Check engine light codes?

Tiny
ME2114
  • MEMBER
  • 2005 JEEP LIBERTY
2005 Jeep Liberty I have my jeep and Im not sure how to get the codes? The last mechanic said I have these codes what do they mean and how do you do it? P0116 p0837 p0839?

Please help me, I need it.
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Sunday, December 13th, 2009 AT 7:12 PM

5 Replies

Tiny
BLUELIGHTNIN6
  • EXPERT
Here is how you can check the codes yourself once the repairs have been done or before.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

The first code P0116 Engine Coolant Temperature Circuit Performance looks like the sensor is unplugged or the sensor is shorted. Here is a guide that can help. The other two codes should go out when you fix the coolant sensor issue.

https://www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement

I would flush the cooling system while you are at it.

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

Please let us know what you find.

Cheers, Ken
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Sunday, December 13th, 2009 AT 7:32 PM
Tiny
ME2114
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I fixed P0116 the sensor was unplugged DOH! Thanks for your help I will clear the codes and give it a try. Thanks for this site I love it.
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Monday, December 14th, 2009 AT 4:50 PM
Tiny
BLUELIGHTNIN6
  • EXPERT
Are you having any trouble with the transmission? Is your 4WD working properly? Most likely the transfer case position sensor is bad causing these 2 codes to appear.
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Monday, December 14th, 2009 AT 5:05 PM
Tiny
ME2114
  • MEMBER
I'm not having any trouble with my transmission and the last time I used my 4wd it worked fine. I need to replace my rear u joint which i'm in the process of trying to do. Do the codes have anything to do with that?
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Monday, December 14th, 2009 AT 9:04 PM
Tiny
BLUELIGHTNIN6
  • EXPERT
If you're working on the vehicle then yes just ignore the engine codes until your done with the repairs. then when finished delete the codes and see if any come back.

Here is how

https://www.2carpros.com/articles/check-engine-light-clear-codes
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Monday, December 14th, 2009 AT 9:14 PM

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