Question about 2003 Hyundai Accent

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Check engine light problem

Check engine light turns on and off frecuently, I got a code for the coolant sensor but it's new. Does somebody have an answer?

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  • mshamidee Oct 20, 2008

    I have a 2003 Hyundai Accent GT. 33,000 miles. Just paid the damn thing off. Up until now. I haven't hada single problem except replacing tires. It starting hesitating. After about a week of that the engine light came on and stayed on. I had my son replace the spark plugs, check fluid levels, replaced the air filter and he checked other things as well and all seemed to be ok. I know it needs belts. They squeak and still runs rough. It taps but always has. Hyundai said that was natural (?). Had a similar problem with my 99 accent but eventually the light went out on its on. I'm afraid now I'm going to go from my reliable little car to the car from hell.

    Diane Hamilton

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Have you checked the level of the coolant and the oil. genrally an intermittant light means a level problem.

Posted on Aug 31, 2008

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I did have a problem on one of these cars one time where the Check Engine light was coming on and there were several codes for the Throttle Position Sensor(TPS) and the Manifold Absolute Pressure (MAP) sensor and the car ran really bad. The Check Coolant light was also on. After checking it out I found that the coolant level sensor was shorting out the 5 volt reference circuit (VREF) from the computer and causing the whole problem. Replacing the coolant level sensor fixed the car.

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The Thermostat and the sensor are both very easy to get to and replace. Take off the engine cover by removing the oil cap and they are both to the rear of the engine on the driver's side. They are right next to each other.

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CODE 15 - Engine Coolant Temperature (ECT) Sensor Circuit (Low Temp.)
It's no surprise that your mileage was affected, damage to the ECT sensor will affect proper operation of the fuel injection system.
41877841

REMOVAL


  1. Relieve engine coolant system pressure.
  2. Turn ignition to "OFF".
  3. Disconnect electrical connector.
  4. Carefully back out ECT sensor.
INSTALLATION


  1. Coat threads (only) with sealer.
  2. Install sensor in engine, torque to 30 N-m (22 lb.ft.).
  3. Connect electrical connector.
  4. Refill lost coolant.

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If the problem stay there, just change your coolant sensor.

Good luck, and remember rated this help.

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