2008 sts 3.6 l di{ reduced engine power}
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Cadillac STS Forum - 2005 through 2012 Discussion, 2008 sts 3.6 l di{ reduced engine power} in Past Cadillac Vehicle Discussion; Good day all cady owners, I am a new owner of a very low mileage hardly used sts 3.6 l ...
  1. #1
    belushi is offline Cadillac Owners Member
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    2008 sts 3.6 l di{ reduced engine power}

    Good day all cady owners,
    I am a new owner of a very low mileage hardly used sts 3.6 l di 2008 model with just over 10k miles.
    i have had this car for 3 months and it drives like magic, i was surprised with the 6 cyl performance as i used to have sts northstar 95 model years ago. any way today i got REDUCED ENGINE POWER ? HELP PLS THE CAR HAS NO WARRANTY.

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  3. #2
    dkozloski's Avatar
    dkozloski is offline Cadillac Owners 10000+ Posts
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    The first thing to do is check trouble codes. If you can't limp the thing to AutoZone where they'll check the codes for free you can buy a cheap CAN enabled code reader that will read the engine codes at almost any parts store or Walmart.
    Don't mess with Binky Bear!


  4. #3
    curtc's Avatar
    curtc is offline OCD - Obsessive Cadillac Disorder
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    A 08 with 10k should still be under factory warranty...unless it's a salvaged car.
    Past Cadillac's

    2004 CTS 3.6L - 2011-2012
    2001 Seville Touring Sedan - 2006-2011
    1995 Seville Touring Sedan - 2005-2006

  5. #4
    malatu's Avatar
    malatu is offline Cadillac Owners Connoisseur
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    Would low antifreeze put it into "reduced engine power" mode?

    If not what would?

  6. #5
    curtc's Avatar
    curtc is offline OCD - Obsessive Cadillac Disorder
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    A slipped timing chain would do that. Is the check engine light on?
    Past Cadillac's

    2004 CTS 3.6L - 2011-2012
    2001 Seville Touring Sedan - 2006-2011
    1995 Seville Touring Sedan - 2005-2006

  7. #6
    Cadillac Cust Svc's Avatar
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    Hi belushi! I'm sorry you've been having these frustrations and wanted to let you know I'm on hand if you would ilke me to check for open recalls on your STS or check the exact expiration dates/mileage for your warranties as well. Please feel free to email me anytime at Katie_Lucille@gmexpert.com for further assistance.

    Best,

    Katie
    Cadillac Customer Service

  8. #7
    dkozloski's Avatar
    dkozloski is offline Cadillac Owners 10000+ Posts
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    If there is a difference between commanded throttle position and actual position it will go to reduced power mode. My CTS used to do it all the time when -40F weather would hit. All I had to do to clear it was shut it off and restart it.
    Don't mess with Binky Bear!


  9. #8
    Ludacrisvp's Avatar
    Ludacrisvp is offline Cadillac Owners Connoisseur
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    Quote Originally Posted by curtc View Post
    A 08 with 10k should still be under factory warranty...unless it's a salvaged car.
    No, it really depends on the in-service dates.
    My 08 is out of warranty by mileage and time.

  10. #9
    EChas3's Avatar
    EChas3 is offline Cadillac Owners Master
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    My advice is to pamper the V6. Take no chances. If your insurance doesn't have towing, add it.

    Get a good code reader if you go that route. These cars have body & suspension codes as well as engine. I'd just have it flat-bedded to a delaer. Once at a dealer, they can validate the valve timing and the chain/guide wear. If that passes muster and your oil rings are OK, you're cool.

    Enjoy the ride!

  11. #10
    belushi is offline Cadillac Owners Member
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    Wow , this is a cool forum , i didnt think that i would get so many useful replays that quick.
    Actually the car is not salvage it is ammaculate, but been laying for a long time , it was my late aunti car which she bought it new in 2008 but unfortunatly died 4 months later, and i just took the car few months ago and put nearly 6k enjoyable miles on it, the tyres are original with 2 different sizes back and front 18 rims (make noises when first drive the car for few minutes).
    the warranty expired last august (4 years or 60k KM) i live in BAHRAIN so the warranty is less here unless you buy extended warranty on purchase day.
    I had Jeep grand cherokee overland hemi engine which i bought it second hand 3 years ago and bought jeep extended warranty till 100k km, the car was 2007.
    but as i said cady dont offer that.

    sorry to make it long, i took the car to the dealer and i will keep you posted with the outcome.
    bytheway i used to be a member of this forum when i had the monster 95 northstar sts 6 or 7 yrs ago and it was very useful and enjoyable (i miss my 95 sts).

    ----------

    and yes it did have the service light on

  12. #11
    dkozloski's Avatar
    dkozloski is offline Cadillac Owners 10000+ Posts
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    Good luck. It shouldn't be too serious a problem.
    Don't mess with Binky Bear!


  13. #12
    belushi is offline Cadillac Owners Member
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    good day all,
    The agent informed me today, it looks like the fuel pump failed and needs replaced + the fuel pump sensor+fuel lines+6 injectors where they have to remove the
    manifold to replace them (direct injection) plus other few gaskets and sensors.
    the agent doesnt know why this happened at this low mileage.
    i think since the car was laying for a long time all the dirt and dust etc. blocked all the fuel systems.
    ithe agent will inform me about the cost which thwy thing will be heavy $$4,000 approximate, most of it is labour cost.

    usually when fuel pump fails it gives you a warning by cutting and jettering etc, and not suddenly.

  14. #13
    malatu's Avatar
    malatu is offline Cadillac Owners Connoisseur
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    Old gasoline can play havoc on parts. It varnishes with age. Maybe that contributed to the problem.

  15. #14
    EChas3's Avatar
    EChas3 is offline Cadillac Owners Master
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    I'd be tempted to just put in a fuel pump, filter & sensor and see what happens.

    I don't doubt the fuel lines & injectors are dirty but you could say that about lot of cars that run just fine.

  16. #15
    belushi is offline Cadillac Owners Member
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    Re: 2008 sts 3.6 l di{ reduced engine power}

    i am wondering if each diagnostic codes pin point exactly the faulty part e.g fuel senor etc or it just tels you to check the whole fuel system??

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