Well, the main and most common symptoms of a leaking or failed air suspension a sagging rear end. Other major clues are that your air compressor isn't working or is running way too often. Another pretty common tip off of a problem air suspension is your Grand Marquis's inability to reach or maintain recommended height.
One of our customer's vehicles:
Not Good! See how low this vehicle is riding?
Failure to repair your Mercury Grand Marquis suspension system can also lead to some major safety issues, such as an air spring blowing while doing 75MPH could send the car into a spin. Really, really not good.

A faulty air suspension can cause loss of work, car rental, towing bills, excessive repair costs (especially by big car dealerships) and in general can be very frustrating and inconvenient to say the least. Bottom line: it can cost you big bucks.
"Why Did My Grand Marquis Rear Air Suspension Fail?..."
The Mercury Grand Marquis front & rear air suspension systems are subject to a lot of troubles, but it's greatest enemy is time. The air spring is made with rubber parts that dry-rot in 5 to 7 years. The Grand Marquis air suspension's longevity is set by how extreme heat and cold the Grand Marquis is subjected. These weather conditions and how you drive your vehicle will degrade the parts of the air suspension system. A lot of times the electronic devices begin to fail with age. This will just intensify the other problems related to the Mercury Grand Marquis air suspension.
Notice the cracks in the air bag?
Also overlooked many times on the Grand Marquis is the condition of the front suspension. As time goes by, the Grand Marquis suspension is subject to extreme wear and the sagging poor shocks and spring quality will make it difficult to properly align. This will cause excessive wear to the tires and eventually ruins the great ride you deserve as a Mercury Grand Marquis owner. So, not only do you get to fix the air suspension system, you also get to buy tires more frequently than you should.
This will really make you ride low...
"But, There's Good News..."
You can avoid these high costs and the frustration by installing the Strutmasters Ultimate Ride Conversion Suspension System developed specifically for your Grand Marquis. Our suspension solution replaces your Grand Marquis rear air suspension with the highest quality, lifetime warranted coil suspension system. All of the components in this conversion kit were designed and manufactured in the United States and are made of the very highest quality material.
When installed, you will not only be safe once again, but you will have that new ride feel as we put our Total Ride Satisfaction Promise on our air to non-air conversion kits. We know that you will love the ride in your Grand Marquis suspension and you're gonna love the dependability of this conversion kit.
Wow! Now Look At An Actual Customer Car With A Strutmasters Conversion Kit:
That's more like it! Now it's sitting at the correct height.
We offer a Lifetime Warranty on our air to non-air conversion kits. With our Strutmasters Warranty, we will even replace any of our suspension parts free of charge for any damage over the life of the vehicle.
No one else offers this level of service and quality. We have over 260,000 happy customers who have been using our suspension system every day for over 10 years. We get tons of letters and e-mails every month thanking us for making this exclusive Rear Air Suspension Conversion Kit available for your Mercury Grand Marquis.
People tell us how great it is to have that new car ride back again and know that they can get many more years of use from their Grand Marquis and have the confidence of being safe on the road. Do what thousands of others in your shoes have done and Beat The Air Ride System by ordering your Strutmasters Ultimate Ride Conversion Suspension Kit today.
Take a look at what our satisfied and happy customers have to say about the Mercury Grand Marquis Strutmasters Conversion Kit: Scroll down to see what some of our customers have had to say.
"What The Dealer Won't Tell You..."
With the insider information I know today, I can assure you that the OEM parts will always fail and are just another way for car dealers to "line their pockets" at your expense.
"Dealerships Have Used This Dirty Little Trick For Years..."
The dealerships and parts dealers want you to buy replacement parts because they know that your other air suspension and electronic parts are bound to fail in the very near future, forcing you to continue to buy more and more air suspension replacement parts over time.They make a killing as you grow more and more frustrated!
The stark reality is that luxury car & SUV owners like you, have been left in the dark. These replacement parts are expensive and in most cases it will be necessary for you to pay a dealership a huge wad-of-cash to install them. Further increasing the cost to get your ride fixed. Many times, you will also have to rent a car because the dealership will take days to get your air suspension working properly.
The worst part about this whole situation is that you don't have a car, the dealership takes forever to fix your ride and then the dealership will use that against you and magically find lots of other parts that “have” to be fixed. You know because it's happened to you before or to someone you know.
Don't fall for their trap...it's not pretty once they have you. They will be laughing all the way to the bank. Don't let these guys take your hard earned money. You have another option, and Strutmasters had done all the hard work for you.
"5 Great Reasons To Act Now" LIFETIME WARRANTY
LOW PRICE GUARANTEE
MADE IN THE USA
QUICK & EASY INSTALLATION
FRUSTRATION ELIMINATED FOREVER! |
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We 100% Guarantee Your Satisfaction
Upon your order, we can even provide you with one of our approved installers that are local to you and have agreed not charge more than 1 hour per wheel for labor. This is one of our easiest installs and has been done by many "Do It Your Selfers". If you can do brakes, you can do this...No Sweat!
