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Change timing chain tensioner

On a 2005 ford explorer 4.0 sohc can you use the same timing chain tensioner on the driver side as you do the pass.side or do you have to have the reservoir?

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Posted on Jan 02, 2017

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SOURCE: 1997 ford explorer 4.0 sohc how to set timing

There are no timing marks. Timing is done using special tools to hold the crank at top center and a tool to hold each camshaft in position. the cam sprockets are not pinned to the cams. there are also dummy tensioners installed to take up the slack till the tightening is done. Also there are chains at the back of the motor that can only be timed with the motor out of vehical.

Posted on Feb 21, 2009

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SOURCE: does 2005 ford expedition have a timing belt or chain?

v8s have timing chains

Posted on Feb 24, 2009

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SOURCE: 2001 Ford Explorer 4.0 SOHC no timing marks on cam or chain

get a haynes manual and look up camshaft replacement..its worth the 30 bucks

Posted on May 14, 2009

SOURCE: timing chain alignment

not true. SOHC 4.0 tensioner and rails fall apart, allowing the chain to slap and do damage, or even break. book it. in order to replace rioght side cam chain and tensioner, the engine MUST BE REMOVED! if it has balance shaft chain in oil pan, there are a total of four chains in this engine.

Posted on Jul 24, 2009

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SOURCE: 01 ford explorer sport trac rear timing chain diagram

They will not loan you the tools.....how else will they continue to rip off the average garage junkie and make lots of money?

Posted on Nov 18, 2009

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1 Answer

HOW TO CHANGE TIMING CHAIN TENSIONER


They don't tighten. They wear out and need replacement. They are not very expensive.

Oct 09, 2017 | 1999 Ford Explorer

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Where is the timing chain tensioner located on a 4.0 SOHC, 1998 Ford Explorer 2 door


The tensioner is located at the rear (right side) of motor. Jack the car up, remove right front wheel, remove the splash guard. Looking up, above the exhaust manifold near rear of motor you'll see a BLACK 25mm or 27mm bolt head....That's the tensioner.

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What is the cost to replace timing chain in 2002 ford explorer


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1 Answer

What can cause the timing chain to jump time on an 05 ford explorer


The 4.0l sohc v6 is notorious for breaking the plastic chain guides. You will need t remove the engine to repair it properly and there are lots of special tools required to properly time the vehicle. There are actually 4 timing chains and I suggest replacing all 4 and their respective guides and tensioners.

Jul 27, 2015 | Cars & Trucks

2 Answers

I just changed my oil in my 98 ford explorer and now i can hear a ticking sound coming for the passager side of the truck what could it be?


I asked because I had a suspension this was a 4.0 SOHC, have you had the recall done addresses the noise, it is caused inmost cases by leaking hydraulic cam chain automatic tensioners, they were recalled back in late 98, it is a free repair if it hasn't been done already. they are easy to change out. To find out if you need the recall visit your Ford dealer and have them run your VIN. I would also never use anything but the recommended oil. I double checked and your truck requires 5W-30W oil (not 5W-20W, my mistake), in this engine due to the way the hydraulic cam chain tensioners work I would not use 10W-30W, the thicker oil can cause slack in the cam chains and cause you the noise you discribed. I am 99% sure you have noise from a slack timing chain based on my 20 years at the Ford dealer.

Oct 28, 2011 | 1998 Ford Explorer

1 Answer

How do I change the Timing Chain close to the sidewall on the driver's side of the engine?


If thie engine in your explorer is the v6 4.0 I found this information online - You are not supposed to need to replace the timing chain(s) on a 4.0L SOHC V6. There are actually a total of FOUR, on this particular engine. This is a job that I would NOT recommend anyone even thinking of attempting to replace, if it's by anyone other than a FORD DEALER TECHNICIAN FAMILIAR WITH DIASSEMBLY/ASSEMBLY OF 4.0L SOHC V6 ENGINES. The reason for this is because, this particular engine is an interference engine BIG TIME!!! There are NO timing marks on this particular engine. They require FIVE dedicated Ford/Rotunda tools to service.

Mar 28, 2011 | 1998 Ford Explorer

1 Answer

Setting of timing chains


Get Ford timing tool kit, part = otc-6488 (For about $119 USD on eBay)

4 timing chains (3 front including the optional balance shaft chain + 1 back)

2 cam guides (1 front + 1 back)

2 oil tensioners (1 front + 1 back)

1 jackshaft tensioner (1 front)

1 jackshaft guide/cassette (1 front)

1 balance shaft tensioner (1 front) (will probably be ok, so dont replace it)

1 balance shaft guide (1 front) (will probably be ok, so dont replace it)

new sprockets + bolts + gaskets etc.

new spark plugs + throttle body cleaner + lithium grease spray + oil change

head gaskets


some of these parts (the front stuff) can be obtained as a primary timing chain rattle noise kit Part# = 2u3e-6d256-** ab for 4*4 & bb for 2*4.

