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Check engine light comes first sign cold weather temp 30

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  • Dodge Master
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There are several systems that will make this light come on.. oil pressure..fuel mix when cold..co2 emissions .. and whatever the computer gets in the way of erors..

Posted on Jan 01, 2014


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Posted on Jan 02, 2017

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SOURCE: Check Engine light went on cold weather on Mit Galant 2002

There could be a number of reasons why the Check Engine light is on. US vehicles manufactured prior to 1996 feature a diagnostic module in the engine compartment by the main fuse box. Often a label is affixed to the underside of the hood explaining which terminals to access.

Using a simple metal tool (even a paper clip) to connect the two terminals will cause the check engine light to flash in the dash when the key is in the accessory position. By reading the number of flashes one can determine which code was set. Manufacturer’s code guides, available online, will reveal which system(s) tripped the check engine light.

It could be a vacuum leak, dirty fuel injectors, blown head gasket, etc. The longer you drive with the Check Engine light on the more damage you are doing to the vehicle. So if you are a DIY type of a person then you can check the code on the ECU or bring it to a dealer near you.

Posted on Dec 18, 2008

  • 180 Answers

SOURCE: F250 Diesel engine won't start in cold weather

check your glow plug relay! located on the right side head

Posted on Mar 19, 2010

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SOURCE: check engine light is on when the weather is warm,

The answer to your issue involves extracting the codes. These codes are clues, not necessarily the answer.. After you have the codes, you can proceed with those indications.

Posted on Mar 01, 2011

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5/30 is the correct oil to use (for maximum engine efficiency, gas mileage. !0/30 won't 'clog up' your motor, but it will make it more difficult to start in the cold weather. Just think of maple syrup in your fridge, try to pour it, compare to pouring @ room temp, The many oil lubricated engine parts will have difficulty turning, spinning, etc if u had cold thick syrup in the engine. Warm up the syrup, everything moves freely. The 10/30 is just a heavier (thicker if u will) oil, not what u should use in the cold weather. If u have your owners manual, check it out, it will give u the recommended oil weight to use for the temperature of your climate, but I think u will find 5/30 recommended for most situations. Always change your filter when u change the oil, change oil and filter 2x a year or 3k miles whichever comes 1st

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