Air Ride Compressor ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SCOTI · 10-22-2006, 07:27 PM

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?

10-22-2006, 07:27 PM	#1
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 21,938	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? __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*



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