Cam tensioners

[Mguildo]

They rattle at cold start can I keep driving for now or fix a s a p?

[NorthShoreChiMM]

Fix it asap, there could be plastic shavings in oil from the tensioners being slapped by the chains, things only get worse if you let it go further

[Mr. Man]

If the chains rattle for a second or two as the oil pressure builds up when you first start the car, then goes away, it's common and not a concern. If it is continuous after starting, get it looked at.

[johnjamis]

Use the Motorcraft oil filter. It will help retain oil in the journals to minimize the rattle.

[BAD MERC]

Use the Motorcraft oil filter. It will help retain oil in the journals to minimize the rattle.



I was thinking the same thing. A backflow valve on a quality filter may be the culprit. My Taurus rattled on cold startup with fleet filters. It stopped with a Motorcraft.

[Joe Walsh]

If you really don't like the cold start rattle especially with Ford's 'over-rev' on initial fire up:

https://www.enginelabs.com/news/canton-racing-what-is-an-accusump-and-how-does-it-work/


Accusump works like a charm.