|
Conversion Kits Aftermarket conversion kits for the older cars with air ride suspensions have become a hot item in recent years because the kits provide a repair solution for vehicles that might otherwise be too expensive to fix. read more... |
Performance Possibilities A whole new generation of younger vehicle owners are spending serious money these days customizing sport compact cars. The hot nameplates are Honda, Accord and Mitsubishi, but you'll also see Chevy Cavaliers, Ford Focuses and other nameplates among their ranks. read more... |
|
Air Ride Basics Understanding the operating logic of an air ride suspension system is important when trying to make a diagnosis because all of these systems are different. If you don't understand the logic, you can't always tell if the system is functioning correctly or not. read more... |
Lincoln Logic On the older Lincoln systems, the control module monitors ride height for up to an hour after the ignition is turned off, venting pressure as needed to maintain correct ride height. During this time it will lower, but not raise the vehicle. read more... |
|
Air Ride Problems Air suspension problems fall into one of three categories: Electrical, Electronic and Air Supply. One of the leading causes of compressor failure is air leaks (usually in the air springs or lines). read more... |
General Service Precautions The first thing to keep in mind when servicing vehicles with electronic air suspensions is to watch out for those that are self-leveling - especially if the vehicle is going to be raised on a lift to change the tires or work on the brakes. read more... |
Luxury Car Suspension Conversion Kits -some background
Aftermarket conversion kits for the older cars with air ride suspensions have become a hot item in recent years because the kits provide a repair solution for vehicles that might otherwise be too expensive to fix. For example, a set of four new OEM air struts and a compressor for a 10-year-old 1994 Lincoln Continental retail for around $3,500. Add in the installation labor and it adds up to a lot of money to spend on a car that is worth maybe $2,500. The same car could be converted to a regular coil spring suspension for around $500 to $600 in parts, and it would probably be a lifetime repair (no future air leaks, compressor failures or electronic glitches to worry about).
On a Lexus, the numbers are even higher. The OEM air struts list for $1,100 per wheel! If the compressor also needs to be replaced, the parts bill alone is around $5,800. By comparison, a conversion kit for this vehicle typically sells for less than $800 and includes struts for all four wheels.
The only tradeoff of installing a conversion kit is that a vehicle will no longer have a cushy air ride suspension or be self-leveling. For many owners, that's no big deal because many people say air ride suspensions are overly soft and allow too much wallow when cornering. They would actually prefer a firmer handling suspension. Others, though, might be reluctant to trade their air ride suspension for a conventional suspension. Even so, most of these people will probably realize it makes more sense to convert the suspension than to sink a pile of money into a car that has already depreciated so much in value.
The ironic part about all of this is that some people will gladly spend thousands of dollars to transform their vehicle into a pavement scraping "low rider" while others moan and complain about having to spend so much to fix their unintentional low rider because the air suspension has gone flat.
One other change that is usually required when converting an air ride suspension is to disable or "fool" the system module. Procedures vary depending on the application, but may require removing a fuse, cutting a wire or splicing a resistor into a strut wiring harness to trick the module into thinking a solenoid or height sensor is still there when it is not. Make sure to review the conversion kit's instructions or check other sources like manufacturer TSBs. Not following the proper procedures can effect other systems controlled by the body control module.
