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07-08-2015, 06:59 AM
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#1
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Senior Member
Join Date: Apr 2010
Posts: 1,295
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C7 belt tensioners failed
What are the chances that both the water pump tensioner and the main belt tensioner failed at the same time? That is apparently what happened to me. Of course the belts went with them. One failing is understandable. Two at the same time is difficult to understand. I knew it was time to change the belts but was having difficulty getting a service appointment between trips. (Service availability in my area is a different rant.)
I would like to hear of possible scenarios where two tensioners fail at the same time or close to the same time.
Driving west out of Detroit, Low battery warning illuminates, then a fault for auto idle, then check engine, Then engine high temperature warning, then engine protect light.
Then I dropped it off at Cummings Bridgeway for repair. It was very close to where the incident occurred.
__________________
Pcurt
2007 Fleetwood Bounder 38V
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07-08-2015, 10:57 AM
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#2
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Senior Member
Join Date: Dec 2009
Location: Out there, somewhere
Posts: 9,896
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Quote:
Originally Posted by pcurt23
What are the chances that both the water pump tensioner and the main belt tensioner failed at the same time? That is apparently what happened to me. Of course the belts went with them. One failing is understandable. Two at the same time is difficult to understand. I knew it was time to change the belts but was having difficulty getting a service appointment between trips. (Service availability in my area is a different rant.)
I would like to hear of possible scenarios where two tensioners fail at the same time or close to the same time.
Driving west out of Detroit, Low battery warning illuminates, then a fault for auto idle, then check engine, Then engine high temperature warning, then engine protect light.
Then I dropped it off at Cummings Bridgeway for repair. It was very close to where the incident occurred.
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Well,
At first guess, I might think that, when the first tensioner fails, no matter which one, and that caused a belt to dislodge and or break, that broken belt may, just may, have interfered with the operation of the other belt and its tensioner. And that may have been enough of a disruption of service that, the second belt and tensioner failed due to the first one causing a "jamb up" of close proximity of all those belt parts. Just a guess.
But, I'd say that in all reality, for both tensioners to fail simultaneously, is about the same as me winning the lotto, ANY LOTTO.
Scott
__________________
2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '20 Honda NC750X DCT
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Heidi character, (mini Schnauzer)!
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07-12-2015, 06:40 AM
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#3
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Member
Join Date: Feb 2011
Location: milford va
Posts: 94
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belts and tensioners
As a truck mechanic I wanted to check belts and tensioners on my new to me 03 3126.Found tensioner bearings noisy,idler pulley falling apart and bearings loose and bad on water pump idler.Only 46k but time takes its toll on sealed bearings.Glad it happened to you so close to a shop that could repair it! Happy traveles Ronster
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07-12-2015, 07:06 AM
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#4
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Senior Member
Join Date: Feb 2011
Location: Snowbird - Waterford Mi and Citrus Springs Fl.
Posts: 3,609
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There's a certain amount of logic that would figure the tech was in there replacing the belts, found one tensioner shot, and replaced the second figuring it wasn't going to be long before that one let go as well? He did that second one as a sort of preventative maintenance....
Does your coach have a grease fitting on the water pump? If so, was it greased while he was in there? If not, was that bearing checked as well?
__________________
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake
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07-13-2015, 09:44 AM
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#5
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Senior Member
Join Date: Apr 2010
Posts: 1,295
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According to the tech, both were frozen. The people I use are very reliable.
__________________
Pcurt
2007 Fleetwood Bounder 38V
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07-13-2015, 10:42 AM
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#6
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Senior Member
Join Date: Feb 2011
Location: Snowbird - Waterford Mi and Citrus Springs Fl.
Posts: 3,609
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Did they give you a chance to check out the parts they replaced?
__________________
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake
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07-13-2015, 11:15 AM
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#7
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Senior Member
Join Date: Dec 2009
Location: Out there, somewhere
Posts: 9,896
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Quote:
Originally Posted by pcurt23
According to the tech, both were frozen. The people I use are very reliable.
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pcurt,
Just wondering, you say that the tech said "Both were frozen". Both WHAT were frozen, the spring loaded sections that keep the tension or, the bearings in both tensioners? And, by law, they MUST give you the parts they removed.
Scott
__________________
2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '20 Honda NC750X DCT
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Heidi character, (mini Schnauzer)!
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