I had an 05 fx4 and it had the cam phasers replaced 2 times in 60k and the truck still knocked like a diesel.. What oil and filter i run is wix filters and pennzoil plat 5w20. If i still had a 5.4 3v i would look into the cam phaser lockouts. My plan of action to eliminate the cam phaser noise was to get a 97-03 f150. Now i dont have to worry about them dang phasers. Ps i talked to the guy that bought my 05 and the engine had to be replaced at 100k. good luck

 

Mine has always sounded like a deisel, I really need to replace them simply becuase I cant stand the noise. lmao

I'll probably make a video of the whole process and upload it to my site when I'm done.

 

my engine sounds like a diesel at idle. It seems to get quieter right after an OC, but it comes back. 5w20 and MC filters since I've had the truck.

 

No 'ultimate' Cam Phaser discussion thread is EVER going to be complete without a Link to Steve Bassen's Legendary 'How-To' on the subject:

https://www.f150online.com/forums/ar...placement.html




Carry on

MC 5w-20 semi-synth & MC FL820-S, no rude noises after 6 years... but I'm lining up my ducks just in case Solenoids first.


MGD

 

Wow he really put some time into that write up. Very detailed with lots of pics. Thanks for the link MGD as that was posted way before my time here and I am one of those guys that doesn't use the search feature, you know the people that everyone loves to nag lol

 

No problem, buddy. Honesty is always a Good thing!

Y'all need to find anythang, jes ask ol' Bubba

A LOT of other great stuff in here that you need not Search for: https://www.f150online.com/forums/articles-how-tos-119/

Yep - ol' Steve B's How-To is one of the Standard-Bearers in my book, along with Fairlaner's articles, SSCULLY's and several others. Man - the stuff is Priceless.

Anyway - have a great weekend, sir!


MGD

 

Dealers love noisy cam phasers. $$$

 

Dealers dont just love noisy cam phasers stealth, they love anyone who doesnt own a wrench and cannot put their own air in their tires. Thats how they make money.

 

I have a 07 with a motor built from 7-30-06. Changed my oil with motor craft every 3,000 Miles's. Idgf, I have no noises and plan to keep it that way.

 

What I'm getting at and I've said it for years is cam phasers are noisy by design and I find it hilarious that people get so bent out of shape about it.

 

^ yup. thats what the mechanic at my dealership said. They are inherantly noisy.. They can replace them, but he was like, I wouldnt waste the money unless they ABSOULTLY HAVE TO BE REPLACED. which mine do not. they are just starting to get noisy... i think most of my noise is the clicking from the injectors anyways. And i like it when people ask me if i have a diesel f150 lol

 

oil weight has alot to do with it....5.4 is a very tight tolerance motor....if oil weight has nothing to do with it put 20 w 40 in and tell me how it likes it

 

I have, and it worked fine. I have no noise what so ever. 126k mi. I don't need to justify my opinion, but I will. I have multiple friends running 15w50 in their 800hp gt500 and 03-04 cobras. Not the exact engine, but very similar. All the abuse those engines take with wot 18-21lbs of boost and road racing/ drag strip. No issues what so ever. The only draw back is fuel mileage and at that level, with top quality internal parts and closer tolerances than our stock engines are held to, it doesn't really matter.

Another example. The new 5.0 mustangs. They have cam phasers too. 5w50 is the suggested weight. Just like stock gt500s

People can use whatever oil they want. I won't use 5w20 in any of my engines. Why? Because it doesn't offer the level of protection a 10-30 or thicker offers. Dont take my word for it. Please do your own research. Also do a search for c.a.f.e. laws wile you are at it.

 

Does this only apply to the 5.4L? Does the 4.6 have cam phasers?

 

Diesel noise from these engines is not always the CAM Phaser. Lash adjuster combine with a loose timing chain tensioner (and/or broken guide/Rail) will make you think you need to change the CAM Phaser. But really you need to replace the timing chain tensioner (blown gasket) or timing chain guide and/or rail along with the timing chain. Which when bad ... causes timing chain slap noise. You can tell if the timing chain guide/rail is broken by taking off your oil pan and looking up behind the crankshaft ignition pulse wheel. Most times you will see of piece of it laying right by the crankshaft.

One more thing about using 5w-20 oil .... this thin oil does not cool as well as thicker oils. Once you have taken one of these motors apart you too will be able to testify how the engine ran too hot by the signs from the pistons and out-of-round cylinders.

I know ... because I have read many a threads by many of people with the same old advice "Change the CAM Phaser" ...

I am in the processor right now of rebuilding this engine and I am here to tell you ... it is not always the CAM Phasers.

Just my two cents!

By the way ... these are not cheap engines to rebuild if you choose to do the job better than a Ford Crate Motor reman!

Just as an example ... at least one of my main crankshaft holes had .001" taper in it stock from the factory. Not good when you have only .0009" oil clearance over a width of less than an inch on these mains. You really need to start with a round straight hole to put the main bearings into. Or right off the assembly line you have a main bearing starving for oil on half its bearing.