Our suspension kits are always in stock and will usually ship the same day that you place your order. You will receive a confirmation email with delivery tracking to your door.
Chip "The Strut Man" Lofton

Grand Marquis Conversion Kit Frequently Asked Questions (FAQs)
1. What height will the vehicle sit at?Answer: The vehicle will sit at standard ride height.
2. Is there any hardware with the springs?Answer: No. There is no hardware needed. The springs are designed to wrap around your top and bottom hubs. They lock themselves into place once the vehicle is lowered. This is one of our easiest kits to install.
3. Do I really need the shocks?Answer: The shocks are a very important element in the comfort of your ride. They act as stabilizers for the vehicle (gives the rear stability). Over time the hydraulic system wears out of if they have been collapsed on the excessive weight. If shocks are worn or bad it will cause you to have a bouncy ride.
4. Why is going with your conversion kit better than staying with my air ride?Answer: Our conversion kit eliminates your failing active suspension system and puts you on a reliable passive standard suspension system. Your air system will continue to give you problems but our conversion kit guarantees that you will never spend any money again on your suspension and our conversion kit will not compromise the quality of your ride.
5. What are all of the components in my air ride system?Answer: The components include air bags, a compressor, the dryer, solenoids, air lines, the module, height sensors, and the relay. All of which could be bad and will fail.
6. What is the #1 cause for the air system going out?Answer: The leading cause of the air system failing is the air bags leaking. The air bags are what lift and lower the car and where they fold over at the bottom they start to dry rot. This forms tiny pin holes in the air bags and makes the compressor work overtime to keep the vehicle up, thus causing the compressor to burn out as well.
7. Why are your coil springs better than your competition's?
Answer: Our coil springs are custom engineered for your specific application and are powder coated to prevent rusting and squeaking. Some of our competitors will use springs for other applications and just reheat them to make them work. Our coil springs are made in the USA and most of our competitors get their coil springs from China.
8. What’s the largest size wheel I can put on the vehicle if I convert to your system?Answer: We recommend no more than 20 in. wheels with a low profile tire.
9. Will I be able to disable the service air suspension ride light off the dash?Answer: We send detailed instructions for installation and disarming instructions for your service air suspension ride light. We tell you where to access the module and what wire to cut to disarm.
Other General Frequently Asked Questions (FAQs)
1. How will my car ride with a conversion kit installed?
Answer: The kits are designed to give you a dependable, smooth ride, at factory recommended ride height. Many customers say the kits actually improve the handling and cornering on their vehicles. We have more than 250,000 conversion kits on the road and our customers love them.
2. Can I tow a trailer?
Answer: A vehicle converted with a Strutmasters conversion kit will tow the same capacity as it did with the original suspension.
3. How hard is it to install?
Answer: Our thousands of authorized repair shops have told us this:
"If you can do a brake job, you can install a Strutmasters conversion kit." They also tell us the conversion kits are easier to install than most of the original air suspension parts. Most shops will charge about 1 hour per wheel.
4. What modifications will I have to make to the vehicle?Answer: Our conversion kits are designed to bolt right onto your vehicle with no welding, cutting or modifications. Simply remove the old air suspension parts and bolt on the conversion kit.
5. How do I get the warning light off?
Answer: Our conversion kits come with detailed instructions for installation – and almost all of our kits include steps on how to bypass any electronics and suspension warning lights.
6. How long will the conversion kit last?Answer: All Strutmasters conversion kits come with a lifetime warranty. They are designed to last for the life of your vehicle. Our conversion kits eliminate your air suspension problems forever!
7. What makes you better than the competition?
Answer: Some of our competitors use inferior Chinese steel and other Chinese parts. Customers and shops have spoken and prefer the quality and durability of our parts, which are made and assembled in the United States.
Some of our competitors use coil springs “off the shelf” and modify them for a particular vehicle. Reheating a steel coil spring is very bad news because it makes the spring brittle and leads to failure.
8. What if I don’t have the money to convert the entire vehicle?
Answer: Strutmasters understands that you work hard for your money. Our owner, Chip Lofton, knows that vehicles seem to pick the worst possible time to need repair – his car failed while on vacation. Therefore, Strutmasters offers two-wheel conversion kits on as many vehicles as possible. We also offer a special savings for customers who convert all four wheels.
9. Why should I convert my suspension if I do not plan to keep the car?
Answer: A Strutmasters conversion kit may help you fall in love with your vehicle all over again! If not, a conversion kit will pay off when you decide to sell it. A vehicle with a good ride sells for more money and you will not be hearing back from the new owner complaining that you sold them a lemon.