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Subaru engine repair questions and answers

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  • benb
    benb - 1999 Subaru Legacy - Engine - 1/6/2013
    Subaru runs great on any terrain for first five miles then engine starts Hesitating in a pull ,any ideas?
    Have checked codes which gave cylinder 2,3,4 misfire & camshaft sensor chged sensor, crank sensor , fuel pump,strainer & filter
    0 answer
  • Denver Driver
    Denver Driver - 2005 Subaru Impreza - Engine - 1/6/2013
    Car Vibrates for first 5 minutes of driving then stops
    I drive 45 minutes to/from work. After about 5 minutes of driving the car starts to vibrate/shake. It is a very pronounced feeling in the steering wheel and it is worse the faster i go. It only lasts about 5 minutes and then it stops and everything is normal for the ...
    0 answer
  • juelz
    juelz - 2001 Subaru Outback - Engine - 1/5/2013
    What does it mean when you put you car in reverse and it bangs real hard is it the motor or transmission mount
    In reverse it knocks real hard but only in reverse
    0 answer
  • katedoyle1982
    katedoyle1982 - 1991 Subaru Legacy - Engine - 1/4/2013
    My battery was taken out of my car then it was put back in wrong the terminals were put on the opposite battery terminal
    now my car will not start, hazard lights are flashing
    0 answer
  • gary
    gary - 2005 Subaru Legacy - Engine - 1/3/2013
    What is the cause of small oil leak on left side above exhaust manifold What is the fix?
    Oil leak above exhaust manifold
  • laughing01
    laughing01 - 2008 Subaru Impreza - Engine - 1/2/2013
    Can the catalytic converter cause a head gasket blow? If not what could cause it especially when there are no symptoms.
    Car was smelling like burnt oil or rubber after I had dealer check the spark plugs to see if needed to change. Car looked like it was loosing force went to another dealer they state head gasket was blow. Took it to Midas to confirm they said it appears it it cause ...
    0 answer
  • chipsitin
    chipsitin - 2000 Subaru Forester - Engine - 12/31/2012
    Does this car have a MAF or an MAP or both?
    • Jimm
      12/31/2012 Jimm
      There is a MAP (manifold pressure) sensor on the 2.5L engine. It's main function is to sense barometric pressure at the air intake of the engine. Try the many on-line auto parts sources, such as; or for the replacement parts.
  • subaru
    subaru - 2003 Subaru Outback - Engine - 12/31/2012
    My 2003 outback wagon has this engine jerk... At a stop it sometimes juts forward. as I drive more noticeable AC.
    Not so bad with heat, but still there. It's it engine or transmission?
    • Jimm
      12/31/2012 Jimm
      First step - have the check engine light or stored fault codes scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' for more assistance.

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this)
      Dirty air filter (change filter)
      Dirty / clogged fuel filter (change filter)
      Bad MAP (manifold absolute pressure) sensor
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor
      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)

      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires
  • Dillbert
    Dillbert - 1999 Subaru Legacy - Engine - 12/29/2012
    I have a 99 Subaru Outback 2.2 L all wheel drive; the thermostat kept blowing out, so we left it out and
    just kept the fluids full. Then, it overheated. We replaced the thermostat again, and changed fluids, got it home and now it won't start. A friend said it was the fuel pump. My mother said it was probably a relay that overheated. How do I figure out what is wrong?
    • Joe Boulay
      12/29/2012 Joe Boulay
      It sounds like you may have a head gasket issue. This should be diagnosed by your mechanic. It is a hard one to give a definite diagnoses without actually seeing what is going on.
      Hope this helps
      Joe Boulay
      Automotive Technician & Author
      [email protected]
  • gamalsayed15
    gamalsayed15 - 2003 Subaru Legacy - Engine - 12/29/2012
    Bad speed response with pedal
    i have legacy2003.when using air conditioner....speed slow and force of engine decreases...and press fuel pedal hard ...engine response is very low..
    • Joe Boulay
      12/29/2012 Joe Boulay
      If your A/C system was recently serviced it could have been over charged this could cause these symptoms.
      Or your A/C compressor could be starting to seize .
      Hope this helps
      Joe Boulay
      Automotive Technician & Author
      [email protected]
  • spatley
    spatley - 1996 Subaru Legacy - Engine - 12/29/2012
    Why is there smoke or steam coming from the back of the engine (close to the dash)?
    Whenever I go uphill for a prolonged period (1-2 miles), steam starts coming out from under the hood. It smells like burned rubber, and it seems to be coming from the center back area close to the dashboard.
    • Jimm
      12/29/2012 Jimm
      Most likely, the issue is a leaking heater core, or leaking heater hoses. Check on-line for the many parts supply sources, such as; or for the replacement parts.
  • joaner702
    joaner702 - 2009 Subaru Impreza - Engine - 12/26/2012
    Lots of white smoke being emitted and oil dripping from exhaust pipes.
    39,000 miles. No work performed. When it started it was just when the engine first started. Recently, it has been doing it all of the time, idling, driving, always, with a great of deal of smoke coming out of the exhaust pipes, and oil is dripping from where the ...
    • Jimm
      12/26/2012 Jimm
      These are indications the cylinder head gasket is blown / leaking / faulty. Check on-line for the many parts supply sources, such as; or for the replacement parts.
      12/27/2012 joaner702
      Thank you!
  • inwoodautos
    inwoodautos - 1998 Subaru Forester - Engine - 12/23/2012
    Car stalls when cold
    It starts but cuts off. Once it is warm then it stays on
    0 answer
  • inwoodautos
    inwoodautos - 1998 Subaru Forester - Engine - 12/23/2012
    Car stalls when cold
    It starts but cuts off. Once it is warm then it stays on
    0 answer
  • johnnie
    johnnie - 2006 Subaru Baja - Engine - 12/19/2012
    Engine light on. They say oxygen sensor. As been replaced once
    Tries to stall