dumpsterguy840
Member
- Joined
- Mar 22, 2011
- Messages
- 34
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My 2005 Lincoln Town Car
had a problem with the suspension lowering while driving and while sitting with the suspension switched on. When the suspension was switched off while at trim height then it did not lower at all so the air springs and solenoids are fine. A Ford diagnostic showed that the air suspension module could not be accessed to run the self test diagnostic but the dealer tech ignored this critical info that the module was probably faulty and instead diagnosed the suspension height sensor (mounted between the driver side watts link and the frame) as being the problem. Replacement of the height sensor ($500 incl $110 for diagnosis, $270 for part and the rest for labour to install the part) did not resolve the problem. Replacement of the air suspension module ($200 part) was easy and fixed the problem. The new module could only be found at Ford dealer or online Ford dealer but did not need to be programmed by the dealer, it works right out of the box. Easy to replace, drop the glove box (no tools needed) 2 screws that held it in and two wiring harness plugs that were easy to unplug. After installing the new module I let the car sit over night with the system turned on and in the morning she was still at the same height so it appears that the problem has been solved.
had a problem with the suspension lowering while driving and while sitting with the suspension switched on. When the suspension was switched off while at trim height then it did not lower at all so the air springs and solenoids are fine. A Ford diagnostic showed that the air suspension module could not be accessed to run the self test diagnostic but the dealer tech ignored this critical info that the module was probably faulty and instead diagnosed the suspension height sensor (mounted between the driver side watts link and the frame) as being the problem. Replacement of the height sensor ($500 incl $110 for diagnosis, $270 for part and the rest for labour to install the part) did not resolve the problem. Replacement of the air suspension module ($200 part) was easy and fixed the problem. The new module could only be found at Ford dealer or online Ford dealer but did not need to be programmed by the dealer, it works right out of the box. Easy to replace, drop the glove box (no tools needed) 2 screws that held it in and two wiring harness plugs that were easy to unplug. After installing the new module I let the car sit over night with the system turned on and in the morning she was still at the same height so it appears that the problem has been solved. 
