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Hello! I have a 1990 Cadillac Deville, 4.5L V8 PFI, 75,068 Miles. Today I was driving and all of a sudden the SERVICE ENGINE SOON light came on and both the Fuel In Tank and Electronic Climate Control read outs started showing a “d”. (See pictures in links below). https://i.imgur.com/urkMrQF.jpg https://i.imgur.com/jnIw9xU.jpg https://i.imgur.com/VXwOqxk.jpg Gallery On top of this the Air conditioning fan started blowing air from the dash, not hot or cold, just ambient temperature air and I can’t change the Climate Control or see the fuel level anymore. When I got home I unhooked the battery to reset it then turned the ignition on without starting the car and pressed “Off” and “Warm” on the climate control so see if I could get a code it looked like a code flashed (to fast for me to read), then it read 000 and would blink over to .7.0 occasionally. I replaced some vacuum hoses that were kind of bridle as well as replaced the o-ring that goes between the air filter housing and the carburetor since it was cracked. I hooked the battery back up and the dash read-outs still showed “d”, SERVICE ENGINE SOON light, and the air was still blowing from the dash. I called around and neither Auto Zone or O’rilleys has the OBD 1 connector to scan the older (pre 1996) cars. The car runs great so it’s hard to trouble shoot whats going on, and I cant find anything at all online about this specific problem. Any ideas or suggestions?
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- deville
- error codes
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