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Coil Tester
How to Remove the Rear Shock From a Lincoln Town Car!
The Lincoln Town Car's air suspension uses a small, separate air compressor under the driver's side left fender well, with air lines running to the air bags. On the top of each air bag is a electrical valve. This is a relief valve that allows air to be exhausted when activated, and which senses the amount of air pressure within the air bag to keep both sides equal.
These valves are operated via a leveling sensor that is attached to the body of the car and to the rear axle by a movable arm. When the rear of the car drops due to increased load, the arm is pushed up. When the arm is pushed up, it turns on the air compressor and fills the air bags to level the car. When the load is removed and the arm moves down, indicating that the back of the car has risen, the sensor opens the valve on the air bags and allows air to escape, lowering the car.
If the back of the car is low, indicating that the air suspension is not working, and the air suspension light is on, check the fuse first. If the fuse is all right, check the air suspension switch in the trunk and make sure it is on. This switch is used when the car is in for service. Always turn off the switch before lifting the car, because the sensor will think the car is rising and keep the air bag valves open, ruining the rear air suspension.
Turn the ignition key with the engine off. Listen for the compressor to come on while pushing down on the rear bumper. If it does not come on, test the switch terminals for power, using a circuit tester. If one terminal has power and the other does not, replace the switch. If there is power, turn the switch to the off position, raise the vehicle and place it on jack stands in the rear. Inspect the leveling switch on the axle, making sure it is not bent and is connected. Use an ohmmeter for this test. Pull the electrical connector off the switch.
Loosen the arm of the switch from the axle. Test the switch with the ohmmeter by checking across both terminals while slowly moving the arm. There should be no continuity with the arm down. As the arm is raised, there should be continuity. If not, replace the switch. If there was continuity, connect the arm and the electrical connector.
Put a floor jack under the axle and raise the axle to the point where it is just beginning to lift the car off the jack stand. Turn on the ignition. Turn the air suspension switch to the "on" position. Use the circuit tester to check for power at the leveling switch. If there is power, turn the air suspension switch to "off" and lower the car. Access the air compressor in the front, under the hood, and check the electrical connector for power. If there is power, check for a good ground. If both are good, replace the compressor. If the compressor works and the car does not rise in the back, replace the air bags.
About the Author
AirSuspension.com supplies the automotive world with air suspension solutions . We also provide both replacement air ride suspension parts, including air springs, air struts, compressors, air bag suspension and dryers, and conversion kits that, convert your car to high quality passive suspension systems.
Air shocks, air springs, air struts and other air ride suspension parts wear out. We give you the option of replacing them with top quality passive suspension parts or replacement air suspension parts engineered to fit your specific application. We have been designing and building suspension kits and conversions since 1999 when we produced our first Lincoln air suspension kit. We maintain a fleet of test cars equipped with factory air suspension systems that we try out all of out new products on.
Air suspension is a type of vehicle suspension powered by an engine driven or electric air pump or compressor. This pump pressurizes the air, using compressed air as a spring. Air suspension replaces conventional steel springs. If the engine is left off for an extended period, the car will settle to the ground. The purpose of air suspension is to provide a smooth ride quality and in some cases self leveling.
Will Leaving the key on on my Yamaha Warrior fry the points?
ok. i left the key on on my quad one night. now for some reason there is no power to the coil. what would cause this? i have charged the battery, and it turns over no problem, but there is just no power getting to the coil(i tested it with my electrical tester). i know that it is a very low voltage. but on my other quad it still showed up on the tester. so what would cause this? did i ruin my cdi box or something? what do i need to buy to fix it?
For future reference, always give year, make, engine size and model # when asking questions. We need all of that info to give an informed answer.
Sometimes the year can make a difference.
The battery is not used in the ignition circuit, so leaving the key on would not fry any electrical components.
Unplug the kill switch.
Follow the trouble shooting procedures in the service manual.
http://www.motocom.com/motorcycles/
Chainsaw Ignition Coil Test