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  1. #1

    Join Date
    17 Apr 2023
    Location
    Stockholm
    Posts
    2
    Saab(s)
    07 Saab 9-5 2.3T Bio

    Exclamation 07 Saab 9-5 2.3t bio - Engine getting hot under 5mins mark

    HI,

    I just bought a 07 Saab 9-5 2.3t biofuel with know Top engine leak (going to fix this, this week), but now I discovered that the engine is getting hot quite quick (comparing to my BMW) even on the cold day. I did check OBD for any error code but it was empty - maybe error where cleaned before the car was sold.

    I think to coolant might not be flowing properly - maybe be a new temp sensor or valve by pass is needed - any hint?

    Another thing I found while looking under the hood that there is a cable lose right next to the valve by pass, but facing (or zip tide) way from the valve by pass.

    Any help would be greatly appreciated!

    Thanks

  2. #2
    Frank
    Administrator nordwulf's Avatar
    Join Date
    30 Jul 2010
    Location
    USA - Netherlands
    Posts
    7,901
    Saab(s)
    previous: 2006 9-3, 2001-06 9-5, 2011 9-4X
    I would recommend starting with replacing the thermostat. Inexpensive and pretty easy to do yourself. And while you're in there, replacing the temperature sensor is a good idea as well.

    Check out this thread for more information:
    https://saabworld.net/showthread.php?t=1019

  3. #3

    Join Date
    17 Apr 2023
    Location
    Stockholm
    Posts
    2
    Saab(s)
    07 Saab 9-5 2.3T Bio
    @Nordwulf, okay, I will do this soon. I saw the step by step - very help full much appreciated.

    BTW, do you know what kind of cable can be running loose at the back side of the engine? I have attached pictures now.
    thanks!

    Name:  Screenshot 2023-04-18 at 14.56.12.jpg
Views: 38
Size:  56.4 KBName:  POWER DISTRIBUTION – Saab 9-5 2007 – SYSTEM WIRING DIAGRAMS.jpg
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Size:  80.0 KB

 

 

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