1998 Navigator suspension

[vm354]

I searched the fourms quite a bit and did not find this among the symptoms that people were experiencing. I have been having problems with my air suspension for years. I have taken care of this by turning off the suspension, letting it run until the compressor died, etc...

I poked around the truck while the compressor was running and noticed that there was a hissing sound coming from the drivers side of the engine compartment. Happens more when the compressor is running and diminshes when it stops. When the truck sits in the driveway the drivers side sags a lot more than the passenger side. The air bags look intact on the rear.

Anyone else experience this?

Thanks in advance.

VM

[Fordace]

VM, I'll look into this tomorrow, I've heard of cracked dryers or dryers coming loose from the connector at the orings on the bottom. Did you notice or take a look at the dryer yet?

Rich

[vm354]

Rich,

Thanks for the reply.

I did not look at the dryer. Honestly, I do not know where to find it. I will do some research and try to take a look at it. Let me know what you find out.

Regards,

VM

[Fordace]

Ford info below


Some 1997-2002 Expedition 4X4 and 1998-2002 Navigator 4X4 vehicles equipped with 4-wheel air suspension, may exhibit repeat air compressor drier failures. The drier cap may become detached from the drier body, or the drier body may be broken at the neck near the compressor head. This may be due to incomplete or incorrect system diagnosis that leads to replacement of only the original air suspension compressor, despite the fact that the compressor is not the root cause of the concern. Compressor failure in these instances is only a symptom of an underlying system problem.

If the vehicle does not raise and lower normally, check the solenoid valves and air lines for blockages and/or restrictions. Replace any blocked or restricted solenoids and air lines.

You may have to bring it to the dealer if this is over your head.......


http://img215.imageshack.us/img215/7000/dryer29cf.gif


http://img215.imageshack.us/img215/7537/dryer6bd.gif



The dryer is attached to the compressor at positions 1 and 22.........Rich


http://img215.imageshack.us/img215/6310/viewcomponets7fn.gif

[ November 10, 2005: Message edited by: Fordace ]