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Tires, Wheels, Brakes, Steering and Suspensions Discussion of preventative/corrective maintenance and other technical issues regarding your coach's Tires, Wheels, Brakes, Steering and Suspensions and related components.

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  #1  
Old 06-24-2011
rjtoles rjtoles is offline
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Default Popping noise

Does anyone have any suggestions as to what the following noise description could be. When I turn going down the road, say making a left had or right had turn and the weight of the buss shifts i hear a popping noise. The noise seems to be coming from the chassis under the front seats. I know there is some sort of stabilizer bar, there could that have loose bolts. Are there bushings some where that could be bad?
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Old 06-24-2011
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Ron, Lot of posts about that radius rod. The rod ends are available at most truck parts supply. Got mine through Car Quest. You may have a loose mounting point. My guess is worn Rod ends and bolts.
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Old 06-24-2011
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NH Bill NH Bill is offline
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Ron and Mary,

Noise front or rear? Could be parhard rod issue it is a common problem.

There are stabilizer rods (Panhard Rod) at front and rear. The rear is the one that typically fails dut to too soft bolts. Bushings deteriorate and bolts will get sloppy and then sheer. Potentially dangerous. Get bolt/bushing kit and get switch it out.

Search for this in the forum lots of info and photos too.

NH Bill
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Old 06-24-2011
rjtoles rjtoles is offline
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Thanks for the info. Is this something that can be done in a driveway or should I take it to the diesel shop? Should I be worried about driving it back home to Kansas city from Eureka Springs AR?
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  #5  
Old 06-24-2011
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Ron & Mary,

Does your coach go down the road without you having to always be turning the steering wheel to maintain direction? The steering gear is mounted to a plate, then more plates to the frame. The bolts holding all this together do come loose. Suggest getting under the coach and tighten all the bolts. Put wrenches on the bolts/nuts...not just a visual inspection. Our FC bolts were all loose...up to three rotations to tighten them. Worth checking.
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Old 06-24-2011
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The rear is a real nasty place to work. The rod is up over the bell housing and bolts can be difficult. Need a 20 ton press to get the bearings in there. A shop that is set up for this can get it done in 1-2 hours.

Here is a photo of the rebuild kit and part # (roughly $20) also a photo of the rear rod curbside with old sheered bolt in place and no bushing.

NH Bill
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Last edited by NH Bill; 06-24-2011 at 07:42 PM.
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  #7  
Old 06-24-2011
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NH Bill NH Bill is offline
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Quote:
Originally Posted by rjtoles View Post
Does anyone have any suggestions as to what the following noise description could be. When I turn going down the road, say making a left had or right had turn and the weight of the buss shifts i hear a popping noise. The noise seems to be coming from the chassis under the front seats. I know there is some sort of stabilizer bar, there could that have loose bolts. Are there bushings some where that could be bad?
opps, I just reread your post. You did state the nose is up front. Even so the info I provided on the rear panhard is useful and if you have not inspected it is a good idea.

NH Bill
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  #8  
Old 06-24-2011
rjtoles rjtoles is offline
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My guess is that it is the pan hard rod, I had been suspecting that it was loose. I will probably take it into the diesel shop and have them do it. Although I have the skills to do the job with out an adequate shop to work in it's tough. I envy you guys with the fully equipped shops.

My coach does take a bit of working the wheel when we are moving down the road. Especially if there is a cross wind or if the weight shifts it has a tendency to float. Would this get better if the bushings are bad and they get replaced?
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Old 06-24-2011
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Depending on where your leveling jacks are mounted, you may find the front panhard bolts cannot be removed. They were put in before the jacks were installed. You need to loosten them and saw the heads off, then remove from the other end. To re-install just put the bolts in from the front.

Here are two pics of the front Panhard rod bolts.
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Old 06-24-2011
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Randy Dupree Randy Dupree is offline
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do the front and back panhard bushings,it will help.
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