't get the oil going through the LPOP.

Next step, truck on the trailer going to the new house, engine will come out and put apart to check every single part of it before going back in, rebuilt if need be.

6.0 Tech · May 23, 2016

Try adding 5qts for a total of 20. Jack up the ass end so the wheels are off the ground about 6 inches, see if anything changs.

Yan7gin · May 23, 2016

Ya i can give this a shot, easy enough to do

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Yan7gin · Jul 17, 2016

ok, sorry for this long delay but just got the time to work on that truck today. Good news is I add more oil and raised the back of the truck and BOOM now system is prime and engine sound and run good. I put everything back together and no code, run good.

the only thing now is, the relay under both seat are clicking and also the gray one in the fuse box witch is the #53. they start clicking when key on and still click when engine running...... any idea on this?

Yan7gin · Jul 17, 2016

ok relay 1 and 3 are clicking, relay under driver and passager seat and may be 1 or 2 under the dash. they start clicking soon as I turn the key to on position and doesn't stop. the 5 button under the climate control also doesn't work (A/C, heated seat, defrost, ...)