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What kind of suspension does my 2003-2006 Ford Expedition 4WD have?

The 2003-2006 Ford Expedition 4WD is built with the following suspension components:

2003-2006 Ford Expedition 4WD Air Springs (x2)- commonly referred to as air bags, a plastic and rubber bag that is fitted on top of the strut that uses pressurized air as a cushion instead of a metal coil spring to hold a vehicle off of the ground and off of its wheels. These are the number one cause of all air suspension leaks. All air springs all go bad at about the same rate. If one is leaking, the others will not be far behind. For a proper repair, all of them need to be replaced at the same time.

2003-2006 Ford Expedition 4WD Coil Springs (x2)- Coil springs hold the vehicle up but be careful, they are rated for and designed to work with the rest of the suspension system, so when you change air shocks to passive shocks, then you will need a different rated coil spring that works well with the new type of shocksshock.

2003-2006 Ford Expedition 4WD Torsion Bar- on some 4x4 models. Adjustable horizontal bar on the front of the vehicle that holds the vehicle off the ground.

2003-2006 Ford Expedition 4WD Shock Absorbers- a metal tubing filled with gas-charged hydraulic fluid that is connected to the wheel of a vehicle in order to reduce the effects of vertical travel on a rough surface which controls the bounciness, and therefore comfort, of a vehicle.

2003-2006 Ford Expedition 4WD Air Lines- tubes that run from a compressor (air suspension) to the air struts which carry pressurized air to the air bags components in order to adjust the height of the vehicle, respectively.

2003-2006 Ford Expedition 4WD Compressor- This vehicle is equipped with one air suspension compressor. The compressor is responsible for pumping up the air springs and shocks. When the air suspension starts leaking, the compressor is forced to run continuously to try and keep the air springs inflated. After a couple of days of running non-stop, the compressor will burn itself out. Replacing the compressor is a timely and expensive project to undertake.

2003-2006 Ford Expedition 4WD Dryer Assembly- This vehicle is equipped with a dryer assembly. The dryer assembly is responsible for getting moisture out of the air lines. Once the air suspension parts start to leak, moisture will build up throughout the air system. Moisture damages the air suspension components from the inside out. The dryer must be replaced whenever the compressor is replaced to prevent further damage.

2003-2006 Ford Expedition 4WD Suspension Control Module- This vehicle is equipped with a suspension control module. This module is the brain of the suspension system and it reads all of the signals that are being sent by the height sensors and determines if the vehicle needs to be raised or lowered.

2003-2006 Ford Expedition 4WD O-rings- Although they are the least expensive parts of the air suspension, they are responsible for maintaining the seal where all of the air lines connect. Be sure to replace the O-rings when repairing any air suspension system.

How Do I Know If My 2003-2006 Ford Expedition 4WD Air Suspension Is Failing?

There are a couple of distinctive things to check for when trying to diagnose whether or not the air suspension on your 2003-2006 Ford Expedition 4WD is failing or has failed. A clear sign of suspension failure is a difference in the height of the front and rear of the vehicle. Ordinarily with this vehicle, the rear will fail first causing the vehicle to look like it is squatting down in the rear. Another sign of a failing suspension is the suspension warning light on the instrument cluster. Another sign would be the air suspension compressor running too long (The compressor should never run more than 15-20 seconds) or not at all and visible cracks in the rear air springs caused by dry rot.

Why choose the Conversion Kit over replacing the air suspension system on your 2003-2006 Ford Expedition 4WD?

We have already seen the assortment of parts that construct the air suspension system. Our conversion kit gets rid of having to depend on all of those parts functioning correctly and in sync. This conversion kit consists of (2) pre-assembled front coil over struts with progressive rate springs (2) pre-assembled rear coil over struts with progressive rate springs. It normally only takes about an hour per wheel for installation, and is designed for DIYers! The conversion not only saves you time and frustration, it saves you lots of money. Now let’s take a look at the cost difference between choosing an air vs. a non-air suspension system. Here, we are going to compare three prices: the price for repairing your air suspension system at the dealer, the price for installing aftermarket air suspension parts on your vehicle, and the price of getting rid of the faulty air ride heartache and installing a brand new suspension conversion kit for the rear of your vehicle:

2003-2006 Ford Expedition 4WD Dealer Replacement Parts:

+ Front Air Springs ($837/air spring)

+ Rear Shocks ($253/shock)

+ Coil Springs ($189/spring)

+ Compressor and Dryer Assembly ($270)
= TOTAL: Over $2,820 (and that doesn’t even include replacing electronic components that are known to fail such as the height sensors).

Our 2003-2006 Ford Expedition 4WD Conversion Kit:

+ 2 Complete, Pre-Assembled Front Coil Over Struts With Progressive Rate Springs

+ 2 Complete, Pre-Assembled Rear Coil Over Struts With Progressive Rate Springs

+ Detailed Installation Instructions

+ Over-The-Phone Technical Support And A One Year Warranty = Only $499 (plus s&h).

5 Great Reasons To Act Now

  • Conversion Kits Save You Money
  • One Year Warranty
  • Quick And Easy Installation
  • Made In The USA
  • Frustration Eliminated Forever!

What Are You Waiting For

For questions or to order over the phone, call:

(866) 597-2397

What kind of suspension does my 2003-2006 Lincoln Navigator 4WD have?

