Ford 4.0 SOHC chain noise
I know this is a frequent problem with explorers and rangers, I replaced the chain guides in my exploter last year and now a noise is starting again, it happens when the motor is started no matterf if cold or warm, it rattles a lot most of the times when I accelerate it dissapers, others it sounds randomly, yesterday when I pulled in the gas station, the attendand almost put diesel in the tank, he said because of the noise he tougth it was diesel powered.
I haven't found pieces of plastic in the oil like was last time, so I don't think the tensioners broke again.
I read somewhere that an oil restrictor for a passage in the head had to be installed but not sure what's it about.
I'm using 20W50, the engine has a little over 100.000 miles on the clock, it pulls great and uses no oil between 3.200 miles change intervals.
do you think that using a different oil could make the noise stop? or is there another solution?