What kind of sound does the worn tensioner make. There is a faint noise coming from under the alternator coming from my 4.6, it has 196,000 on it.
The alt, water pump, and the tensioner on the serpentine has already been replaced.
It has a light dryish sounding, scraping noise. It is a faint sound, but I have considered that the timing tensioner on the 1 to 4 side of the engine, is where the noise is coming from.

 

It usually sounds like a really loud lifter(if it is losing oil press). The tensioner is just above the AC compressor on the pass side and just below and to the right of the alt on the driver's side. The tensioners can also lock up causing the chains to rub through the guides making a scraping noise. Only way to tell for sure is to remove the front cover to look.

 

I havent quite figured out if that is where the sound is coming from. But it is very faint. A light rubbing sound is the best way to describe it.

Thanks for the reply.

 

My truck only has 46K is it possible for them to bleed down over nite, I have the 1-3 sec. rattle on cold start and it is on the drivers side, do u iknow if they would have looked at them when I had the cam phasers and lash adjusters done, I can't remember if that was part of the same TSB????

 

Black, that is considered normal on Ford's end. Make sure the proper oil and Motorcraft filter is used. Ford will not stand behind something that hasn't had the proper oil changes, or wrong filters installed. Remember, these engines rely entirely on oil pressure to operate properly. If you miss oil changes, the engine will sludge up, and not allow proper oil flow.

 

Bronc: I am **** on maint. oil every 3k or 3mo. 5/20 MC syn blend and MCFL-820S filter, one last question when u change oil on these engines thr first start it makes an awful knocking until oil pressure is up and it is coming from filter area have u experienced this at all is the first ford I have ever heard make this noise on an oil change???

 

Re-run question for big bronc u must be busy

 

I have an '07 5.4 and I cannot get the old solenoid out of top of valve cover. The small flange on solenoid is hanging up on the seal seat. There doesnt appear to be enough clearnace to remove it. Any suggestions? Thanks,