Serpentine belt tension assembly snapped in half

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austinado16

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Central Coast, CA
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Todd
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1990 w/307k miles on the clock
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GMC V1500 Suburban SLE
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5.7L TBI/4L60/3.42's
308,000mi and the original serp belt tensioner assembly broke in half, just above the pulley. WTH?

Fortunately it didn't happen during the 1,320mi round trip to the Grand Canyon 2 weekends ago. And... it didn't happen on the return trip to the Grand Canyon this past weekend, where I was towing my VW Rabbit Pickup on a tow dolly, so that I could leave one vehicle at the South Rim, drive the other to the North Rim, and then run across the canyon back to the South Rim. Literally, I was all loaded to leave, pulled away from the curb, heard a loud bang, and lost power steering and alternator. 5:30pm, but the local autozone had an AC/Delco tensioner assembly for $54, and a Continental belt for $36. It took longer to drive the 1 mile to the store, than to do the repair.
 

Vbb199

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Salisbury NC
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Vince
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89, 79
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89 Suburban R1500, 79 C10
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350, 502
Im at 332,000 on my burb (about the only thing original on the truck is the pulleys) and the tensioner makes a clicking noise when its cold in the morning....waiting to see what happens
 

AuroraGirl

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Taylor
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400(?), 350
my 3800 the tensioner goes from between the first tension notch and loose(so loose) all the way to full tension and just kinda swings back and forth! Rapidly!

i think the springs are no longer... loaded very much
 

Chevyguy

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Clayton
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1987
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V20
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5.7 Litre
308,000mi and the original serp belt tensioner assembly broke in half, just above the pulley. WTH?

Fortunately it didn't happen during the 1,320mi round trip to the Grand Canyon 2 weekends ago. And... it didn't happen on the return trip to the Grand Canyon this past weekend, where I was towing my VW Rabbit Pickup on a tow dolly, so that I could leave one vehicle at the South Rim, drive the other to the North Rim, and then run across the canyon back to the South Rim. Literally, I was all loaded to leave, pulled away from the curb, heard a loud bang, and lost power steering and alternator. 5:30pm, but the local autozone had an AC/Delco tensioner assembly for $54, and a Continental belt for $36. It took longer to drive the 1 mile to the store, than to do the repair.
Change the idler pulley also.

Sent from my SM-A705U using Tapatalk
 

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