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Timing Chains

(2007 Ford Explorer Sport Trac)
in Coleman, GA on April 14, 2011
Took my Sport Trac in because of problems with transmission (just had it rebuilt), now they have torn the engine down, and are saying it will cost more than the truck is worth to fix, as it has 3 timing chains, and they will have to be replaced! Does this sound even remotely right?
Displaying 2 answers & 2 comments
Popular Answer
on April 14, 2011
The chains on a 2007 engine really should not be "needed". Issues with this engine and the chains, guides and tensioners were experienced in the late 90's, but by 2007 had long since been resolved.

Hard to diagnose something specifically like this without seeing it, though, of course.
on February 21, 2013
I think not. I have a 2007 with 102,000 km and noticed a ticking sound coming from engine. Thought it was a lifter, got the oil changed and sound did not go away. Took to the garage and was told the cassette was worn out after they took off the valve cover and manifold. Said to replace it would cost around $3000.00 dollars, and to replace with a motor with less kms would cost me $4,300.00. To put plastic guides or cassettes as they called is friken ludirious. Not a big ford fan anymore. Maybe time to sell my mustang too.
Yes, 4.0 E code engines do have several timing chains, guides, and tensioners. One of the chains, that run the passenger side cam requires the engine to be removed to replace it. However because of the high cost of these components they are usually replaced as needed and sold seperatly. Used engine will be cheaper to replace then to have your rebuilt.
on April 15, 2011
We have had this truck four years...have replaced the transmission twice, just had the water pump replaced, and now this! I just wanted to make sure the mechanic wasn't taking us "for a ride". There weren't any problems with the truck running rough, or any indication that the timing was off....only a little slow to change gears.
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