Belt Tensioner SNAPPED OFF

[got3fords]

Same break on my 2020 ranger. On the highway for 5 mins, I get an overheat light. Serpentine belt mangled and my pulley laying on top of the brush gaurd. Originally quoted 3900 by ford, but they agreed to take it down to 1800 after some talk. The break looks very similar to yours.

Wow! But your fan hose thing is still intact.

Sponsored

 

[Dereku]

overall fords are tough trucks. Their testing goes above and beyond the limits for good reason. A few problems is to he expected. Lookbat Chevy and their holy grail engine, the push rod V8, it is experiencing catastrophic failures now. ? Happens. Its life, most of us are happy.

If your not happy with your truck, blow a tranny. Typically just makes you filled with rage. Then you can relax about little things.

 

[TJC]

How many more times more capable is your 5G ranger than your 4G ranger? How many more systems exist? How much more comfortable? Yeah modern vehicles are more complicated. They're also a hell of a lot safer and more capable than older vehicles. Complexity is the price you pay for capability. You're more than welcome to sell your 5g ranger and drive old vehicles instead of whining about it.

It is more capable, but reliability trumps capability for me personally. Capability means nothing if the truck isn't reliable. I put more $$ keeping the 5G running than I have put in the last 6 autos that I have owned - COMBINED. That said, I do like the truck when it is running. My wife says "unload it", but I hang on hoping that I am at the end of the trouble train. Guess I am forever an optimist. 25K miles in 5 years. The truck has been pampered.

 

[TJC]

Wow! But your fan hose thing is still intact.

Only because I caught it in time! I think it will last for quite a while with the fix I did.

I like the truck.

But Ford could do a lot better for minimal expense. I'd have paid $1K more for a better driveshaft, fan clutch / electric fan, stronger AC ducts, the better transmission parts, and a better EGR system. And let's not forget what brought me here, the timing chain cover.

This horse has been beat to death. The truck is what it is, and opinions rarely change.

If you are happy with your truck I'm happy for you.

Live and let live.

 

[Motorpsychology]

The fuel in my oil has seeped into the transmission and now it shifts more smoothly. The water in plug well #4 causes a misfire, but that offsets the driveshaft vibration perfectly. ?

I do sympathize with those having major problems with theirs, but it's true what they say about forums; people come to vent and seek advice. My Ranger purchase was the result of the horror stories on escape.org with coolant intrusion in those 1.5L fours. I never had an issue with mine but tik tok...

I did have the heater plenum replaced under warranty but other than that, just maintenance. I was able to buy the original Lariat engine cover before Covid, but I never had a problem with water; it is garage kept, though. Coming up on four years @79,587 mi and it's been one of my all-time favorite vehicles.


`

 

[dapakattack]

The official sponsor of Ford Engine Castings

Would placing a smattering of J-B Weld along the face actually help it from separating?

 

[Dereku]

Would placing a smattering of J-B Weld along the face actually help it from separating?

Put it in the fuel tank, keeps the fuel out of the oil!

 

[airline tech]

So, if we use a (Block) like this that @Loweredon33s, designed it would help absorb the forces exerted on the (Tensioner) if the bearings were to wear and start a grabbing as the added block will limit the (Rotation) and (Kick-Back) force
I would have to actually get a wrench on this to see how far it actually moves to simulate a grabbing bearing.

It (MAY) be advisable to just replace this as (Preventive Maintenance) since so far, no one has stated they have had a belt squealing prior to this breaking, which should be an indication of the bearing going bad and or the (Spring Tension) weakening.

So, it is giving - no prior (normal symptoms) and the extra stress created on the (Mounting Ears)
weakens to the point (it just let's go)
I would image that the (Tensioner) is rocking excessively and would be a good visual indication of this possibly being a (NEED TO ADDRESS) and not overlook it or the end result will eventually be breaking off.

The Engine Front Cover is not an easy thing to replace and is labor intensive as well as requires special tooling (Alignment Pins etc) for the Cam & Crank

So, I would rather spend less than 1 hour (Preventive) replacing the Tensioner and the associated (Idler) pulley vs 12 plus hours replacing the (Engine Cover) and sourcing parts and tooling.
As I suspect 1 of the (2) is the root cause

It actually looks like they revised the Part # for the Tensioner.
I do not know the reason for listing (2) separate part #'s for it but the
(-C) is a revised part # from (-A) Tensioner K2GZ-6A228-C is the revised part #.
What did they revise? (IDK) but they may be addressing this issue.

Items 7 & 8 are what is needed.

 

[Loweredon33s]

So, if we use a (Block) like this that @Loweredon33s, designed it would help absorb the forces exerted on the (Tensioner) if the bearings were to wear and start a grabbing as the added block will limit the (Rotation) and (Kick-Back) force
I would have to actually get a wrench on this to see how far it actually moves to simulate a grabbing bearing.

