V8 Coolant Temperature Sensor Location?
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Cadillac SRX First Generation Forum - 2004 - 2009 Discussion, V8 Coolant Temperature Sensor Location? in Cadillac SRX Forums; I have a 2008 AWD V8 SRX and recently every time it rains, my temperature needle drops to zero, then ...
  1. #1
    xboxman72 is offline Cadillac Owners Member
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    V8 Coolant Temperature Sensor Location?

    I have a 2008 AWD V8 SRX and recently every time it rains, my temperature needle drops to zero, then the display says the engine is too hot and kills the A/C. I can resolve this by disconnecting the battery for a few minutes after the rain stops.

    I assume some connection is getting wet or the sensor needs to be replaced. I searched but cannot find a reference to it on the V8.

    Can anyone point me in the right direction?

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    glake89's Avatar
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    Re: V8 Coolant Temperature Sensor Location?

    At the rear of the right cyl head, #711.
    cs.PNG
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    Re: V8 Coolant Temperature Sensor Location?

    Temp sensors are thermistors. They never fail and then recover in my years working with them and when they do fail they will always indicate an extreme value as they develop a short or open internally. Sounds like you have a bad connection someplace that gets wet when it rains.

    Bill

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    xboxman72 is offline Cadillac Owners Member
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    Re: V8 Coolant Temperature Sensor Location?

    That picture is on the passenger side by the firewall? I'll have to look harder. I don't see how that location is getting wet though, I did notice water from the windshield is running under the plastic cowl on the driver side and down the firewall behind the fabric insulation in the engine compartment.

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    xboxman72 is offline Cadillac Owners Member
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    Re: V8 Coolant Temperature Sensor Location?

    I located the sensor from under the car but could not get my hand anywhere near it without removing the drive shaft so, I coated the ends of the wires where they go into the connector with some RTV using a stick. We'll see what happens next time it rains.

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    Re: V8 Coolant Temperature Sensor Location?

    If you remove the plastic engine cover you can get to it.
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    xboxman72 is offline Cadillac Owners Member
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    Re: V8 Coolant Temperature Sensor Location?

    I could not reach it from the top even with the cover off, maybe i'll take another look but I did what I wanted to do anyway. Hopefully it stops for now.

  9. #8
    frankcottnj is offline Cadillac Owners Member
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    Re: V8 Coolant Temperature Sensor Location?

    Bill do you know where the sensor is on the 3.6? I assume it's by the thermostat but don't see it.
    frank

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    Re: V8 Coolant Temperature Sensor Location?

    It's just to the rear and about level with the oil filter housing.
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    n7don_srx is offline Cadillac Owners Enthusiast
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    Re: V8 Coolant Temperature Sensor Location?

    Quote Originally Posted by frankcottnj View Post
    Bill do you know where the sensor is on the 3.6? I assume it's by the thermostat but don't see it.
    frank
    The sensor is located near the front in the driver's side head. The thermostat is at the rear of the pass. side head.

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    frankcottnj is offline Cadillac Owners Member
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    Re: V8 Coolant Temperature Sensor Location?

    Thank you, I'll start on this now. Hope all goes well and no engine P0119 codes.
    frank

    ----------

    Wow, this plug is it the top 1/4 inch tab that I lift off to disconnect? I have not familiar with this plug type and it looks like it has the one lock tab on the top. Please advise this will be my last plea for help. I just don't want to break the plug.
    frank

  13. #12
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    Re: V8 Coolant Temperature Sensor Location?

    Hang on Frank, pics coming.
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  14. #13
    glake89's Avatar
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    Re: V8 Coolant Temperature Sensor Location?

    Red line points to release tab, press down. If there's a gray tab, slide it out first, it's a connector assurance lock.
    CT.PNG CT1.PNG
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  15. #14
    frankcottnj is offline Cadillac Owners Member
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    Re: V8 Coolant Temperature Sensor Location?

    This is the best forum I've ever been on. Thank youi. So I am gong to squeeze or press down on the tab. I was glad to see this because I was going to pick it up with a screw driver tip. Thank you

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