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rich

  1. 2.3NotchLX

    2.3 In cabin Exhaust fumes

    1987 Ford Mustang 2.3 runs rich and temperature won't move past 140 degrees. The electric fan turns on as soon as the car does and doesn't turn off. In cabin exhaust fumes get stronger on the highway. I have replaced the thermostat, water pump.
  2. J

    Car running extremely rich with rough idle 1987 Ford Mustang gt 5.0 five speed.

    I’ve had my car for a few months and I’m just trying to get it running good. I bought it from a guy who had the engine gone through by a shop. It’s got a bunch of new parts on it. It has new heads, new cam, new headers, new intake along with small other things. I just say new because I’m not...
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