Vesta Front end wobble

[GregR]

Hello, I'm new to the forum and hoping someone can help with a major problem I am having with a 2011 Vesta. I have now had 6-8 experiences with major front end wobble, I guess better known as a "death shake". I have 16,000 miles and am experiencing this now every time i hit a bump with the front end. I have taken it to two mechanics, the first couldn't find a problem, the second went through everything, balance, alignment and changed the Drag Link, same problem driving it home from the dealer. It is so bad now its unsafe to drive. Any input would be much appreciated.
Greg

[GraySeal65]

I find it hard to believe at 16k there would be something mechanical wrong with it. A lot of motorhomes have the castor jacked way up to make them handle better you may be experiencing castor shimmy (like a bad shopping cart wheel).

[GregR]

Thanks for your reply, you have made a good description of the problem, a bad shopping cart wheel.
I am not experienced in working on this type of front end, could you give me a quick explanation of a fix for this.
Thanks again

[GraySeal65]

Caster is one of the alignment measurements.





On a solid axle it is set by placing wedge shaped shims in between the axle and the spring.
A lot of positive caster will make steering easier and force the wheel to center but to much can cause a shutter or shimmy.
You will need to know where it is and what the spec for that vehicle is so another trip to the alignment shop is necessary.