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  1. 2014-2019 CTS General Discussion
    My 2018 Cadillac CTS V6 (non turbo) just popped a U1963 code. just over 26k miles, purchased GM Certified Used a year ago. There doesn't seem to be much on the internet about this code, possibly a communication problem with an injector or EGR stuck high. I haven't noticed any running issues...
  2. Seville and Eldorado Forum
    Just got my new 99 STS home and found this code: DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage. Does this mean a thermostat is needed or is the sensor bad? I wonder because my brother who has now driven the car more than me reports the heater isn't heating up.
  3. FWD DeVille 1985-2005, Fleetwood, and 60 Special
    I've never been too good navigating through our forum. Been a Caddi man all of my 60 years. I've owned well over 19 old school beasts, plus an Allante. Good luck trying to find an old school crest and wreath 'Heritage of Ownership' badge. Currently, I own a beautiful 1996 DeVille with less than...
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