CAR START BUT DIE RIGHT AWAY WHEN IS COLD WEATHER

  • Tiny
  • joseviz1979
  • 2002 Saturn SL2
  • 165,000 miles

Hello there I got a saturn sl2 2002 run great when is warm weather but on the mornings whenthe weather is cold the engine start but it die right away no sure what could be the problem

Tuesday, October 9th, 2012 AT 11:01 PM

21 Answers

  • Tiny
  • saturntech9
  • Expert
  • 28,824 posts

Sounds like a bad coolant temp sensor and possibly bad connector. Do ever have to hold the gas pedal to the floor to start it?Any codes in the computer?

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Tuesday, October 9th, 2012 AT 11:08 PM
  • Tiny
  • joseviz1979
  • Member

Holding the gas pedal to the floor work for a couple time now when I do it it dont start at all wihtout holding it start but die right away sometimes the security light come on but go away soon adn I havent take to scaner yet

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Tuesday, October 9th, 2012 AT 11:28 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,824 posts

I would change the coolant temp sensor also inspect the inside of the coolant temp sensor connector if the terminals are green or blue instead of silver replace the connector also. As far as the security light on thats a seperate issue. You will need to have a advanced scan tool scan your body control module for codes.A basic obd2 reader/scanner wont read the body control module.

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Tuesday, October 9th, 2012 AT 11:39 PM
  • Tiny
  • joseviz1979
  • Member

Ok I will try that thanks

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Tuesday, October 9th, 2012 AT 11:45 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,824 posts

Your welcome keep me posted.

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Tuesday, October 9th, 2012 AT 11:47 PM
  • Tiny
  • joseviz1979
  • Member

Hello there well I replaced the coolant sensor and the conector look good but it didnt fix the problem car run good on warm weather but morning when is cool wont stay on what could be

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Friday, October 12th, 2012 AT 12:08 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,824 posts

Replacing that sensor is the number one fix for that issue. Do you have any codes in the computer?Also the sensor connector terminals were silver?Also where was the sensor located you replaced and what was the part number of the sensor you put in?Just covering all my bases.

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Friday, October 12th, 2012 AT 7:24 PM
  • Tiny
  • joseviz1979
  • Member

No I dont have any codes the sensor was in the block under the hose than come from the radiator the part was the same I pull out I will have to look the part number

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Friday, October 12th, 2012 AT 8:12 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,824 posts

Alright let me know what the part number is.

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Friday, October 12th, 2012 AT 9:08 PM
  • Tiny
  • joseviz1979
  • Member

The part was Wt5029 no sure if that is the part number u talking about

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Friday, October 12th, 2012 AT 9:21 PM

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