Do cherokees have a serpentine belt tensioner? - JeepForum.com

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post #1 of 21 Old 02-07-2013, 01:01 PM Thread Starter
SteeSin
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Do cherokees have a serpentine belt tensioner?

Ive been trying to find auto parts stores local and online and nobody carries a ''Serpentine belt tensioner'' and online i get 0 results, only thing that comes up is a idler pulley. For the problem im having ive been told i need a tensioner but cant find it anywhere and i need it asap because i cant drive my jeep because I think the belt isnt spinning the alternator and it drained my battery all the way, the gauge for the battery stayed all the way down. I know you can tighten it but last time i had a mechanic look at it they put a new belt in because it was squeaking then said its still gonna squeak because the tensioner is bad... but then again how come i cant find this part anywhere???

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post #2 of 21 Old 02-07-2013, 01:12 PM
slickfreeze
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there is no tensioner, the belt is tightened from the power steering pump bracket. there is an idler pulley, but it does not effect the tension. If the idler pulley is bad, it will create squeaking noises. start it up and look under the hood and see if the alt. is turning. you might just have a bad alt.

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post #3 of 21 Old 02-07-2013, 01:21 PM Thread Starter
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Quote:
Originally Posted by slickfreeze View Post
there is no tensioner, the belt is tightened from the power steering pump bracket. there is an idler pulley, but it does not effect the tension. If the idler pulley is bad, it will create squeaking noises. start it up and look under the hood and see if the alt. is turning. you might just have a bad alt.
I did an alternator test and that came up fine
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post #4 of 21 Old 02-07-2013, 01:23 PM Thread Starter
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Quote:
Originally Posted by slickfreeze View Post
there is no tensioner, the belt is tightened from the power steering pump bracket. there is an idler pulley, but it does not effect the tension. If the idler pulley is bad, it will create squeaking noises. start it up and look under the hood and see if the alt. is turning. you might just have a bad alt.
i dont get what i have to replace
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post #5 of 21 Old 02-07-2013, 01:24 PM Thread Starter
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Quote:
Originally Posted by slickfreeze View Post
there is no tensioner, the belt is tightened from the power steering pump bracket. there is an idler pulley, but it does not effect the tension. If the idler pulley is bad, it will create squeaking noises. start it up and look under the hood and see if the alt. is turning. you might just have a bad alt.
and it was squeaking before and after the new belt was replaced, so would the idler pulley affect the alternator working?
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post #6 of 21 Old 02-07-2013, 01:26 PM
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How did you test the alternator?

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post #7 of 21 Old 02-07-2013, 01:29 PM
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press on the belt, (when the vehicle is turned off) it shouldnt really move. I cant remember the exact deflection but it isnt much. Its supposed to feel pretty solid. if its loose all ya gotta do is tighten it from the power steering pump. you can find lots of threads on how to tighten the belt. Its a pretty easy process. NAPA sells a gauge you can use if you wanna get the tension exact.

________oooo
//__l_l_,\____\,_____
l_/-\_l__l_/-\_|[]lllll[]|
_\_/==== |; _\\ \\
_(o)_)___(o)_)--o-)_)

"ask not what your country can do for you; ask what you can do for your country." John F. Kennedy
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post #8 of 21 Old 02-07-2013, 01:33 PM Thread Starter
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Quote:
Originally Posted by slickfreeze View Post
press on the belt, (when the vehicle is turned off) it shouldnt really move. I cant remember the exact deflection but it isnt much. Its supposed to feel pretty solid. if its loose all ya gotta do is tighten it from the power steering pump. you can find lots of threads on how to tighten the belt. Its a pretty easy process. NAPA sells a gauge you can use if you wanna get the tension exact.
It's very loose I think because I was able to twist it quarter of the way
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post #9 of 21 Old 02-07-2013, 01:50 PM
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That actually sounds about right, mine twists about a quarter. Im thinking you have two problems. is the noise you hear more of a squeak or a squeal? is it constant or just when u turn on the A/C or something? How did you have the alt. tested? im betting the belt isnt the issue as to why your alt has no output. if the belt was too loose to turn the alt. i would imagine it would be too loose to turn the water pump and power steering pump.

________oooo
//__l_l_,\____\,_____
l_/-\_l__l_/-\_|[]lllll[]|
_\_/==== |; _\\ \\
_(o)_)___(o)_)--o-)_)

"ask not what your country can do for you; ask what you can do for your country." John F. Kennedy
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post #10 of 21 Old 02-07-2013, 02:44 PM
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Quote:
Originally Posted by SteeSin View Post
Ive been trying to find auto parts stores local and online and nobody carries a ''Serpentine belt tensioner'' and online i get 0 results, only thing that comes up is a idler pulley. For the problem im having ive been told i need a tensioner but cant find it anywhere and i need it asap because i cant drive my jeep because I think the belt isnt spinning the alternator and it drained my battery all the way, the gauge for the battery stayed all the way down. I know you can tighten it but last time i had a mechanic look at it they put a new belt in because it was squeaking then said its still gonna squeak because the tensioner is bad... but then again how come i cant find this part anywhere???
You need a new mechanic.
As Slickfreeze has pointed out, the power steering pump is the "tensioner" for the belt.
Loosen the bolts for the PS pump and move it and you should get the basic idea...
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post #11 of 21 Old 02-07-2013, 03:31 PM
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Quote:
Originally Posted by sAe23 View Post
You need a new mechanic.
As Slickfreeze has pointed out, the power steering pump is the "tensioner" for the belt.
Loosen the bolts for the PS pump and move it and you should get the basic idea...
The power steering pump is the adjustment on 87-95 models, the 96-01 use an idler for adjustment.

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post #12 of 21 Old 02-07-2013, 05:08 PM
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Quote:
Originally Posted by MJR View Post
The power steering pump is the adjustment on 87-95 models, the 96-01 use an idler for adjustment.
thats a good point! I forgot they changed it on the newer body style! I found this little thread that shows a pretty good picture of how to adjust the newer style tensioners. Its actually even easier than the old power steering pump style

http://www.jeepforum.com/forum/f11/s...aling-1161327/

________oooo
//__l_l_,\____\,_____
l_/-\_l__l_/-\_|[]lllll[]|
_\_/==== |; _\\ \\
_(o)_)___(o)_)--o-)_)

"ask not what your country can do for you; ask what you can do for your country." John F. Kennedy
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post #13 of 21 Old 02-07-2013, 05:22 PM
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Quote:
Originally Posted by slickfreeze View Post
thats a good point! I forgot they changed it on the newer body style!
One year before.

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post #14 of 21 Old 02-07-2013, 05:28 PM
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Quote:
Originally Posted by MJR View Post
One year before.
the 96's dont count, they are the bastard child between the new and the old haha

________oooo
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l_/-\_l__l_/-\_|[]lllll[]|
_\_/==== |; _\\ \\
_(o)_)___(o)_)--o-)_)

"ask not what your country can do for you; ask what you can do for your country." John F. Kennedy
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post #15 of 21 Old 02-07-2013, 07:21 PM Thread Starter
SteeSin
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Thanks guys
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