It (MAY) be advisable to just replace this as (Preventive Maintenance) since so far, no one has stated they have had a belt squealing prior to this breaking, which should be an indication of the bearing going bad and or the (Spring Tension) weakening.

So, it is giving - no prior (normal symptoms) and the extra stress created on the (Mounting Ears)
weakens to the point (it just let's go)
I would image that the (Tensioner) is rocking excessively and would be a good visual indication of this possibly being a (NEED TO ADDRESS) and not overlook it or the end result will eventually be breaking off.

The Engine Front Cover is not an easy thing to replace and is labor intensive as well as requires special tooling (Alignment Pins etc) for the Cam & Crank

So, I would rather spend less than 1 hour (Preventive) replacing the Tensioner and the associated (Idler) pulley vs 12 plus hours replacing the (Engine Cover) and sourcing parts and tooling.
As I suspect 1 of the (2) is the root cause

It actually looks like they revised the Part # for the Tensioner.
I do not know the reason for listing (2) separate part #'s for it but the
(-C) is a revised part # from (-A) Tensioner K2GZ-6A228-C is the revised part #.
What did they revise? (IDK) but they may be addressing this issue.

Items 7 & 8 are what is needed.

I think it’s vibration and harmonics. The tensioner is hanging off two weak bosses in single shear and is just in a terrible position for leverage and is prone to stress fractures because of it. My reinforcement adds mounting rigidity to the other side and holds the timing cover/tensioner in more places to keep that from happening.

 

[Dereku]

I think it’s vibration and harmonics. The tensioner is hanging off two weak bosses in single shear and is just in a terrible position for leverage and is prone to stress fractures because of it. My reinforcement adds mounting rigidity to the other side and holds the timing cover/tensioner in more places to keep that from happening.

Alright, do you have a thread with all the cool stuff you have made? Do you also have an online store?

 

[Loweredon33s]

Alright, do you have a thread with all the cool stuff you have made? Do you also have an online store?

No, I don’t promote or sell my stuff here because of rules etc. I’m on facebook and have two groups there. I have a few interesting things that I’ve made for Rangers as well as a lot of other Fords.

 

[Fawnbuster]

Definitely looks a like a metallurgy failure of the timing cover to crack like that, even broke across those re-enforcing ribs too. No way I can see them blaming that on any of your parts.

Wondering if the belt flew apart due to age and normal cracking and that caused the tensioner to be broken off?

 

[Stevedbvik1]

So, if we use a (Block) like this that @Loweredon33s, designed it would help absorb the forces exerted on the (Tensioner) if the bearings were to wear and start a grabbing as the added block will limit the (Rotation) and (Kick-Back) force
I would have to actually get a wrench on this to see how far it actually moves to simulate a grabbing bearing.

It (MAY) be advisable to just replace this as (Preventive Maintenance) since so far, no one has stated they have had a belt squealing prior to this breaking, which should be an indication of the bearing going bad and or the (Spring Tension) weakening.

So, it is giving - no prior (normal symptoms) and the extra stress created on the (Mounting Ears)
weakens to the point (it just let's go)
I would image that the (Tensioner) is rocking excessively and would be a good visual indication of this possibly being a (NEED TO ADDRESS) and not overlook it or the end result will eventually be breaking off.

The Engine Front Cover is not an easy thing to replace and is labor intensive as well as requires special tooling (Alignment Pins etc) for the Cam & Crank

So, I would rather spend less than 1 hour (Preventive) replacing the Tensioner and the associated (Idler) pulley vs 12 plus hours replacing the (Engine Cover) and sourcing parts and tooling.
As I suspect 1 of the (2) is the root cause

It actually looks like they revised the Part # for the Tensioner.
I do not know the reason for listing (2) separate part #'s for it but the
(-C) is a revised part # from (-A) Tensioner K2GZ-6A228-C is the revised part #.
What did they revise? (IDK) but they may be addressing this issue.

Items 7 & 8 are what is needed.

I’m still hung up on all the reported failures on here have been 2020’s. Plenty of 2019 and 2021’s with high mileage and no failures. And wondering about the part # revisions especially in 2020. It would be interesting if we could get the build dates of the failed ones.

 

[Cmar]

A similar problem affected the oil pump housing on the 2.7, 3.0 V6 ford diesels used in Land Rover Discoveries and Ford Territories in Australia, just trying to save too much material in the casting, warranty replacement parts, aftermarket parts and later dealer replacement parts had a thicker webbing reinforcing piece. Google Ford 2.7 diesel oil pump failure.

 

[Stevedbvik1]

@20_lariet , @Lonewolf831 and @Rkahl90 could you provide your build dates for your 2020 Rangers that have had this failure?
@TheBadger I think you mentioned that yours was 08/20 correct?
Not very scientific but it would be interesting to see how close the build dates are.

Sponsored