Location of Engine Coolant Temp (ECT) Sensor



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Thread: Location of Engine Coolant Temp (ECT) Sensor

  1. #1
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    Location of Engine Coolant Temp (ECT) Sensor

    Threw my first CEL today (cherry has been popped for this one) and got the code read from my local Autozone. P0128 which states the ECT sensor is bad or the coolant level is low. Coolant level is ok, but upon researching I am having trouble locating where this is. If anyone can provide the location that would be great.

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    I'm going to guess that you have a 3.3 or 3.8 engine. I believe the sensor is near the front of the engine by the thermostat area.
    Candy the van. '98 Sport 3.8L 132,200 miles. Used trans at ~96k. Great piece of my life and a fine van.

    '69 GTO drop top
    www.facebook.com/people/Andy-Greif/1410438927

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    Yes...sorry about that. I should know better, lol. Yes it is a 2006 3.8L v6

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    The coolant sensor (ECT Sensor) is the two wire sensor that is next to the thermostat housing.



    (this shows the back side of the engine, as it's behind the ignition coil)
    2001 Infiniti i30 3.0 DOHC V6: VQ30DE 177,000 miles; 1999 Nissan Altima GLE KA24 168,000 Miles
    1997 Dodge Ram 1500 SLT Laramie 5.9 46RE, 182,000 Miles
    Prev. 97 T&C LXi 184k 3.8, 94 T&C 3.8 156k Miles, 93 GV LE 3.3 123k

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    Ahhhh there we go. Thank you...once I can pull it in the garage I will take a look to find it.

    Thank you!!

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    Quote Originally Posted by B-5 View Post
    Ahhhh there we go. Thank you...once I can pull it in the garage I will take a look to find it.

    Thank you!!
    No problem.
    2001 Infiniti i30 3.0 DOHC V6: VQ30DE 177,000 miles; 1999 Nissan Altima GLE KA24 168,000 Miles
    1997 Dodge Ram 1500 SLT Laramie 5.9 46RE, 182,000 Miles
    Prev. 97 T&C LXi 184k 3.8, 94 T&C 3.8 156k Miles, 93 GV LE 3.3 123k

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    Bump this up for hints...this thing is a pain in the arse to get out. Have unplugged the 3 ignition wires and the sensor above it. To frustating for this day!!

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    I'm experiencing this code as well. I had to have the radiator replaced recently but the hoses and thermostat were not replaced. The thermostat seems to be working properly as the temp gauge does move a quarter way up from cold and then a little passed it. The sensor seems like it would be quickest and easiest to replace. Is there any type of reset needed after installing the sensor in order to get the check engine light to go off?

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