Rear shock failure
Have a 2003 freightliner DP chassis. Both rear shocks were 7 years (70000 miles) when I noticed that both shocks had the piston rod become disconnected inside the shock rendering them useless. Anyon...
Forum Discussion
I found this Koni Warranty:
"PASSENGER CAR, LIGHT TRUCK & MOTORHOME: KONI North America LLC warrants all new KONI shock absorbers (purchased after 5/1/1980) and suspension kits (purchased after 1/1/1995) to the original retail purchaser for use in the United States and Canada against defects in materials and workmanship, excluding mounting hardware and bushings, when used under normal operating conditions for as long as the original purchaser owns the vehicle registered for street use on which the KONI shock absorbers were originally installed. This warranty does not apply to, and KONI makes no warranty for, shock absorbers and suspension kits that have been:
Not purchased new by the current owner.
Modified or installed improperly.
Bent or broken indicating abuse.
Supplied as Original Equipment on any vehicle except 1984-1986 Ford Mustang SVO.
Used on any vehicle that has been modified for a use other than or in addition to its originally intended use.
Used for an application that is not specified in the KONI literature.
Used on any vehicle for racing, off-road, or other driving competition.
Exported for use outside the United States and Canada."
My conjecture is this: Shock Absorbers should control suspension motion but should NOT be expected to limit that motion. In other words the suspension should bottom out onto something in its design (like a snubber or bumper) leaving some free travel in the shocks. Likewise, something other than the shock should be the topping out limit, other than the shocks. Sp my premise is that based on how your coach's suspension is, the Shocks are either: 1. Too Short Topped or 2. Too Long Bottomed. If the rest of the suspension is right, I'd venture it has the wrong Shocks on it.
I don't understand "from new" but it seems if they were furnished with the Chassis, not under warranty. If you installed them after purchasing the coach, should be covered.
"PASSENGER CAR, LIGHT TRUCK & MOTORHOME: KONI North America LLC warrants all new KONI shock absorbers (purchased after 5/1/1980) and suspension kits (purchased after 1/1/1995) to the original retail purchaser for use in the United States and Canada against defects in materials and workmanship, excluding mounting hardware and bushings, when used under normal operating conditions for as long as the original purchaser owns the vehicle registered for street use on which the KONI shock absorbers were originally installed. This warranty does not apply to, and KONI makes no warranty for, shock absorbers and suspension kits that have been:
Not purchased new by the current owner.
Modified or installed improperly.
Bent or broken indicating abuse.
Supplied as Original Equipment on any vehicle except 1984-1986 Ford Mustang SVO.
Used on any vehicle that has been modified for a use other than or in addition to its originally intended use.
Used for an application that is not specified in the KONI literature.
Used on any vehicle for racing, off-road, or other driving competition.
Exported for use outside the United States and Canada."
My conjecture is this: Shock Absorbers should control suspension motion but should NOT be expected to limit that motion. In other words the suspension should bottom out onto something in its design (like a snubber or bumper) leaving some free travel in the shocks. Likewise, something other than the shock should be the topping out limit, other than the shocks. Sp my premise is that based on how your coach's suspension is, the Shocks are either: 1. Too Short Topped or 2. Too Long Bottomed. If the rest of the suspension is right, I'd venture it has the wrong Shocks on it.
I don't understand "from new" but it seems if they were furnished with the Chassis, not under warranty. If you installed them after purchasing the coach, should be covered.