The 2003-2006 Lincoln Navigator 4WD is built with the following suspension components:

2003-2006 Lincoln Navigator 4WD Air Springs (x2)- commonly referred to as air bags, a plastic and rubber bag that is fitted on top of the strut that uses pressurized air as a cushion instead of a metal coil spring to hold a vehicle off of the ground and off of its wheels. These are the number one cause of all air suspension leaks. All air springs all go bad at about the same rate. If one is leaking, the others will not be far behind. For a proper repair, all of them need to be replaced at the same time.

2003-2006 Lincoln Navigator 4WD Coil Springs (x2)- Coil springs hold the vehicle up but be careful, they are rated for and designed to work with the rest of the suspension system, so when you change air shocks to passive shocks, then you will need a different rated coil spring that works well with the new type of shocksshock.

2003-2006 Lincoln Navigator 4WD Torsion Bar- on some 4x4 models. Adjustable horizontal bar on the front of the vehicle that holds the vehicle off the ground.

2003-2006 Lincoln Navigator 4WD Shock Absorbers- a metal tubing filled with gas-charged hydraulic fluid that is connected to the wheel of a vehicle in order to reduce the effects of vertical travel on a rough surface which controls the bounciness, and therefore comfort, of a vehicle.

2003-2006 Lincoln Navigator 4WD Air Lines- tubes that run from a compressor (air suspension) to the air struts which carry pressurized air to the air bags components in order to adjust the height of the vehicle, respectively.

2003-2006 Lincoln Navigator 4WD Compressor- This vehicle is equipped with one air suspension compressor. The compressor is responsible for pumping up the air springs and shocks. When the air suspension starts leaking, the compressor is forced to run continuously to try and keep the air springs inflated. After a couple of days of running non-stop, the compressor will burn itself out. Replacing the compressor is a timely and expensive project to undertake.

2003-2006 Lincoln Navigator 4WD Dryer Assembly- This vehicle is equipped with a dryer assembly. The dryer assembly is responsible for getting moisture out of the air lines. Once the air suspension parts start to leak, moisture will build up throughout the air system. Moisture damages the air suspension components from the inside out. The dryer must be replaced whenever the compressor is replaced to prevent further damage.

2003-2006 Lincoln Navigator 4WD Suspension Control Module- This vehicle is equipped with a suspension control module. This module is the brain of the suspension system and it reads all of the signals that are being sent by the height sensors and determines if the vehicle needs to be raised or lowered.

2003-2006 Lincoln Navigator 4WD O-rings- Although they are the least expensive parts of the air suspension, they are responsible for maintaining the seal where all of the air lines connect. Be sure to replace the O-rings when repairing any air suspension system.

How Do I Know If My 2003-2006 Lincoln Navigator 4WD Air Suspension Is Failing?

There are a couple of distinctive things to check for when trying to diagnose whether or not the air suspension on your 2003-2006 Lincoln Navigator 4WD is failing or has failed. A clear sign of suspension failure is a difference in the height of the front and rear of the vehicle. Ordinarily with this vehicle, the rear will fail first causing the vehicle to look like it is squatting down in the rear. Another sign of a failing suspension is the suspension warning light on the instrument cluster. Another sign would be the air suspension compressor running too long (The compressor should never run more than 15-20 seconds) or not at all and visible cracks in the rear air springs caused by dry rot.

Why choose the Conversion Kit over replacing the air suspension system on your 2003-2006 Lincoln Navigator 4WD?

We have already seen the assortment of parts that construct the air suspension system. Our conversion kit gets rid of having to depend on all of those parts functioning correctly and in sync. This conversion kit consists of (2) pre-assembled front coil over struts with progressive rate springs (2) pre-assembled rear coil over struts with progressive rate springs. It normally only takes about an hour per wheel for installation, and is designed for DIYers! The conversion not only saves you time and frustration, it saves you lots of money. Now let’s take a look at the cost difference between choosing an air vs. a non-air suspension system. Here, we are going to compare three prices: the price for repairing your air suspension system at the dealer, the price for installing aftermarket air suspension parts on your vehicle, and the price of getting rid of the faulty air ride heartache and installing a brand new suspension conversion kit for the rear of your vehicle:

2003-2006 Lincoln Navigator 4WD Dealer Replacement Parts:

+ Front Air Springs ($837/air spring)

+ Rear Shocks ($253/shock)

+ Coil Springs ($189/spring)

+ Compressor and Dryer Assembly ($270)
= TOTAL: Over $2,820 (and that doesn’t even include replacing electronic components that are known to fail such as the height sensors).

Our 2003-2006 Lincoln Navigator 4WD Conversion Kit:

+ 2 Complete, Pre-Assembled Front Coil Over Struts With Progressive Rate Springs

+ 2 Complete, Pre-Assembled Rear Coil Over Struts With Progressive Rate Springs

+ Detailed Installation Instructions

+ Over-The-Phone Technical Support And A One Year Warranty = Only $499 (plus s&h).

5 Great Reasons To Act Now

  • Conversion Kits Save You Money
  • One Year Warranty
  • Quick And Easy Installation
  • Made In The USA
  • Frustration Eliminated Forever!

What Are You Waiting For

For questions or to order over the phone, call:

(866) 597-2397