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Belt Tensioner

6K views 19 replies 8 participants last post by  Tripplec 
#1 ·
I own a 2008 santa fe SE, the belt tensioner start to making noise recently, just wonder if it's covered under the warranty so I dont have to pay out-of-pocket to get it fixed. This car have 68000 miles so far.
 
#2 ·
I think this will come out of your pocket, but not all that much anyway. Which tensioner are we talking about? Neither one take all that long to change anyway. I replaced both on my 03 recently and they don't take more than 15 minutes to change. Pulling off the tire and putting it on blocks takes up most of the time.
 
#4 ·
I had my own person unit done rather early on (30K?). However, it's under the 5/60K warranty, not the 10/100K, so you're out on both counts. It's a quick fix, though, and you won't be paying much for the part (it has been redesigned, BTW) or the labor.

So how does your sound? Mine sounded for all the world like the groan of a power steering pump, but of course, the sound was entirely unrelated to what I did with the wheel, so knew it couldn't be that.
 
#7 ·
and you won't be paying much for the part (it has been redesigned, BTW)

So how does your sound? Mine sounded for all the world like the groan of a power steering pump, but of course, the sound was entirely unrelated to what I did with the wheel, so knew it couldn't be that.
Where do you order the redesigned oem tensioner? Or just aftermarket one? My tensioner sounds like this pumping noise/vacuum noise.
 
#5 ·
What gone with it. If its the bearing in the pulley you maybe able to get another or even knock out the old bearing and replace it. The assemble should merely be bolted to the block and swinging the tension of the belt is all that's need to get the belt away and then you'd just unbolt it to remove the entire assemble. You should see what it holding it there.
 
#6 ·
What gone with it. If its the bearing in the pulley you maybe able to get another or even knock out the old bearing and replace it.
Not worth trying to source and replace the bearing separately. It's pressed in (or perhaps molded around) and not the sort of thing anyone would want to attempt. The part isn't that expensive. Part is 25286-3C250 and can be had for $32 at online Hyundai dealers.
 
#9 ·
Before you go quoting parts,, I see no mention of which engine we playing with..

The 3C-250 part quoted is not a tensioner pulley,, it is a static idler pulley used on the 3.3L in 2007 up to the 2012 3.5L
 
#11 ·
Agreed, but since I have no photos of the culprit from the OP, I have to go with what actually fails on these vehicles. So far, this is the usual suspect. If you'll recall, he said "Not exactly sure which tensioner needs to be replaced...", and there's only one, so I'd guess neither of us would bet a beer against the idler.

He's got a 2008 SE, so odds somewhat favor the failed pulley bearing on a 3.3L.

But OK.

To the OP: Would you be good enough to tell us which engine you've got?
 
#13 ·
Right, then. Odds are good that it's the idler pulley bearing (it's a fixed position pulley, unlike the actual tensioner which has motion), and the P/N above is the correct one for that part. There are tricks (hose or long screwdriver, etc. to ear) that can be used to isolate sounds if you're familiar with that trick.
 
#14 ·
Idler pulley = OEM Hyundai #25286-3C250 (upper right on the picture)
Tensioner pulley = Gates #38018 (center on the picture)



I replaced the idler pulley. easy.

but for the tensioner pulley,
which is attached with Torx 50,
I used an universal joint extension and kept to turn
then finally rounded the Torx head bolt. I decided not to replace it.
Probably I had to remove the whole auto tensioner assembly out from the engine first.

The bearing on the tensioner pulley is molded/covered with the plastic.
it can not be pushed out to replace only the bearing part.
 

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#17 ·
Idler pulley bearing have historically gone in most vehicles at one time or another. Simple to change or repack the bearing with grease and you're good to go.


I don't recall a tensioner failing in all the vehicles I know of friends or mine over the years. This would be the first if its bearing also wore out.
 
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