I have a 2010 4.6L and never tried the gas pedal start up bc I was scared it would start wide open. Glad you included that in the video.

I wish that you did all of the videos on KZread. Very good video very informative I do appreciate it. There is information there that a guy needs to know. Thank you

Thank you for a clear and comprehensive post. I wanted to mention its not just about pressure but also volume. So if the oil galleries have accumulated crud, as might happen when a 5.4 is sold from a fleet or owner where maintenance has been poor, perhaps a flush may be necessary. A mechanic with a lot of 5.4 experience just told me the head galleries are designed too small and require flushing from "time to time" with 1 qt. of transmission fluid. I'm reflecting on that.

Very informative and professional explanation and visuals. I am some day going to replace my timing chains and lock out the phasers. I like this idea far better than connecting to the sending unit tap. Thank you!!!

@thebestengines1413

2 жыл бұрын

Thanks - just recently found out some of the older 5.4 L Triton engines with AT have the dipstick tube blocking easy access to that oil galley plug. Somethings to consider when attempting this install - as the newer trucks have a short screw in/out plug with a fluid level indicator inside of it ( instead of the long dipstick).

thank you for your time on this. very helpful with that oil galley! nice work.

Wow good thinking with the foot to the floor, I’m definitely gonna do that if I get a start up rattle

Planning on putting an oil pressure gauge on the top end of my 5.4L 2v. was just seeing if anyone had posted doing this before. Thanks for posting this.

@thebestengines1413

Жыл бұрын

I couldn’t find anything- that’s why I posted this one to show another gauge connection option . You should post yours and be the 1st for a 2 valve👍🏻

I have a 2005 lincoln navigator, like a year ago I replaced the tensioners, chain and a melling 360hv and occasionally I get the the raddle for half a second. Its tru what you said it depends where the camshaft stops putting pressure on the tensioners collapsing it.

On my 07 I have a hole in the fire wall right behind the gas pedal very easy to get too

Nice video. Thank you. Have you checked oil pressure at the stock sending unit location? Curious to know if it differs from the location you chose.

@thebestengines1413

Жыл бұрын

Thanks - access to that stock location was really tight because of the 4x4 unit. Never checked but think pressure could read slightly higher at the stock location if system were to develop any blockages further down the line or bleed off at the crank and rod bearings - the oil galley tap should indicate this with a lower pressure reading.

I see you have 2 adapters going into the cylinder head, Do you remember what sizes they were. If anything just the size of the hole in the cylinder head would be nice, course or fine thread

@thebestengines1413

Жыл бұрын

Thanks for the nice reply. Yes the gage kit came with 1/8" NPT gauge fitting and 1/8" and 1/4" NPT engine fittings.

outside of a remote bore scope camera to look at the tensioner, through a hole in the timing chain cover, the oil pressure gauge is at least a way to approximate a best guess about the condition of the oil system. While pressure and volume do not necessarily have a one to one relationship I am of the opinion that in this scenario you can rest assured that adequate volume is present in the left cylinder head. Running pressure of approx. 40 psi is what your gauge showed and that is PLENTY. That reading is more important than an idle oil pressure reading. I share your curiosity about the root cause of these failures. We hear only about the ones that fail....what about the likely tens of thousands of these engines that never have a problem. Is it how the engine is operated in temperature extremes, is it some additive in a certain brand of oil that causes the seal to decay? Something peculiar for sure but the bottom line is that the potential for tensioner oil leak is in my estimation THE NUMBER ONE flaw in the 5.4 triton...low oil delivery.... is what leads to phaser, chain, valve follower's and cam bearing failures and it is all traceable back to the leaks at the tensioner or lack of oil maintenance.

@thebestengines1413

2 жыл бұрын

Good points- that was partly the reason for posting this so if others decide to tap a gauge to that passenger head they can compare pressure to this known good stock engine/ pressure . Be nice if someone posted video of what you suggested - seal inspection with a bore scope .👍🏻

@garymcmullin2292

2 жыл бұрын

@@thebestengines1413 I looked at my 09 after reply and a bore scope hole, in the cover, would be difficult. But it looks like it might be possible to snake the scope down the oil filler spout to see the tensioner. Won't know till I try it, will have the risk that the bore scope wraps up in the rotating phaser when engine running. Got to thinking that a gauge off the oil filter boss would be an interesting comparison to the right side rear of the head...reveal any pressure differentials.

Which kind gauge did you buy? Is it a whole kit?

@thebestengines1413

Жыл бұрын

Bosch gauge kit from auto parts store. Came with everything but I purchased the copper line because the plastic tube that came with kit seemed flimsy.

Hey. I think I'm going to do this. I just paid to have the timing job done and thought it would be a shame to do all that work and not know I lost oil pressure. Is the view from your pic when flat on your back looking up at the rear passenger side of the block? I'm just not sure how you would be able to see that from underneath.

@thebestengines1413

7 ай бұрын

Yes the still pics are looking at it straight up - it was easier for me to reach through fender well to work on it while looking up at it. If your truck is older than 2009 think you will have other obstacles to deal with such as a dipstick tube on some earlier models- If you do install on pre 2009 post back your results as haven’t seen how others dealt with issues on older trucks

@anothersomebody8195

7 ай бұрын

​@@thebestengines1413 I ran across your forum post too, so I'm hoping to follow your lead. Thanks for the quick response! Hey, you don't know of a second coolant temp location do you?

@thebestengines1413

7 ай бұрын

No problem- and good deal as the best diagnostic tool for this 5.4 is monitoring oil pressure. Tapping that passenger side head really shows fluctuations in pressure. For example, watching with Forscan hooked up monitoring duty cycle controlling VCT operation the needle on the oil gauge will react in pressure readings the moment duty cycle commands VCT operation (when power breaking & upping / lowering RPM), cool to watch. Not sure if there's another location for temperature sending unit in that water jacket although I never looked. Good luck with project and post back your results.

@anothersomebody8195

7 ай бұрын

@@thebestengines1413 well... The dip stick tube is perfectly placed to block access from the fender. I could go above or below it, but mostly lost dexterity in the hand to be able to turn an allen key. I would need to unbolt the dip stick tube brace and see if it shifts out of the way. Might be time to buy a long impact wrench, or plug into the existing oil filter housing port and kill the instrument panel indicator. Thank you Ford -.- For reference, I'm 5'6" with small accountant arms.

@anothersomebody8195

7 ай бұрын

@@thebestengines1413 Hey, I just realized I i might be able to drill through the firewall as already planned and remove the plug from the cab side. Were you able to get a direct shot through the firewall, or does the dash and ducting get in the way?