Question about 2001 Ford Explorer Sport

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01 explorer timing chains

I came across your response to someone else's issues with a 4l SOHC v6. You said send them their E-mail and you would provide the TSBs and whatnot describing replacing the timing chains. A friend of mine has one that is noisy and she doesn't have a lot of money to have the shop do it for her (cheapest parts I found was 450 without a new shaft). I am not real excited about doing this procedure, but I am sure I am capable as I have done a lot of serious car servicing.
A few questions, does the engine have to come out? (my guess is yes) Is this something that will inevitably cause a failure (I understand it is an interference motor) within a few thousand miles after it starts making noise? and could you send the pertinent info to my E-mail
Your help is greatly appreciated
Ken Thompson

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  • nichusch Nov 22, 2008

    From what I understand in about 3 hrs of research Ford decided it would be in their best interest to adapt a pushrod v6 block to overhead cams via a shaft replacing the camshaft through the center of the engine. Placing chains(renamed cassettes for this app) on each end of the block allows them to use the same head for each side of the engine.
    You must have a chain or belt with teeth on it to maintain timing between valves and pistons on an overhead cam engine, or really any engine with standard valves, you just probably can't see it under the accessory mounting bracket(s).


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I may be comming off totally half cocked but on my Ford Explorer Sport I don't believe there are any "Timing Chains" on this vehicle. I just have a Serpentine belt that ties / runs everything together. My "older" vehicles had timing chains to where I pulled the grille, radiator out to gain access to the front of the block.
Funny thing is.......I had more of a headache replacing the spak plugs on my Explorer Sport than the Serpentine Belt. (Go Figure)

Posted on Nov 22, 2008

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