View Full Version : Air Suspension
Brentster
11-10-2022, 10:15 AM
I had a friend help me replace the Rear Shocks a month ago, and after the shock install the rear suspension pumped up. Normally when I start the car I can here the compressor doing its thing, but now I am not hearing anything, of course this is on the 1st startup for the day. I know something is up since when I go over bumps I can feel it in the rear.
I guess you have to figure with an 18 year old car that you will have some issues. There are no check engine lights, could this be a fuse, where should I start looking. If the air suspension is not working does this mean I will wear out my shocks sooner than later?
offroadkarter
11-10-2022, 05:55 PM
Check the ride height sensor on the watts link. As they age and corrode, they get stiff which can lead to the linkage from the watts link to the sensor popping off. If this happens, your system will not pump up.
Don't ride around on the bump stops, you'll end up damaging the shocks and possibly the bags if you do it long enough.
crouse
11-10-2022, 06:07 PM
Did you shut off the system by shutting off the switch in the trunk?
Brentster
11-11-2022, 08:24 AM
Did you shut off the system by shutting off the switch in the trunk?
I did not know there was a switch in the trunk.
gdmjoe
11-11-2022, 09:58 AM
Brentster - I did not know there was a switch in the trunk.
When replacing the rear shock absorbers if the rear wheels were left to hang (suspension fulled extended), AND the air suspension system switch in the trunk wasn't turned -OFF- there's a good chance that there's damage that's been down to the system.
*.Excerpt from the owner's manual below.
.
Brentster
11-11-2022, 12:55 PM
When replacing the rear shock absorbers if the rear wheels were left to hang (suspension fulled extended), AND the air suspension system switch in the trunk wasn't turned -OFF- there's a good chance that there's damage that's been down to the system.
*.Excerpt from the owner's manual below.
.
Thanks, the shocks were replaced with the car on the ground, basically jacked 1 side up took the tire off and then replaced the shock, then put the tire back on and went to the other side. Is there a fuse for this air system?
Hg M75
11-11-2022, 06:15 PM
If the switch was on and the rear jacked up with the wheels hanging wouldn't the system just think the rear is too high and vent? Worst case scenario it has to refill the air springs.
alumarine
11-12-2022, 08:45 AM
Thanks, the shocks were replaced with the car on the ground, basically jacked 1 side up took the tire off and then replaced the shock, then put the tire back on and went to the other side. Is there a fuse for this air system?
The air suspension has to be turned off even when doing it this way.
I'm not sure what your problem is.
Is the rear of the car sitting on the bump stops?
alumarine
11-12-2022, 08:59 AM
If the switch was on and the rear jacked up with the wheels hanging wouldn't the system just think the rear is too high and vent? Worst case scenario it has to refill the air springs.
I think that's true.
Trouble is it's a lot of work for the compressor to fill them that much.
The one time I forgot to turn the switch off the rear end went all the way down when I took it off the jacks.
I jacked the car up to near ride height and then let the pump fill them,
Brentster
11-12-2022, 03:05 PM
The air suspension has to be turned off even when doing it this way.
I'm not sure what your problem is.
Is the rear of the car sitting on the bump stops?
The Rear of the car is sitting fine, my issue is when I hit a bump it feels like I do not have shocks. The compressor did turn on for a few seconds last night. When we did the shocks the air suspension did take awhile to pump up but it did. I think this is more of an issue with the sensor that is on the rear axle on the drivers side. I am going in for a wheel alignment on Monday and I will have the place take a look at everything.
1Marauder
11-13-2022, 07:41 AM
Did you replace your shocks too?
alumarine
11-14-2022, 07:36 AM
The Rear of the car is sitting fine, my issue is when I hit a bump it feels like I do not have shocks. The compressor did turn on for a few seconds last night. When we did the shocks the air suspension did take awhile to pump up but it did. I think this is more of an issue with the sensor that is on the rear axle on the drivers side. I am going in for a wheel alignment on Monday and I will have the place take a look at everything.
It sounds like the springs are fine if the ride height is good.
Maybe it's the shocks?
1Marauder
11-15-2022, 11:40 PM
Again, did you replace the rear shocks to Too? I used KYB and the rear is a lotiilt too firm.
blazen71
11-16-2022, 06:03 AM
Sounds like you're just not used to having rear shocks that work?
Brentster
11-16-2022, 01:09 PM
Sounds like you're just not used to having rear shocks that work?
You may have a point, after replacing the shocks the ride is a bit harsh, before the shock replacement the air springs were pumping up every time I first started the car in the morning. In the last month they only pumped up 1 time when I pulled the car out. Realistically if the air helper springs were shot the car would probably be sitting a bit lower?
SilverPhoenix
11-16-2022, 01:18 PM
You may have a point, after replacing the shocks the ride is a bit harsh, before the shock replacement the air springs were pumping up every time I first started the car in the morning. In the last month they only pumped up 1 time when I pulled the car out. Realistically if the air helper springs were shot the car would probably be sitting a bit lower?
What type/brand shocks did you install? If the air compressor was kicking on every time at startup before shock replacement and it hardly does it now, sounds like you needed new shocks. I had new shocks installed on my MM 8-9 years ago and the air compressor kicks on at startup only if it's been sitting for 3-4 days. I also remember it seemed like it was riding 'stiff' right after the install, but either I got used to it or was just imagining it riding stiffer...
justbob
11-16-2022, 01:42 PM
Only one little problem with some of these diagnostics. Shocks have absolutely zero to do with holding a car up.
