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05-31-2011, 04:05 PM
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#1 | |
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AF Newbie
Join Date: Nov 2007
Location: Surrey, B.C.
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C1770, c1790, c1818, c1850
My 98 Windstar Limited has air suspension in the back. Lately, it would be sitting low in the back before starting it up in the morning. The compressor would pump it up as soon as you fired up the van. And the rest of the day would be fine. The other day, the warning light for the air suspension came on, and the compressor has not worked since. Fuses and power connections all seem okay. OBD codes C1770, C1790, C1818 and C1850 were in the system. Is anyone here familiar with these codes and therefore what the problem may be? Meanwhile, the winnie is now a lowrider! (Hmm ...!) Thanks to all who reply!
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06-06-2011, 02:53 PM
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#2 | |
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AF Newbie
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Re: C1770, c1790, c1818, c1850
Anyone?
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06-06-2011, 06:43 PM
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#3 | |
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TOKEN HILLBILLY
 
Join Date: Mar 2005
Location: Lexington, Kentucky
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Re: C1770, c1790, c1818, c1850
C1770 Air Susp Vent Solenoid — Circuit Failure
C1790 LR Air Spring Solenoid — Circuit Failure C1818 Air Comp Req — Exceeded Max Timing C1850 Air Suspension Warning Lamp Circuit — Circuit Failure Probably one of the solenoids or wiring and possibly a blown light bulb in the dash. Those should also cure the C1818
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Being way2old is why I need help from younger minds The sooner you fall behind the more time you'll have to catch up.  HEY Y'ALL--READ THIS Here are some of our old vehicles for sale. 
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10-08-2011, 03:58 PM
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#4 | |
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AF Newbie
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Join Date: Nov 2007
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Re: C1770, c1790, c1818, c1850
A belated thank you to Way2Old for your help. (Love your photo, by the way. Its a hoot!) As an update for future readers of this thread, the compressor for the air suspension had failed. New compressors are just not available from Ford or after market. There are a number of sources for rebuilt ones. And after fixing the compressor, it was only a matter of time before the airbags, lines, or solenoids for the air ride system failed. So to avoid future problems, we have converted to a coil spring suspension.
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