Vibration front end

LINLEY

MEMBER
2007 HYUNDAI SANTA FE
2.7L
6 CYL
2WD
AUTOMATIC
580,000 MILES

Left Missouri to drive my car (258,000 miles) to Washington hauling my 1989 13' Scotty camper, just under 2000 lbs. (Have been hauling for seven years; no problem). New tires and outer tie rods replaced before trip. After crossing the Great Divide in Colorado a vibration started in front end, progressing to the point it started to scare me. Worse between 40-55 mph. Better at 60 which is my top speed on this trip to save gas. Three mechanic stops later I'm in Washington but haven't seen my car for a week +. First stop in Spanish Forks all converters and 1 sensor replaced. $2,700.00. Not fixed. Finally had to stop in LaGrande Oregon. Replaced bearing assembly unit (can't remember what called)? He showed me on lift how wheel was too loose? First mechanic paid for it $623.00. Third mechanic in Oak Harbor Washington. Car has been in shop since I got here. Mechanic is determined to figure it out, but has not done so yet. Replaced CV axles, intermediate shaft (definitely needed), checked tire balancing and rotors. Nothing. He is stumped. Monday taking to get alignment checked. Before I left had four brand new Michelin's put on. No problem until Great Divide. I believe something happened coming down.
Thank you so much for helping me. Don't know what to do.

3 Replies

KASEKENNY

MECHANIC
18,907 POSTS

Hi Linley,

Unfortunately, too many mechanics guess at what a vibration could be based on what it feels like. I would ask that they use a vibration analyzer.
Most do not have them and relay on their guessing ability but as you know, guessing is expensive.

A vibration analyzer will tell them what the system is that is causing the vibration. They will get what is called a hertz reading and then with that, the RPM, and speed they should be able to tell if it is a wheel/tire, engine, driveshaft/axles, or something else. Without this information, we are guessing just like they are but they have the luxury of at least driving the vehicle.

Based on what you said happened, it sounds like you have a steering component that has failed. It is unusual for a bushing or something to give out so suddenly and not be able to find the issue quickly.

Even though you said they put new tires on it, did they do what is called road force balance them? I am wondering if you have a broken belt in the tire. Just balancing the tire may not show this however, a road force balance will show it. They should be able to inspect them as well and make sure there is no bulge on the sidewall (inboard or outboard) or in the tread. This would happen pretty suddenly and could explain the issue.

Let me know what they say and I am happy to be a sounding board for their ideas. Thanks

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Sunday, June 2nd, 2019 AT 7:19 PM

LINLEY

MEMBER
2 POSTS

Thanks so much. The front end alignment guys said it was out almost an inch. All are thinking the weight of pulling my 1,900 lb loaded camper is raising the front just enough to make it go out of alignment. For the moment it is better. They want to replace most of the parts underneath. Sure, they could be. They all have 258,000 miles on them! But what's the point! I am looking for another vehicle. In your opinion, do you think the minivans such as Odessy or Sienna can pull my Scotty? I really would like a van and the mechanic I talked with said it was not a good idea even though they say they can pull 3,500 lbs. Thanks. Linda

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Friday, June 7th, 2019 AT 9:39 AM

KASEKENNY

MECHANIC
18,907 POSTS

3,500 lbs is a pretty significant load to tow for an extended period. If you just tow it around town every once in a while, I am sure these vans would be just fine. However, if you are going to tow it the distances you mentioned earlier, I would suggest something that can put up with that constant weight. You are correct that the spec is up to 3,500 lbs for both vans but this is the maximum that it can do.

If I can use an analogy, think about how much weight you can lift. Most people can lift a box up to about 50 pounds and carry it for a little while. If you are moving it out to your garage, you may not even need to put it down, but if you have to carry that same box to a neighbors house, you may not be able to make it without a break or even at all.

Your vehicle is no different. If you are towing for long distances at the maximum it can handle, it is going to get worn out quickly.

If it were me, I would look to a small SUV or a crossover where your max towing is about 5,000 lbs. This way, your 3,500 lbs trailer is no issue.

Hopefully this helps. Thanks

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Friday, June 7th, 2019 AT 6:53 PM