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Safe to drive with P0125 error code?

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Old Dec 5, 2014 | 09:34 AM
  #1  
Mike Rogers's Avatar
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Safe to drive with P0125 error code?

I'm driving a 2000 F150 with the Triton V8 5.4L.

My check engine light came on the other night while heading home. I went to Auto Zone and had them scan it and it came back with the P0125 error code.

My guess is that the thermostat is faulty because my heater is blowing lukewarm air after about 20-30 minutes of normal driving and I would expect the air to be much warmer so I'm thinking that the engine is not getting up to normal operating temperature.

I understand that this can be bad for fuel economy and such, but my question is it safe to drive?

I had planned on hunting up in the hills tomorrow all day and just want to know if this could cause any damage?

Here's a picture of what my cluster looks like after running for about 30 minutes.






Cluster after 30 minutes of driving.
 
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Old Dec 5, 2014 | 12:32 PM
  #2  
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Won't hurt for a day or so.
You got time today, change the thermostat and put in new coolant.
Good luck.
 
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Old Dec 5, 2014 | 02:23 PM
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Poor fuel economy. Potential converter damage if left to go.
 
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