Belt Tensioner SNAPPED OFF

TheBadger

Well-Known Member
First Name
E
Joined
Sep 14, 2021
Threads
5
Messages
136
Reaction score
588
Location
Northern California
Vehicle(s)
2020 STX Crew 4Ă—4
Occupation
Union Pipefitter
6am, Saturday morning, I pulled out onto the arterial and got up to speed. Then a violent clattering from the engine, "check brakes" and "low oil pressure" warnings, so I stopped immediately and shut her off. I found the serpentine belt shredded and wrapped around the fan, and various tubes and wires severed. Eventually noticed the belt tensioner has snapped clean off and must have been slung into the radiator tank, because that's leaking. At the dealership now awaiting diagnostics.

Ford Performance tune, aFe charge pipes, mishimoto intake, 3" turbo back. Think they'll tell me the mods caused this?

PSX_20230926_222306.jpg
PSX_20230926_201925.jpg
Sponsored

 
Last edited:

Danager

Well-Known Member
First Name
Dan
Joined
Apr 3, 2021
Threads
11
Messages
1,022
Reaction score
3,603
Location
Alberta
Vehicle(s)
2019 Edge
Occupation
Manager
That sucks. A big chunk of metal and spinning rubber sure can do a lot of damage. All though it’s BS, I imagine the dealer will put up some resistance here. Keep us updated. Best of luck.
 


OP
OP
TheBadger

TheBadger

Well-Known Member
First Name
E
Joined
Sep 14, 2021
Threads
5
Messages
136
Reaction score
588
Location
Northern California
Vehicle(s)
2020 STX Crew 4Ă—4
Occupation
Union Pipefitter
Thanks bro. There's no way the belt snapped and lassooed it. Right? No freakin way.

These motors can handle 400hp. I see no performance serpentine belt option. Service schedule says inspect belts at 150K. A very generous estimate would be 20% increase in hp from the mods. 20% reduction in mileage = 120K.

Metallurgy ass mfn FAILURE!
Loan vehicle please!
 
Last edited:

MarioCart

Banned
Banned
First Name
Mario
Joined
Sep 22, 2023
Threads
3
Messages
248
Reaction score
621
Location
Canada
Vehicle(s)
Ranger
Occupation
Employed
I'm no metallurgical expert, but you can see two deviations on either side of this fastener.
Clearly a casting fault brought to light with the torque of that bolt, which propagated into a crack that spread fast because of the belt tension. See if the dealership can argue that point effectively. Use bigger words if necessary.

1695809474516.png
 

KJRR

Well-Known Member
First Name
KJ
Joined
Feb 1, 2020
Threads
13
Messages
1,741
Reaction score
8,669
Location
Cleveland, OH
Vehicle(s)
'19 Ford Ranger, '14 Ford Edge, '74 VW Type 181
Occupation
Professional Curmudgeon

DukeCanBuildit

Well-Known Member
First Name
Duke
Joined
Jul 27, 2020
Threads
48
Messages
6,499
Reaction score
30,316
Location
Toronto, Ontario
Vehicle(s)
2019 XLT SuperCab
Occupation
Husband-Caregiver
Vehicle Showcase
1
 



Top