[E-450 with V10 serpentine belt instability and noise]

Yes , you were correct. Bolt from Ford ($20.) and a non OEM pulley installed .

Thanks for the continued help ! 

[E-450 with V10 serpentine belt instability and noise]

On 10/24/2023 at 8:00 AM, Bullitt6283 said:

A quick online search for N808102-S437 shows several sources for this bolt.

Here's one:

https://www.tascaparts.com/oem-parts/ford-idler-pulley-bolt-n808102s437

 

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On 10/26/2023 at 1:25 PM, Bullitt6283 said:

If I recall correctly, the idler pulley on the passenger side of the block is the same pulley number and held on with the same bolt. Perhaps a trip to a salvage yard would solve the bolt problem....

..

 

[E-450 with V10 serpentine belt instability and noise]

7 minutes ago, Witchdoc Canada said:

Thanks so much.  Now my issue Ford parts in Canada shows no bolt #id

to hold the pulley on .   I gave them that 

# and nothing popped up ???

any other code that would help parts dept? 
oh, tried Lordco parts in Canada they have lots of these  pulleys , but no bolt to hold it on . 

 

Thank you Bullitt .your info was bang on.

installed the items ( 20$ Ford bolt and a 40$ non oem pully )   Can’t test it fully until a 

March with a trip into states of WA down to ARIZ then back up through Utah , ID. 

[E-450 with V10 serpentine belt instability and noise]

On 1/26/2021 at 7:53 PM, Gidyupgo said:

Bullitt6283, I am surprised more people aren't discussing this. Maybe on a different forum? Anyway, 2016 6.8 in a Class C with 41k miles. It's been making this noise since new (4 years) at 2100 rpm. Installed the driver's side idler today. Pulled the air filter for access and easily deflected the belt enough to install. I did not loosen or replace the belt. Inspected it and it looked fine. Leaving tomorrow for a 750 mile trip. 

Thanks so much.  Now my issue Ford parts in Canada shows no bolt #id

to hold the pulley on .   I gave them that 

# and nothing popped up ???

any other code that would help parts dept? 
oh, tried Lordco parts in Canada they have lots of these  pulleys , but no bolt to hold it on . 

 

[E-450 with V10 serpentine belt instability and noise]

On 10/26/2023 at 1:25 PM, Bullitt6283 said:

If I recall correctly, the idler pulley on the passenger side of the block is the same pulley number and held on with the same bolt. Perhaps a trip to a salvage yard would solve the bolt problem....

..

Thanks , great idea.  Maybe a Id# for Ford on that pulley bolt ! 

[E-450 with V10 serpentine belt instability and noise]

On 1/26/2021 at 7:53 PM, Gidyupgo said:

Bullitt6283, I am surprised more people aren't discussing this. Maybe on a different forum? Anyway, 2016 6.8 in a Class C with 41k miles. It's been making this noise since new (4 years) at 2100 rpm. Installed the driver's side idler today. Pulled the air filter for access and easily deflected the belt enough to install. I did not loosen or replace the belt. Inspected it and it looked fine. Leaving tomorrow for a 750 mile trip. 

Thanks so much.  Now my issue Ford parts in Canada shows no bolt #id

to hold the pulley on .   I gave them that 

# and nothing popped up ???

any other code that would help parts dept? 
oh, tried Lordco parts in Canada they have lots of these  pulleys , but no bolt to hold it on . 
Listen to this.CRAZY  Ford will not allow parts shipped to Canada from USA as tried that web site ! 
Frustrating; a 6 $ bolt and can’t get it in Canada . Found a USA parts site but want

$50 shipping ,   Does it ever end ? 
Any Canadian V10 Ford part buyers in this forum want to chirp in ? 
 

[E-450 with V10 serpentine belt instability and noise]

On 1/26/2021 at 7:53 PM, Gidyupgo said:

Bullitt6283, I am surprised more people aren't discussing this. Maybe on a different forum? Anyway, 2016 6.8 in a Class C with 41k miles. It's been making this noise since new (4 years) at 2100 rpm. Installed the driver's side idler today. Pulled the air filter for access and easily deflected the belt enough to install. I did not loosen or replace the belt. Inspected it and it looked fine. Leaving tomorrow for a 750 mile trip. 

Thanks so much.  Now my issue Ford parts in Canada shows no bolt #id

to hold the pulley on .   I gave them that 

# and nothing popped up ???

any other code that would help parts dept? 
oh, tried Lordco parts in Canada they have lots of these  pulleys , but no bolt to hold it on .