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post #1 of 2 (permalink) Old 06-18-09, 08:05 AM Thread Starter
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Air Suspension Compressor

I just got an 99 Navigator a couple of weeks ago. When I first drove it I would hear the air suspensiob compressor come on for short perioeds. Now it seems to run alot of the time I'm driving the car. The height of the car seems OK.

How much should it run? Is running alot an indication of a developing problem?

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post #2 of 2 (permalink) Old 06-25-09, 07:50 PM
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Re: Air Suspension Compressor

It comes down to suspension duty. If the vehicle is driven on a gravel road for instance or one with lots of holes, the suspension will have to recover itself (use more air) than it would if you were traveling down a smooth interstate.

If the compressor kicks in often, and for extended periods then you might have a slow leak. The best way to diagnose yourself is to get a spray bottle, fill it with a cup of red hand soap and soak the lines, bags, everything that has air going through it. If you see any bubbles, then you'll know you have a small leak. If you don't see anything, I'd keep driving it until it becomes worse yet. Last thing you'll want to do, is to take it into a shop, so they can spray it with hand soap for you!

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