Jayco Seneca Suspension problems by year

Tl* the contact owns a 2019 jayco seneca. The contact took the vehicle to long island freightliner (1365 lakeland ave, bohemia, ny 11716) to be repaired because the bearings failed. The motor home was then taken to an independent mechanic to have a spacer bolted that held the control arm hanger bearing. The manufacturer was notified of the failures. The motor home was still not repaired. The approximate failure mileage was 4,700.

While on a trip to florida, the rear of the motorhome was sagging and swayed terribly over un-even pavement and in wind gusts. Upon my return home, I did some research and figured that the chassis is undersprung causing handling and safety issues. The manufacturer has upgraded the springs on identical model coaches from 15,000 lb springs to 19,000 lb springs at no charge. This was a design / build issue, not a faulty part. I phoned jayco who admitted that they had made this correction to other coaches, but were no longer doing so. It would appear to me that a recall should have been done to correct the design / build flaw. *Tr