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Old 10-22-2006, 07:27 PM   #1
SCOTI
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Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,066
Air Ride Compressor ?

My 68 has been on hiatus for a while now. I've been piecing the front suspension back together lately & this weekend I actually sat it back on the ground & off the jackstands.

I'm using a manual fill system w/no solenoids so it's just the air-tank, comp, lines & gauges. I wanted to adjust the rear of the truck to my typical ride height (30~35psi air) but when I went to add some air to the rear bags they just deflated even more instead of adding air.

The batt is out of the truck so I tried using jumper cables from my 74 over to the 12v lead that went to the comp but it doesn't work. The fuses are good & I re-checked the ground. For whatever reason, the comp won't kick on to supply air to the tank. I wound up yanking the discharge line from the compressor & installed a schrader valve to manually fill the air tank from my home compressor. Once the air tank had pressure, I was able to add air to the rear bags w/o issue.

The comp worked w/o any issues earlier this year. What's stopping it from coming on now? What would be more likely: bad pressure switch or bad compressor?
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