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Thread: 2005 power steering and overheating problem

  1. #1
    Knuckleduster is offline Cadillac Owners Member
    Automobile(s): CTS-V
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    2005 power steering and overheating problem

    I recently had the thermostat fail and cause my radiator to explode in a very exciting fashion. Three weeks of flawless operation after the replacement, I had the service engine soon message pop up, followed by a loss of power steering and the engine overheating. I had my car towed to the shop that did the replacement, and they were able to run it and drive it with no sign of what caused the problem, and there were no useful error codes to be found when they checked. I thought it was just a freak accident until 15 minutes ago, when the exact same thing happened. So, while I sit here waiting for the car to cool down, I figured I could ask if any of you had any experience with something like this or any advice. I have a dealership appointment tomorrow, but I'd appreciate any extra information available before that.

  2. #2
    JFensty's Avatar
    JFensty is offline Cadillac Owners Enthusiast
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    First guess would be that there was an air pocket somewhere in the system. Only for it to happen a second time makes no sense.
    Wonder if a fan isn't plugged in all the way causing an intermittent issue

    That really wouldn't account for the power steering issue though. What temps were you seeing?

  3. #3
    Knuckleduster is offline Cadillac Owners Member
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    Re: 2005 power steering and overheating problem

    Quote Originally Posted by JFensty View Post
    First guess would be that there was an air pocket somewhere in the system. Only for it to happen a second time makes no sense.
    Wonder if a fan isn't plugged in all the way causing an intermittent issue

    That really wouldn't account for the power steering issue though. What temps were you seeing?
    Well, it looks like your second guess was correct. Not sure why it affected the power steering as well, but I found a loose wire and it seemed to fix the problem.

  4. #4
    Knuckleduster is offline Cadillac Owners Member
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    Re: 2005 power steering and overheating problem

    Well, whatever the loose wire was doing it wasn't related to my problem. The problem seems to be related to something powered by the belt. It's still a very random and intermittent problem with hundreds of miles between incidents. Even more frustrating is that it just goes away within about an hour, so no shop can really diagnose it. My wife was watching under the hood when I started the car and she said it looked like the belt is having trouble around the upper right pulley, though I'm not sure if that is correct.


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