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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 07-30-2012
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I am: George Rayk
Join Date: Jul 2012
Location: Brunswick
Vehicle: Ford Ranger
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4.0 timing chains

Front timing chains are noisy. Can i replace only front components or will rear chain fail also
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Old 07-30-2012
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I am: Matt Jellicorse
Join Date: Mar 2010
Location: KnoxVegas, TN
Vehicle: 1992 Ranger XLT
Drive Type: 4X4
Engine: 4.0
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What year is your truck? Like a 2001-2003?

My 01 has the timing chain rattle caused by the front two timing chains. However there is a timing chain in the back as well. And just recently (when cold) I have a rear timing chain noise as well.

But to answer your question, the fronts can be replaced kind of easily; however to my knowledge if the rear one ever fails the entire engine has to come out. Ford had a TSB out a while back and has since expired where they would replace the front timing chain components for free and did nothing to back timing chain.

I have been running my truck for 7 years (I bought it in 05 and now sits at 130 on the odo) and it's had the timing chain rattle ever since then and I have never had any problems. So I'd just run the engine until it the chain finally breaks/falls off then replace all three cause replacing the front timing chains is a lot easier done when the engine is out of the truck as well.

-2011 F-150 Lariat: 5.0 "Coyote" V8, 6-spd Auto (6R80E), 3.73 ELocker. White Platinum Metallic Tri-coat.
-1992 Ford Ranger: 4.0L OHV, 5spd (M5OD-R1), 3.27 Open.
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