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I have a 2000 Navigator with the lls. The check suspension dash light is on. The rear axle sags. I replaced the compressor, compressor relay (twice), and replaced a level sensor that the electric board looked brown, replaced all fuses (all looked good but was worth a try). I took it to a Lincoln shop and they wanted to replace the module. Talked to another shop and they said modules rarely if never go bad. I have the relay harness jumpered with a switch to manually turn the compressor on. Compressor runs fine, and will lift the rear end. The rear axle bags stay inflated for a day or two before I have to air up again, slow leak I guess. Is there a way to test the relay, or is something else out. I tried disconnecting the battery to reset the system. I'm lost.
Last edited by orange_x_crush; Mar 13, 2006 at 06:31 PM.
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