# Jammed tensioner pulley **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** hyundai, sonata, damage, belts, engines, timing-belts\ **Created:** [March 7, 2008, 12:22am UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521 "2008-03-07T00:22:14Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![arby23](https://avatars.discourse-cdn.com/v4/letter/a/b5e925/32.png) [@arby23](https://community.cartalk.com/u/arby23)\ **Post date:** [March 7, 2008, 12:22am UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/1 "2008-03-07T00:22:14Z")
I recently had my car stall on me on a highway. The mechanic told me the tensioner pulley jammed and damaged the timing belt which led to engine damage (2001 Hyundai Sonata v6). The thing is I got my timing belt and water pump replaced just 10K miles before this incident happened with the same mechanic. He said he didn’t replace the tensioner pulley then. Was he supposed to replace the tensioner pulley along with timing belt and water pump? Thanks for your time. -arby23 ---
**Author:** ![americar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/americar/32/42_2.png) [@americar](https://community.cartalk.com/u/americar)\ **Post date:** [March 7, 2008, 12:32am UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/2 "2008-03-07T00:32:32Z")
Lets just say its good practice. ---
**Author:** ![Wha-Who](https://avatars.discourse-cdn.com/v4/letter/w/9f8e36/32.png) [@Wha-Who](https://community.cartalk.com/u/Wha-Who)\ **Post date:** [March 7, 2008, 12:51am UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/3 "2008-03-07T00:51:22Z")
Replacing the tensioner pulley is standard procedure with a VW, for example, to avoid what you said happened. Independent mechanic or dealer mechanic? ---
**Author:** ![pleasedodgevan](https://avatars.discourse-cdn.com/v4/letter/p/51bf81/32.png) [@pleasedodgevan](https://community.cartalk.com/u/pleasedodgevan)\ **Post date:** [March 7, 2008, 6:35am UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/4 "2008-03-07T06:35:51Z")
I’m glad you wrote in because I have a belief that a Hyundai isn’t as good as some of the other cars with good reliability ratings. I’m almost ready to permanently decide if they are equal to the others or just pretending. ---
**Author:** ![arby23](https://avatars.discourse-cdn.com/v4/letter/a/b5e925/32.png) [@arby23](https://community.cartalk.com/u/arby23)\ **Post date:** [March 7, 2008, 1:32pm UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/5 "2008-03-07T13:32:17Z")
Independent mechanic. I have found him to be honest and straight forward over the last couple of years. But now this happens. I am trying to figure if it is just my bad luck or something not done properly. Thank you for your reply ---
**Author:** ![arby23](https://avatars.discourse-cdn.com/v4/letter/a/b5e925/32.png) [@arby23](https://community.cartalk.com/u/arby23)\ **Post date:** [March 7, 2008, 1:33pm UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/6 "2008-03-07T13:33:36Z")
You may be right. Their reliability ratings seemed to have improved over time but I am not sure if that means anything ---
**Author:** ![arby23](https://avatars.discourse-cdn.com/v4/letter/a/b5e925/32.png) [@arby23](https://community.cartalk.com/u/arby23)\ **Post date:** [March 7, 2008, 1:38pm UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/7 "2008-03-07T13:38:43Z")
I called couple of Hyundai dealerships in the area. Nobody included pulley or water pump replacement in their timing belt replacement quotes. One guy said that they don’t replace water pump along with the timing belt unless requested by the customer. Another guy said they replace tensioner pulley only if it is bad. ---
**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\ **Post date:** [March 7, 2008, 1:52pm UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/8 "2008-03-07T13:52:01Z")
You don’t say how many miles are on the car, but a cautious mechanic will at least advise the customer to replace the tensioner and waterpump when the timing belt is replaced, even if they look okay. However, I doubt there is liability here. ---
**Author:** ![cappy208](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cappy208/32/31_2.png) [@cappy208](https://community.cartalk.com/u/cappy208)\ **Post date:** [March 7, 2008, 2:53pm UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/9 "2008-03-07T14:53:11Z")
it is funny, but i am doing just this repair on my car now. i was not going to replace the tensioner. but after your post i AM going to replace the tensioner. it is an extra 100 bucks, but this will eliminate the potential for failure like you had. in any case, it is probably the more prudent thing to do (replace tensioner) but it is not absolutely required. unfortunately you got caught by the chance luck. ---
**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\ **Post date:** [March 7, 2008, 3:24pm UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/10 "2008-03-07T15:24:01Z")
Here is a picture of the timing belt, idler (center hole), and tensioner (center hole, and off-center hole): Click on this [http://www.autozone.com/N,15101155/shopping/partTypeResultSet.htm](http://www.autozone.com/N,15101155/shopping/partTypeResultSet.htm) The usual instructions, in the repair manuals, is to “inspect the pulleys, and idler(s), and replace IF a defect is noted”. There isn’t, normally, instructions to replace the water pump at X miles; but, experience has shown that water pumps will often fail somewhere between the first and second timing belt change intervals. The timing belt driven water pump is exposed during the timing belt change procedure. Thus, this is an ideal time to kill two stones with one bird (preventive maintenance), and change the water pump (and engine coolant, etc.)…saving time, and labor, and money, and convenience, and stuff. ---
**Author:** ![MikeInNH](https://avatars.discourse-cdn.com/v4/letter/m/a587f6/32.png) [@MikeInNH](https://community.cartalk.com/u/MikeInNH)\ **Post date:** [March 7, 2008, 3:33pm UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/11 "2008-03-07T15:33:10Z")
When ever I replaced the timing belt on my pathfinders I replaced the tensioner every OTHER time. On some vehicles it might be a good idea every time. ---
**Author:** ![arby23](https://avatars.discourse-cdn.com/v4/letter/a/b5e925/32.png) [@arby23](https://community.cartalk.com/u/arby23)\ **Post date:** [March 10, 2008, 5:13pm UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/12 "2008-03-10T17:13:40Z")
90K miles. Thank you all for your replies. I am going ahead and getting a used engine for the car. ---
**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\ **Post date:** [March 10, 2008, 5:49pm UTC](https://community.cartalk.com/t/jammed-tensioner-pulley/11521/13 "2008-03-10T17:49:43Z")
A used engine will require the same timing belt change. If the shop which installs the used engine tells you that everything is “FINE”, they’re either mistaken, or lying (choose one). If timing belt replacement can’t be proven, with supporting documents, then, it HASN’T been changed. A completely re-manufactured engine may be the cheapest way to go. OR, bye bye car. It’s tough to choose one way or, the other.