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  1. #1

    Join Date
    08 Jul 2018
    Location
    Connecticut
    Posts
    2
    Saab(s)
    2006 9-5
    Thumbs Up:   0

    2006 9-5 slow crank when hot

    So Iíve exhausted my searching and am at a loss. After being driven and the engine bay gets hot, Iíll get a slow crank (almost like a dying battery) but it wonít start. If I let it sit about 30 minutes, itíll finally start, unless itís a really hot day, then it takes longer. Iíve replaced the cps, with a heat shield, as the symptoms seeem to indicate a bad cps. But itís still happening. Thoughts?

    Itís a manual, so no NSS. New battery, OEM DIC. I do have a leak at the start of the mid muffler, and I was thinking that the exhaust might not be getting drawn out of the engine bay quickly due to the leak...

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  2. #2
    Saab Owner Digger's Avatar
    Join Date
    28 Oct 2016
    Location
    Minneapolis Minnesota
    Posts
    757
    Saab(s)
    2006 9-3 2.0t SportCombi
    Thumbs Up:   123
    Don't over think the problem, batteries die from heat as well as cold and heat can expand weak electrical contacts to the point of no function. Three most likely points to find slow crank when hot are cable connects, starter motor and battery. Check wire connects at starter motor and battery, not just how tight wires are on the starter, but also check for play in post connects on starter. Have battery output tested when hot and slow cranking and if good pull the starter motor and give it a thorough going over.

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  3. #3
    Saab Enthusiast
    Join Date
    01 Aug 2010
    Location
    Colorado/Iraq
    Posts
    187
    Saab(s)
    06' 9-5 Sportcombi, 06' Sport Sedan
    Thumbs Up:   2
    Quote Originally Posted by Digger View Post
    Don't over think the problem, batteries die from heat as well as cold and heat can expand weak electrical contacts to the point of no function. Three most likely points to find slow crank when hot are cable connects, starter motor and battery. Check wire connects at starter motor and battery, not just how tight wires are on the starter, but also check for play in post connects on starter. Have battery output tested when hot and slow cranking and if good pull the starter motor and give it a thorough going over.
    This

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  4. #4

    Join Date
    08 Jul 2018
    Location
    Connecticut
    Posts
    2
    Saab(s)
    2006 9-5
    Thumbs Up:   0
    Haha yup, I tend to over think things and ignore the obvious. Thanks, Iíll check out the starter

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