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4.0 valve train

Danger.

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Hey guys, i just joined here hopefully you can help me out
I have a 93 ranger and i did my research and know they have lube issues in the top end, it all started in the winter it would make a quick 7 or 8 taps then it would be gone now my ranger makes a ungodly rattle when i am at high way speed (60+) and it gets put under load either accelerating or going up hill, i just wanted to make sure that i am on the right track and if anyone has used the delta cam package how it worked out, i seen on another site that a guys rocker arm blew apart. so any help is appericiated.
 


Hahnsb2

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Sounds like it's pinging. Valve train noise really doesn't change with load.
 

spraymonkey

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Ive heard that EGR issues can cause pinging, but that should pop a CEL.
 

Danger.

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well its not really a ping...there isn't really a way to describe it other than metal on metal slapping
 

Hahnsb2

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well its not really a ping...there isn't really a way to describe it other than metal on metal slapping
Pinging doesn't describe the sound, it's short for "pre-ignition". Ungodly rattle under load=pinging. If it goes away with higher octane gas it's pinging for sure.
 

Danger.

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well i feel like a idot.
 

daniel3507

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I havent had problems with the delta cam rockers and pushrods. Still have a little noise but I am pretty sure thats from the lifters and not the rocker arms or pushrods. I used to have a bad ping or rattle underload and on highway. Replaced the lower intake manifold gasket which helped a lot and then a new MAF stopped the little bit that was left. Try high octane gas or a basic tune up. New fuel filter, plugs, wires, clean the MAF etc.
 

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