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Brentster
11-16-2022, 01:48 PM
What type/brand shocks did you install? If the air compressor was kicking on every time at startup before shock replacement and it hardly does it now, sounds like you needed new shocks. I had new shocks installed on my MM 8-9 years ago and the air compressor kicks on at startup only if it's been sitting for 3-4 days. I also remember it seemed like it was riding 'stiff' right after the install, but either I got used to it or was just imagining it riding stiffer...
I needed new shocks since the car is 18 years old and 1 of them was leaking. I guess I will get used to it riding harsh. I got the Monroe Shocks, there best brand so to speak, I still have the box in the garage so I will update later.
blazen71
11-16-2022, 02:52 PM
If your car is sitting at the correct ride height, I would not be concerned on how often the pump is running, especially if it runs less.
As far as shock selection for Marauders, I personally think ALL the standard aftermarket stuff sucks. After trying a couple of them with dissatisfaction, I coughed up the coin and bought Ridetechs. They are soooo much better and have lifetime warranty thru Fox Racing. But brand of shock is probably moot for the OP at this time.
crouse
11-16-2022, 03:15 PM
If you bought rear shocks for a Crown Vic or Grand Marquis, they are a lot softer than the Marauder shock. I made this mistake.
SilverPhoenix
11-16-2022, 03:54 PM
I needed new shocks since the car is 18 years old and 1 of them was leaking. I guess I will get used to it riding harsh. I got the Monroe Shocks, there best brand so to speak, I still have the box in the garage so I will update later.
That's the brand I had installed, Monroe Super or Severe Duty...yellow in color.
crouse
11-16-2022, 05:45 PM
I think that's your problem. I bought those exact same shocks and realized right away they were too soft. I sold them on Craigslist and bought KYB 555603 shocks. Rock Auto has them for $55.79 each. I knew tight away when i removed the Monroe shocks and installed the KYB's. I could hardly push the KYB shock in to get it installed whereas the Monroe's pushed in rather easily.
SilverPhoenix
11-16-2022, 06:45 PM
I think that's your problem. I bought those exact same shocks and realized right away they were too soft. I sold them on Craigslist and bought KYB 555603 shocks. Rock Auto has them for $55.79 each. I knew tight away when i removed the Monroe shocks and installed the KYB's. I could hardly push the KYB shock in to get it installed whereas the Monroe's pushed in rather easily.
The Monroe's I had installed have been perfectly fine and not 'soft' at all; in fact, I thought they were stiff at first. When did you buy/install yours?
justbob
11-16-2022, 07:06 PM
If you bought rear shocks for a Crown Vic or Grand Marquis, they are a lot softer than the Marauder shock. I made this mistake.
I think that's your problem. I bought those exact same shocks and realized right away they were too soft. I sold them on Craigslist and bought KYB 555603 shocks. Rock Auto has them for $55.79 each. I knew tight away when i removed the Monroe shocks and installed the KYB's. I could hardly push the KYB shock in to get it installed whereas the Monroe's pushed in rather easily.
Did you even read the first post? His complaint was a harsh ride, not soft.
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justbob
11-16-2022, 07:11 PM
The Monroe's I had installed have been perfectly fine and not 'soft' at all; in fact, I thought they were stiff at first. When did you buy/install yours?
Agree. But for what they are I couldn’t complain. I mean they are listed as severe duty so..
My only issue was they didn’t agree with the front coils that I cut 14 years ago. They started off fine but the more she settled (quite low) the more hard and sloppy they got. Not the shocks fault, just they owner who decided enough was enough with the money pit that I basically repurchased twice.
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Brentster
11-18-2022, 06:12 PM
The Monroe Shocks I got were the 5993 shocks, they are the OE Shocks, and as others have said I did here the air ride pump up last night, only for a few seconds My issue is when I go over bumps I really feel it, Maybe I just need to drive the car some more and see what happens. I had to replace the rear shocks since 1 of them leaked out like crazy when I pulled into my driveway.
TooManyFords
11-19-2022, 04:05 AM
I was always vocal about the harsh ride of my new Marauder, and you can search here and see how I originally fixed it. Fast forward to 2022 and on my 6th Marauder DD, I opted to put the coilover conversion from ADTR on the car with new Metco control arms and watts link. The best part of the coilover setup is the Ridetech adjustable shocks on all 4 corners! Now it rides *exactly* how I want it to. Expensive? What is the cost of comfort? Sorta like projector headlights, what is the price of hitting a deer?
blazen71
11-19-2022, 09:01 AM
The best part of the coilover setup is the Ridetech adjustable shocks on all 4 corners! Now it rides *exactly* how I want it to. Expensive? What is the cost of comfort? Sorta like projector headlights, what is the price of hitting a deer?I couldn't agree more, on both. Panther Lights posted a video I sent him where I flashed my brights on a country road at night and a deer clearly ran off.
offroadkarter
11-19-2022, 11:00 AM
As far as shock selection for Marauders, I personally think ALL the standard aftermarket stuff sucks. After trying a couple of them with dissatisfaction, I coughed up the coin and bought Ridetechs. They are soooo much better and have lifetime warranty thru Fox Racing. But brand of shock is probably moot for the OP at this time.
100% this. All of the aftermarket shock replacements are bottom barrel cheap crap. Bilstein was never interested in offering a 03+ panther shock but they make an offering for the -02 cars, simply because it cross references with a ton of various Fords going back to the 50's. I'd be a bit iffy with how well the ridetechs would hold up through years of salt but I guess enough people are on coilovers these days, my car hasn't seen a winter in well over a decade.
Sorta like projector headlights, what is the price of hitting a deer?
Hope that means you're enjoying the lights I slapped together for that car :D, I haven't forgotten about the spare wheel lock keys I've just been a bit busy/distracted
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