What year did Ford Fix the Timning Chain Rattle? - Ranger-Forums - The Ultimate Ford Ranger Resource


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

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Old 03-13-2007
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What year did Ford Fix the Timning Chain Rattle?

What year did Ford Fix the Timning Chain Rattle?
I need to put a junkyard motor in my 01 Ranger. I want to know what years to look for
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Old 03-13-2007
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2003

but they did fix some earlier trucks under a recall
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Old 03-13-2007
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so there was a recall for this???

cause i took my 02 and they didnt say anything about that
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Old 03-13-2007
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GOOD GAWD-----IT'S A EPIDEMIC!!! Just had to replace mine for that same problem. Tensioner seized up and the chain was rattling and grinding against it. Had my mechanic just put in an '03 engine and he told me it runs like a top! Watch the VIN letter to make sure it matches.
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Old 03-13-2007
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um, ford actually DID NOT fix this issue, since mine is an 04, and mine rattles.
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Old 03-13-2007
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mine doesnt...its an 03
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Old 03-13-2007
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neither of my 03's did. one had 28k and the other had 54k
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Old 03-13-2007
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Quote:
Originally Posted by FMD
um, ford actually DID NOT fix this issue, since mine is an 04, and mine rattles.

you dont know what you are hearing.

who really cares if it makes noise. have you ever had anyone say it broke? maybe 2 or 3 people...
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Old 03-14-2007
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around 03. my 03 was built in nov 02 now with 45k miles and no rattle yet. I've driven a used 02 with ~25k miles It had the timing chain rattle. I have yet to hear of any that have actually broke and destroyed the engine.
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Old 03-14-2007
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Heres my personal motto if isnt broke dont fix it.. my timing chain rattles but i could care less it isnt hurting the engine so why fawk with it?
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Old 03-15-2007
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Quote:
Originally Posted by FMD
um, ford actually DID NOT fix this issue, since mine is an 04, and mine rattles.

I have 82,000 miles on my 03 and for the last 5k or so I have noticed it, ****ers.
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Old 03-16-2007
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This problem does not happen to all 4.0 SOHC engines. It was more of a problem in 01 but it also happened to some 02 engines. Mine has over 70,000 miles on it and I have never gotten a single rattle out of the timing chain. It seems if an engine has the problem, it is difficult to fix. If it does not have the problem at low mileage it is usually good to go for many miles.
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Old 03-16-2007
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mine has had the rattle since about 10,000 miles or so. whined to the dealer, they said it was normal. come to find out, to change that chain is a HUGE job, u gotta pull the engine.
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Old 03-16-2007
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Is this only a problem in SOHC and not OHV. I ask because i have a sort of rattle on startup but I have a OHV.
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Old 03-16-2007
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Here's the condition I had on my pre-owned '01 Ranger. The extended warranty folks paid for the repair, minus my deductible. Hope it helps.

Engine - Timing Chain Rattle Noise

TSB 04-15-4

08/09/04

RATTLE NOISE FROM PRIMARY CHAIN DRIVE AREA
2000-3000 RPM - 4.0L SOHC ENGINE

FORD:
1999-2002 Explorer
2001-2002 Explorer Sport Trac,
Explorer Sport, Ranger

MERCURY:
1999-2002 Mountaineer

This article supersedes TSB 02-08-01 to update part numbers and add a labor operation for vehicles with auxiliary air conditioning.

ISSUE

Some vehicles equipped with the 4.0 SOHC (single over-head cam) engine may exhibit a primary timing chain rattle noise. The noise is heard during hot and cold engine operation (but mainly heard on cold engines) under acceleration, typically at 2400-2500 RPM. To verify concern, accelerate in 2nd gear between 2000 and 3000 RPM and listen for rattle noise that sounds similar to spark knock. This may be caused by the primary timing chain tensioner system.

ACTION

Replace the Primary Timing Chain Tensioner, Chain Guide, Jackshaft and Crankshaft Sprockets with a Primary Timing Chain Tensioner Kit. The Kit includes an improved Primary Chain Tensioner, as well as updated Primary Chain Guide, Primary Jackshaft, and Crankshaft Sprockets. Required fasteners, Primary Timing Chain, and Front Cover Gaskets are also included. Refer to the following Service Procedure for details.

SERVICE PROCEDURE

Verify the condition. Obtain the correct Primary Timing Chain Tensioner Kit and follow the instruction sheet supplied with the Kit.

Use Kit 2U3Z-6D256-CA (balance shaft engines)

for:

^ 1999-2001 4X4 Explorer/Mountaineer

^ 2001-2002 4X4 Sport/Sport Trac

^ ALL 2002 Explorer/Mountaineer, except engine codes 2G-960-AA and 2G-964-AA.


Use Kit P/N 2U3Z-6D256-DA (non balance shaft engines) for:

^ 1999-2001 4X2 Explorer/Mountaineer

^ 2001-2002 4X2 Sport/Sport Trac

^ 2002 MY Explorer/Mountaineer with engine codes 2G-960-AA and 2G-964-AA

^ ALL 2001-2002 Ranger






Labor Operation Claiming Chart





Parts Block

OTHER APPLICABLE ARTICLES: NONE

WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage

DEALER CODING
CONDITION
BASIC PART NO. CODE
6D256 42
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