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Loose harmonic balancer?

W

wikisi9

New member
Hey folks,

I have a 06 grand prix gxp with 255,000 miles on it. It broke down on me today after work. As soon as I started up my engine, I heard my belt slip loudly. I turned off the engine, opened the hood and noticed the harmonic balancer had moved out of alignment with all the other pulleys by a good 3/4" or so, throwing off my serpentine belt.

I looked at it to see if maybe the bolt holding the balancer came loose, but it doesn't look like it. I didn't use a wrench to check it or anything though. I'm too tired to mess with it today. Any suggestions what I should look/check for tomorrow? What's the usual culprit in such a case?
 


wikisi9 said:
Hey folks,

I have a 06 grand prix gxp with 255,000 miles on it. It broke down on me today after work. As soon as I started up my engine, I heard my belt slip loudly. I turned off the engine, opened the hood and noticed the harmonic balancer had moved out of alignment with all the other pulleys by a good 3/4" or so, throwing off my serpentine belt.

I looked at it to see if maybe the bolt holding the balancer came loose, but it doesn't look like it. I didn't use a wrench to check it or anything though. I'm too tired to mess with it today. Any suggestions what I should look/check for tomorrow? What's the usual culprit in such a case?
Click to expand...


This is an old post but has some info that could be helpful to you. Good luck. post back your results.

http://ls1tech.com/forums/ls4-perfo...-balancer-prices-where-buy-install-notes.html
 
Before I go and buy a new balancer, I wanna make sure it is in fact the balancer that's broken. On the other hand, what else could it be? Is there an easy way to check without having to take off the passenger wheel, brakes, etc?

Thanks for the link.
 
take the wheel off and look at it, if you can wiggle it or push it around its busted, the outer part the belt rides on tends to break off.
 


Well... it's definitely the harmonic balancer. I pulled on it with bare hands and the outer piece that belt rides on came right off.

Problem now is.. how do I get it off. Mine doesn't have the small holes for bolt type puller. I has 3 oblong holes. I'll need a jaw type puller I guess.
 
iirc you v8 guys can use a 3 jaw puller.

still gonna need a air gun to get the bolt off. or red neck it via the starter.
 
a breaker bar off the crank bolt a jack stand and crank the starter over. bolt comes free. check you tube, search redneck crank bolt removal.

disable fuel or spark so it cant run.
 
Thanks. I'll check youtube.

Here's a pic of the HB. It's broken alright. LOL

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Yeah I found it. Basically, it said to put jacks under subframe, loosen bolts on passenger side all the way, and bolts on driver side an inch or so. Then slowly lower subframe on passenger side till the HB clears the body. And to make sure there's no binding/pinching/whatever as you lower subframe. They removed alternator and battery as well.

After this post I'm going to get a Harmonic Balancer from Rock Auto and I'll probably install it next weekend.
 
jack stand under the cars body, not the sub frame, if under the frame you can lower it. you want a jack under the sub frame, then take the bolts out, then lower the jack.
 
Oops, I worded it wrong. I mixed what I'm going to do with what it said in the how to. I'm going to place jack stands under the sub frame and use a fork lift to raise the body.
 
sad to say, but i highly dislike your idea.

body on jack stands makes every thing solid to the ground, stuff moves on a chain.
 


Well, part of using a fork lift is because I feel safer being underneath a car when it's held up by a fork lift instead of resting on jack stands.

Plus I'm not using a chain. The car is sitting on the forks.
 
id never trust a fork lift to hold stuff up either. and your not under it really. your reaching in to it via the wheel well.

oh, and to do what your saying,,,well look at the big picture here. whats the forks lifting on? yup the sub frame. scrap this plan, use jack stands and a floor jack.
 
Yeah I didn't check this morning if where I lifted the car is part of the sub frame. Guess it is. Dangit. Alright, you win :-)
 
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