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Thread: Coolant Temp Threshold Limits?

  1. #1
    PGA2B's Avatar
    PGA2B is offline Cadillac Owners Connoisseur
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    Coolant Temp Threshold Limits?

    **EDITED**
    Anyone know what the actual Temp of the low end threshold is? I know we have 180* T-Stats from the factory but wondering what is the actual temp of the cooler threshold is.

    For example..... Since our T-Stat is 180* Factory, would a 160* set a code?

    Last edited by PGA2B; 10-22-10 at 09:22 AM.

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  3. #2
    jmak135 is offline Cadillac Owners Member
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    Re: Coolant Temp Threshold Limits?

    yes it would the vehicle needs to be at a certan temp to obtain colsed loop u can get that adjusted by having youre car tuned by like a hp tuner software they can adjust the thresholds it will throw a check engine light for to cold for to long

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    PGA2B's Avatar
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    Re: Coolant Temp Threshold Limits?

    No offense, but I am looking for a tech or tuner (like Jesse) to answer the question as we have some running around here. Or someone working at a Dealership.

    I am well versed in tuning and tuning software and know that it can be change with software.

    P.S. Perhaps you noticed I am an authorized Vendor here? I know a few things about cars and tuning. Just wanted a solid answer to the question.

    **EDIT**
    So let me be clear. What is the actual temp that if our car is lower then this temp it will set a code
    Last edited by PGA2B; 10-22-10 at 09:20 AM.

  5. #4
    jmak135 is offline Cadillac Owners Member
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    Re: Coolant Temp Threshold Limits?

    I am a master technician and own a automotive repair facility .
    DTC p0128 engine started (cold), ECT signal less than 176F at startup, IAT signal more than 20F, engine runtime from 1-22 minutes, MAF signal from 10-35F, vehicle has traveled over 0.5 miles at more than 5 mph, and the ECM detected that the minimum ECT sensor signal of 176F was not met under these conditions.

    This code sets in 2 Trip(s).
    This code will turn on the MIL (Malfunction Indicator Lamp) TO BE CLEAR 176F FOR 2 DRIVE CYCLES.

  6. #5
    PGA2B's Avatar
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    Re: Coolant Temp Threshold Limits?

    See........THAT is exactally the answer I was looking for. Not some "OLAY" BS with tuning garbage. You can change and tune for almost anything. But stock perameters is what I was looking for. That is why I didn't say anything about "With proper tuning".

    Thank you!!

  7. #6
    jmak135 is offline Cadillac Owners Member
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    Re: Coolant Temp Threshold Limits?

    my pleasure

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    Re: Coolant Temp Threshold Limits?

    Given you experience and knowledge you will be a valuable asset to the community.


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