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Check engine light comes when its cold

Today I have just noticed that my check engine light has come on... Cant see any damage under the hood from leaks but the weather has been extremely cold would this maybe effect it? what shall i do?

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  • Ford Master
  • 5,280 Answers

Have the engine computer scanned for trouble codes. Autozone and Oreillys do scans for free. The code or codes will indicate the problem.
When the engine light is on, the computer has detected a fault in the engine management, and will set a trouble code.

Posted on Feb 13, 2014

6 Suggested Answers

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Posted on Jan 02, 2017

SOURCE: Strong gasoline smell when cold and wet weather.

the first thing to do is look under the car at the plastic canister the vaper recovery system it is in the rear some times it is coverd by a sheild the vacuume hoses are bad if you smell gas and that will turn the light on it works off a pressure senser on the tank check all the hoses

Posted on Dec 07, 2008

GM Elec
  • 1000 Answers

SOURCE: Traction control

Lvan....Have you had the codes pulled for the ABS failure? I would not be supprised if you have a wheel speed sensor failure.
Check with your local Auto Zone or other after market part store, they will pull codes for you for free in most cases.
Let me know.
Regards,

Posted on Feb 10, 2009

  • 1 Answer

SOURCE: winding noise or vaccum leak from front of motor.

A/C -Heater controls
Has you are aware the A/C Clutch compressor is engaged at all times when the defrost mode is turned on. Turn off all heater controls. If the noise is gone it will be either the Air conditioner compressor clutch bearing or possible the idler pulley bearing .
The Warden

Posted on Apr 26, 2009

  • 416 Answers

SOURCE: Extreme cold weather has caused my tire pressure

my reset after driving for a bit if not check owner book

Posted on Jan 20, 2010

  • 67 Answers

SOURCE: saturn code p0442, evap system small leak, can't find leak

I would send the car in for a smoke test...So much easier to find the leak...

Posted on Mar 16, 2010

Testimonial: "found another definitation for a code 422. replaced rear o2,fixed"

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