The kits also have later part numbers for us$ 76 @ http://www.fordpartsonline.com


My parts order (without the balance shaft stuff) was:

$76.04 KIT-TENSIONER TIMING 2u3e-6d256-ab

$47.93 Engine, Camshaft and timing, Timing chain, TIMING CHAIN, Explorer, Mountaineer, Rear - 4.0L SOHC - 4.0L SOHC

$57.36 Engine, Camshaft and timing, Chain guide, CHAIN GUIDE, Explorer, Mountaineer, Jackshaft To Cam - 4.0L SOHC - 4.0L SOHC

$103.22 Engine, Overhaul gasket set, OVERHAUL GASKET SET, Explorer, Mountaineer, Upper (Valve Grind) - 4.0L SOHC - 4.0L SOHC

$28.93 Engine, Camshaft and timing, Tensioner, TENSIONER, Explorer, Mountaineer, Upper - 4.0L SOHC - 4.0L SOHC

Its worth mentioning that this procedure is not enjoyable at all and should be undertaken with at least 8 full days to completion (I recon you could do it in half the time the second time).

It is basically on entire engine re-build with both heads off and the engine out of the vehicle.

It is not possible to do the rear chain or sprocket with the engine in the car as the flywheel needs to come off + at least 1 head, but it is possible to do the front primary chain and or front cam chain with the engine in the car.

You will be a ford exploder and timing expert after you do this - the main reason should be the love of your American built vehicle. Its a solid car - except for the plastic guides!

Disclaimer Note: This is how i successfully did the job, but i am not a ford mechanic and don't hold me responsible if this does not work for you.
Timing Overview

A Small Sprocket on the crank turns a larger (2 to 1 ratio) jackshaft sprocket that is in turn connected front & back to the 2 camshafts.

Thus a 360o turn of the crank will turn both the camshafts 180o.

Firing order is 1-4 2-5 3-6, Right side numbers 1,2,3. Left Side = 4,5,6.

At TDC pistons 1 & 5 are fully raised, thus 1 is about to spark & 5 is evacuated.

The engine will turn freely (no piston to valve contact) with the cams 180o out, it will even run (roughly) with 1 out 180o, any other settings may cause major damage to the valves.

The 2 cam shafts come with timing markings, "yes" real timing marks that anyone can use (even without special tools) to ensure correct timing.

The way to time it is to ensure both the off centre cam shaft slits are level/flat with the head.

With the engine at TDC both the cams need to have the off centre slot in the same position either up and level or down and level.

It is super critical that both the camshafts are 100% in sink with each other, i.e. not a few degrees off, the engine computer can compensate for crank timing but not engineering failure.

Be warned the camshafts can turn easily fast & hard by themselves as a few springs are compressed at TDC, I got my finger jammed and its still healing + if the engine is not at TDC you may damage a valve.

Now heres the hard thing that you will need special tools for - if you need to change the timing, you will need to be able to undo the cam sprocket bolt on both cams & these are done up real tight.

There is a tool that you attach that has 2 pencil thick shafts that fit into the sprocket and prevent it from turning - then you need to put about 90Nm of force on the bolt (remember the rear one if LHT)

For the $money$, its well worth getting yourself the tool kit - it will save you hours in the long run. Search eBay for otc-6488 should be US $119 - then sell them again for say $100.

There is also a tool version of the oil tensioner in the kit that screws right in and puts the correct amount of force on the chain + guide, to enable you to do up the cam bolt with the chain and sprocket in the right spot on the cam.


Dec 20, 2010 | 2003 Ford Explorer

1 Answer

2000 ford explorer sport 4x4 timing timing chain rattling. have heard that changing to a synthetic 5w30 oil with wix filter will quieten it down. any feedback or experience on this ? It is the 4.0 sohc...


A change of oil may help, but problem likely due to a combination of stretched timing chain and worn anti rattle chain tensioner.
If noise persists, a new chain and checks to tensioner would be worthwhile.

Jan 22, 2010 | 1997 Ford Explorer AWD

2 Answers

Timing chain alignment 1999 ford explorer sohc


not true. SOHC 4.0 tensioner and rails fall apart, allowing the chain to slap and do damage, or even break. book it. in order to replace rioght side cam chain and tensioner, the engine MUST BE REMOVED! if it has balance shaft chain in oil pan, there are a total of four chains in this engine.

Jun 25, 2009 | 1999 Ford Explorer

1 Answer

Maintenance questions in ref to Ford Sport Track, 2004


You have a 4.0L SOHC engine which has 4 timing chains. No belts. The only thing you have to worry about is the chain tensioners breaking. You'll get engine noise at idle from underneath or it'll sound like pinging at 2200 to 2700 rpms.

Apr 12, 2009 | Ford Explorer Sport Trac Cars & Trucks

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