Last post on Nov 12, 2013 at 7:50 AM
You are in the Ford Expedition
What is this discussion about?
Ford Expedition, Suspension, SUV
#116 of 133 Re: Ford Expedition 1998 deflate air suspension system [skinautique]
Sep 02, 2011 (11:32 am)
Yes, there is an easy way, and you don't have to even get under the chassis to do it. Simply jack up one end of the truck until the tires (both front or both rears) are just touching the ground, but firmly enough to still leave some weight on the suspension. That last part is important. You don't want the wheels to be entirely off the ground. Some weight on wheels is necessary so the air springs don't become distorted. Do this with the air suspension switch in the "on" position. What you are doing is fooling the leveling system into deflating the air bags in an attempt to level the truck.
If the engine's been off for more than about 40 minutes or so, you may need to start the engine, put your foot firmly on the brake, and shift in and out of gear a few times, just to get the air suspension to turn on again. When you stop the engine, you should hear the clicking of the solenoids and a gentle release of air from the air bags. This may cycle on and off for a few minutes with the truck parked and jacked up just as described.
Come back in a few minutes, and gently press on the sides of the air bags with your fingers. You should find them nice and soft at this point. Don't let the suspension all the way down in this condition, or the bags may come loose from their footings and/or lose shape. Be sure to support the truck with jack stands if you intend to slide yourself under the chassis.
When re-inflating the system, take the truck off of the jack stands and bring the jack down to where the truck is approximately level, then start the engine the same as when you deflated. The bags will now inflate to approximately normal level, and the jack can be removed. The system may continue some leveling adjustments to bring everything to a proper height.
#117 of 133 Clarifications on Delating air springs
Sep 02, 2011 (11:37 pm)
I should clarify a couple of statements I made regarding the procedure for deflating the air springs on an Expedition.
First of all, you should jack up the end of the truck on which you intend to deflate the air springs. So if you intend to deflate the rear air bags, you must jack up the rear of the truck, and correspondingly the front of the truck for the front air springs, if so equipped.
Secondly, when re-inflating it would be useful to lower the truck to a little lower than level on the end you intend to re-inflate, rather than approximately level as I originally wrote. That will prompt the system to raise the truck by re-inflating the bags.
#118 of 133 Re: aired out expedition [bradexpedition]
Sep 16, 2011 (8:34 am)
I have the same problem did you ever figure out how to fix it?
thanks for any info.
Sep 28, 2011 (7:16 am)
I have a 4x4 2004 Expedition with a problem in the air suspension. I'll try to expalin it as best I can. The vehicle passenger side front will lower completely down. The truck leans like it has a flat tire. The compressor runs as normal ,a few seconds in the morning, but doesnt pump up the passenger front side. If I put the the vehicle in 4WL, it will pump everything back to normal and will stay that way until driven. I don't think it has a leak because the compress don't run more than a few seconds like always and the fact that the bags seem to hold air until I drive it.
#120 of 133 Re: crazy air ride [ricks2524]
Dec 04, 2011 (5:36 am)
hi i have the same problem on my 1998 expedition did you find the problem thanks
#121 of 133 Re: After conversion to springs, how do you turn off the check susp light? [nae1060]
Jan 15, 2012 (7:17 am)
either take the light bulb out like I did or take the fuse for the air ride out
#122 of 133 Re: 2001 Expedition Eb Air Ride Sus. [01fordeb]
Apr 03, 2012 (9:52 am)
So, 01fordeb, it has been a year since you did the conversion. How is your EB Exp riding? Do the monroe coils keep the back end up nicely? Do you ever haul a healthy load and do the coils handle it well? I did the conversion with the moog coils and have to say it is better than dealing with the air suspension problems, but the moog coils are marginal in my opinion. The back end sags, especially with any kind of load. I want to replace the coils with something beefier and eliminate the sag. Assuming you are still positive on the conversion, can you tell me what model monroe coils you have?
#123 of 133 Re: Low Cost Coil Conversion for Ford Expedition [airconman]
Apr 03, 2012 (10:05 am)
Okay, 9 months after converting my '97 Exp to the moog coils in the rear I am finding the truck sags too much in the back. Has anyone had a better experience with different coils? and if so, with what brand and model? I am happy to not be dealing with air bag system problems but I want a better load handling coil than the moog coils I have on now...
Thanks for any help!
#124 of 133 Air suspension..
Apr 20, 2012 (4:06 pm)
hi i have problem with my 98 expedition air suspension,i will try to describe it as possible..
# when i start the truck the compressor kicks in and work prefect the front and rear air shock works to its level then compressor stops..i barely hear the compressor again when the truck is moving or running i guess its a good sign....
# then notice when i turn off the engine i heard couple clicking sound coming from the rear and my rear end starts to go down about 1 to 2 inches then stops.. IS THIS NORMAL???
#then after whole day off not running the rear end drops and rear driver side sits on the tire and the rear passenger aside almost sits on the tire..IS THIS NORMAL JUST FOR COUPLE OF HOURS THE REAR END DROP??? IF NOT HOW LONG WOULD IT LAST UNTIL THE REAR END DROPS?
#then i turn off the switch still the rear end drops,so there must be something wrong with it....
#Where can i start looking for for the problem? need help...ty
#125 of 133 Re: 2001 Expedition Eb Air Ride Sus. [airconman]
Jul 23, 2012 (7:14 pm)
I just put the monroe 90010 coil spring conversion kit on my 98 expedition after my air springs failed. I found that the back end sits up about 1 to 2 inches higher than the front and am looking for a solution. Did your moog springs keep the back end up on yours at first before it started to sag? I also hooked a heavy camper trailer to the back of my expedition and it only sagged about 2 inches