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Thread: sluggish acceleration (feels like there are 3 AC condensers pulling on engine)

  1. #11
    Join Date
    Apr 2003
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    Devon PA
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    11,409

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    Clogged breather system WILL slow it down
    Oil around coil and plugs ain't good!
    Also remember they slow down in the summer heat
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    2007 V70 2.5T White/Oak, 112K miles. My daily driver and GORGEOUS
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  2. #12
    Join Date
    Jul 2017
    Location
    Normal, IL
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    update: replaced the MAF this weekend. just like with the spark plug replacement, there was a little improvement, but still getting some drag. still throwing no codes. I have noticed that the "drag" and very slight vibration occurs once I get beyond 35mph. I am thinking maybe its time to do the PCV next. Also wondering if this behavior has anything to do with the turbo.

  3. #13
    Join Date
    Sep 2013
    Location
    United States
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    216

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    If the PCV is clogged, you'd likely have nasty oil leaks, but if you think that's it, do the rubber glove test, or just pull the dipstick out and take it for a drive and see if something changes.

  4. #14
    Join Date
    Jul 2017
    Location
    Normal, IL
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    I did the rubber glove test at idle, no inflation. I still need to test it under load. I'll try driving w/o the dipstick and see what happens. Thanks for the tip.

  5. #15
    Join Date
    Feb 2010
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    Virginia Beach
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    There is no mechanical connection between your foot and the throttle. So, if it feels sluggish, there are three possibilities, in order of likelihood:

    1. The engine is running poorly
    2. The ETM is dirty and or failing
    3. The pedal transducer is failing to accurately send your pedal position.

    You've addressed 1. Time to address 2. Remove and clean your ETM.
    Current Fleet:
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  6. #16
    Join Date
    Jul 2017
    Location
    Normal, IL
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    I cleaned that ETM exactly one year ago. It had given me a lot of grief (weirdly) just in the month of September only, for the past 3 years. Grief in the form of the car going into safe/limp mode, and throwing code for the ETM. I think I will just put a new ETM in at this point. With 227k on it, and its history, its worth replacing. Thanks again for the help.

  7. #17
    Join Date
    Feb 2010
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    Virginia Beach
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    If it's throwing an ETM code, VIDA would sure help confirm that it's the ETM at fault...

    But a failing ETM would explain your symptoms.
    Current Fleet:
    2016 Tundra Crewmax 4WD 1794
    2005 MB S600 (100K, Michelin AS3+, M1 0W40)
    2002 V70-XC (238K, Castrol Edge 0W40)
    2002 V70-T5 (195K, IPD bars, Bilsteins)
    2001 V70-T5 (76K)
    1932 Packard Sedan (straight 8, dual sidemounts, original paint and interior, Shell Rotella 15W40)

  8. #18
    Join Date
    Oct 2009
    Location
    Spain
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    38

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    TCV or vacuum lines?

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