2006 Sierra 1500 Belt Tensioner

[VonDutch]

Say, I just bought an 06 Sierra 1500 4.3L 66,000mi

And I'm in the process of going through it

I have changed the fluids, and I'm going to flush the radiator as well,

I threw a code 128, Thermostat

So I swapped out the thermostat belt and tensioner

I noticed when I was changing the thermostat that the tensioner was jumping quit alot and I was getting a clicking noise under the hood when I was

driving it

 

Question: Is it normal for the belt tensioner to jump around on the belt

like that ?

My other trucks never did that

 

Also I installed a gator back belt and it quieted down

quite alot under the hood

In case anyone else was wondering

 

Any futher recommendations while I'm going through this new to me truck

 

I am clueless when it comes to late model Sierra's

 

 

Thanks, fella's

[VonDutch]

Com'on now

 

I know there has to be a couple of wrench's out there

[Gregorio]

Does your alternator have a decoupler or overrun pulley? It is usually the source of both the ticking and the tensioner going crazy. Not sure which vehicles GM put them on but adding one to yours can eliminate the problem.

 

http://www.decouplerpulley.com/

 

With decoupler

http://www.rmsautoparts.com/prodimages/15845338.jpg

 

Without

http://www.rmsautoparts.com/prodimages/15263859.jpg

[VonDutch]

II

Does your alternator have a decoupler or overrun pulley? It is usually the source of both the ticking and the tensioner going crazy. Not sure which vehicles GM put them on but adding one to yours can eliminate the problem.

 

http://www.decouplerpulley.com/

 

With decoupler

http://www.rmsautoparts.com/prodimages/15845338.jpg

 

Without

http://www.rmsautoparts.com/prodimages/15263859.jpg

 

 

I have the Over run pulley

I thought it was strange that the tensioner was jumping in travel

 

So I'll look into the Decoupler pulley I guess

 

Thanks for your response and the idea for the Fix

[Wingnut]

They'll hop around a bit...I wouldn't worry unless it's jumping off repeatedly.

[VonDutch]

They'll hop around a bit...I wouldn't worry unless it's jumping off repeatedly.

 

Thanks for your reply

 

The water pump does'nt seem to be pushing much water either lol

 

I can easily squeeze the top hose and can barely feel a surge of water when released But my temps are 210*

so I'm not too concerned for the moment

 

But like I said I'm going through this truck and am going to fix these poor performing areas in the engine Baie