Serpentine Belt Replacement (2 Viewers)

[016LC]

Can the serpentine accessory drive belt on the 200 series(2016) be replaced by accessing it from under the hood(rather than from below, requiring removal of the protection panels), maybe requiring removal of the coolant overflow container? I did it several times on my 100 series and it was a simple matter of routing the new belt properly and then using a wrench on the tensioner to rotate it to reduce tension on the tensioner pulley and sliding the belt over it. Any pitfalls or tips? I am at 75,000 miles and it seems like a good idea before summer travels. Should I replace the tensioner at the same time? My son-in-law had a tensioner fail on his Suburban at freeway speeds and it was pretty ugly.

Peter

 

[linuxgod]

If your vehicle chirps or squeals under cold start or when it's been raining it's reasonable to do belts and pulleys. If not, I would not bother until it makes noise. You'll very likely have 10k miles of warning before you have an issue.

 

[grinchy]

in case you want to make an underhood sticker of the belt routing

 

[bloc]

If your vehicle chirps or squeals under cold start or when it's been raining it's reasonable to do belts and pulleys. If not, I would not bother until it makes noise. You'll very likely have 10k miles of warning before you have an issue.

And if so, while you have it apart check the fan bearing bracket. I had a faint chirp even after new belt, idler and tensioner. Turned out to be the bracket.

 

[lostonaroad]

in case you want to make an underhood sticker of the belt routing

View attachment 3016612

I have been scouring the forums for this and finally found it! Tackling the Serpentine/Tensioner/Idler Pulley/Checking in on the water pump this weekend.

Many thanks!

 

[lostonaroad]

@grinchy @RET2 Either of you happen to know the Torque Spec for the Idler Pulley? I know the two on the tensioner (6mm/12mm) are 17 ft/lbs but can't find anywhere the Idler Pulley. Thanks in advance!

 

[lostonaroad]

idler pulley is 32 ft/lbs

 

[Five70]

Did this job today in my driveway. Took me two hours start to finish, taking my time. I prob could have knocked this out in an hour.

I got the Dayco tensioner & pulley from Advanced auto parts for $52 (on sale) and the Bando belt from Amazon for $21.

Plenty of videos on YouTube to follow. I went from the bottom and it was pretty easy.