Tell your Air Suspension conversion story here please.
Logistics Pro
Joined: Jan 2001
Posts: 3,740
Likes: 37
From: Central NYS
i have a 2000 Expedition and the air system was shot so I used the Monroe kiet 90010 and now when driving it cold the front is bouncy but seems to get better as you drive. Like the shocks in front warm up. But the worse is when you corner seems to really lean and if you hit a bump when cornering you better hang on to the wheel.?
That, combined with the VSS (Vehicle Speed Sensor) gives the Air Ride Module enough information so that it can close the solenoid valve between the two front air springs and close the solenoid valve between the two rear air springs.
Typically the two solenoid valves are open. In this condiction, say the right front wheel hits a bump. The open solenoid valve permits the air pressure in the right front air spring to be pushed out and over to the left front air spring, resulting in a softer ride on the right front wheel, and then the air pressure from the left front air spring rushes back into the right front air spring helping to keep the right front wheel quickly return to the ground.
If you were to turn quickly at speed and the solenoid valve between the left and right air spring was open, as the weight of the vehicle shifts to the outside of the turn, the air would rush out of the outside air spring, lowering that side of the vehicle, and the air would rush into the inside of the turn air spring, raising up the inside of the vehicle, causing exstream lean angles.
By having the Air Suspension Module close that solenoid valve during a sudden turn, that isolates the left and right air spring, and minimizes vehicle lean. The vehicle acts like it has a 2 inch sway bar, which would make for a very hard ride when going straight down the road.
For those that have full working air suspension, turn the air suspension off and experiment with a guick swerve at speed. Just be sure you have a good grip on the wheel and no one is near you.
4wd Low
Joined: Oct 2016
Posts: 14
Likes: 0
So what does that mean for no air?
I thought there might be something going on with the suspension that gets messed up when changing to regular springs and shocks.
So you seem to know alot about the system...what do you suggest one does about this cornering problem with out the "system"?
Can a bigger sway bar be put in?
What have others done about this problem?
So you seem to know alot about the system...what do you suggest one does about this cornering problem with out the "system"?
Can a bigger sway bar be put in?
What have others done about this problem?
5th Wheeling
Joined: Dec 2017
Posts: 44
Likes: 0
Where is the rear solenoid
Where is this located. I’m not finding any leaks so now I’m wondering if this could be it
6th Gear
Joined: Jan 2025
Posts: 6
Likes: 0
From: Russia, Moscow
I replaced both front and rear air bags to shocks. Took about 5 hours total. I did remove the tie rods when I was changing out both front and rear. I used a small bottle jack to help lower the front A arms down enough to get bolts installed. On the rear I removed the bolt with my 3/4" impact and a 1-3/16" socket. I then used a 5 foot spud bar to and the wife to lower the A-arms and let me align the bolts. I am now trying to get the EVO/ VAPS to work correctly. Any one else have issues after conversion?
Did you have navigator 2nd or 1st gen?
What was your problem and did you fix your VAPS?
Trailering
Joined: Jan 2007
Posts: 16
Likes: 3
From: Centerburg,OH
No unfortunately didn't, Navi was wrecked 3 months later. Culvert removed full axel and oil pan.
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