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2000 Mitsubishi Montero Sport XLS with P0125 and P0173 Codes - Thermostat Replacement Help

Model: Montero Sport 2000 XLS Fault Code: P0125 Posted: 2015-08-27 17:42

I own a 2000 Mitsubishi Montero Sport XLS and am currently experiencing OBD-II diagnostic codes P0125 and P0173. I've already replaced the thermostat, but the codes persist. I'm not sure if I used the correct temperature-rated thermostat or if there's another underlying issue. Can anyone provide guidance on diagnosing and fixing these codes specifically for my model? Any advice on proper thermostat specifications or next steps would be greatly appreciated.

Related fault codes

P0125P0173

Comments (5)

Anonymous 2015-08-28 11:05

Make sure you're using the correct temperature-rated thermostat for your vehicle. Refer to official sources like OBD-II code explanations: http://www.obd-codes.com/p0125 and http://www.obd-codes.com/p0173 for detailed insights on P0125 and P0173 codes.

Anonymous 2015-08-28 14:52

Has anyone confirmed the correct thermostat model for the 2000 Mitsubishi Montero Sport XLS? I'm trying to find the exact specification to ensure compatibility.

Anonymous 2015-08-28 15:08

I thiink its 180deg... check owners manual or your mitsubishi dealer

Anonymous 2015-08-28 16:07

At my auto repair shop, they replaced an OEM thermostat with part numbers 1'1028 and 25283. I'm not certain what these numbers mean—does anyone know if this is the correct model for a 2000 Montero Sport XLS?

Anonymous 2016-09-25 15:28

I need to get my SUV smogged, and my check engine light is on. My friend used an OBD-II scanner and found codes P0173 and P0125. I'm wondering if this is a common issue with older Montero models or if it points to a deeper system problem.