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Subaru engine repair questions and answers

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  • jessip1980
    jessip1980 - 1997 Subaru Impreza - Engine - 2/7/2013
    Replaced timing belt now car won't start
    the belt didn't break it was just for maintenance looked over timing marks several times it will turn over but not start
     
  • chill88
    chill88 - 1996 Subaru Legacy - Engine - 2/6/2013
    My car feels like it is dying.
    my subaru has a little shy of 158,000 miles on it. It hesitates, putters, losses power, stalls out if i sit at light to long or brake quickly, and misfires in 3 of 4 cyliders. I usually get 25-30 mpg, i've been getting maybe 15. It happens cold or hot. It starts ...
     
    • ezautobody
      2/6/2013 ezautobody
      i have the same exact problem..please let me know if you have found out the solution
  • drdoud
    drdoud - 1999 Subaru Forester - Engine - 2/4/2013
    Continued valve cover leak on one side with all new seals? Could the cover be warped or are there tricks to sealing?
    any tips would be appreciated, can you take apart without replacing seals or should the gasket be replaced every time you remove the cover?
     
    • Joe Boulay
      2/4/2013 Joe Boulay
      Hello
      Hopefully the gasket did not move out of position when you re installed the valve cover. These engines are notorious for head gasket leaks and rear crank seal leaks . Make sure those are not your source of oil loss before you go too much further.
      Hope this helps
      Joe Boulay
      Automotive Technician & Author
      joe@joeboulay.com
      www.joeboulay.com
  • lisakopas
    lisakopas - 2008 Subaru Outback - Engine - 2/2/2013
    Why does my car make a siren like noise while I'm driving?
    Over the past 2 weeks my car has been making a siren like noise while I am driving. It only lasts about 5 seconds & by the time I turn down the radio to see where its coming from, the noise is gone. It seems to happen in the early morning hours (4-7am). Sometimes it ...
     
    • rick
      1/4/2013 rick
      Things like this can be very hard to find untill it happens more . I'm sure your dealer told you the same thing . Sorry but you might have to keep driving it untill it acts up enough for someone else to hear it .
    • seansalzarulo
      2/2/2013 seansalzarulo
      This could be a few things. From experience, I can tell you that my roof rack will make a hum at highway speeds if there is an extremely strong crosswind that hits the crossbars just right. The moment I realize that the rack is making noise it seems to go away - this is probably because I slow down to see if I can hear the noise better, but this changes the wind speed across the rails, and therefore stops the noise. Also - some of these vehicles had an issue with rear wheel bearings making some noise at highway speeds after they've gone about 50,000 miles - defective bearings?. The dealer should be well aware of this as well, and there should be a Subaru Tech Bulletin about it floating around out there - the wheel bearings are covered under an extended warranty (I do not have the specifics regarding the mileage or age limitations on that warranty). If your dealer doesn't know about this, then I suggest speaking to a Subaru Regional Director or Manager, or, if feasible, see if another local dealer can assist (if there is another one in your area). Good luck… Just because the service tech can't duplicate the noise doesn't mean there is no problem. Don't take no for an answer if it's really bothering you.
    • seansalzarulo
      2/2/2013 seansalzarulo
      This could be a few things. From experience, I can tell you that my roof rack will make a hum at highway speeds if there is an extremely strong crosswind that hits the crossbars just right. The moment I realize that the rack is making noise it seems to go away - this is probably because I slow down to see if I can hear the noise better, but this changes the wind speed across the rails, and therefore stops the noise. Also - some of these vehicles had an issue with rear wheel bearings making some noise at highway speeds after they've gone about 50,000 miles - defective bearings?. The dealer should be well aware of this as well, and there should be a Subaru Tech Bulletin about it floating around out there - the wheel bearings are covered under an extended warranty (I do not have the specifics regarding the mileage or age limitations on that warranty). If your dealer doesn't know about this, then I suggest speaking to a Subaru Regional Director or Manager, or, if feasible, see if another local dealer can assist (if there is another one in your area). Good luck… Just because the service tech can't duplicate the noise doesn't mean there is no problem. Don't take no for an answer if it's really bothering you.
    • seansalzarulo
      2/2/2013 seansalzarulo
      Sorry - posted twice in error. The TSB is # 246863 - The dealer should be able to look this # up and review the Tech Service Bulletin and remedy.
    • HouseCallAuto
      2/2/2013 HouseCallAuto
      Its not a wheel bearing because the noise from a bad wheel bearing, although it does sound like a siren, it will not go away after a few minutes. I think you have a loose heat shield (broken / rusted through retainers or welds) that is vibrating and giving off a harmonic sound because they are like pieces of tin. When the exhaust system reaches full temperature the high frequency vibration is dampened. I would lay under the car and use the side of your fist and smack upwards in different places of the exhaust system and try to "hear" the noise. Do it when the car has not been started up yet for the day, ice cold.
  • psue321
    psue321 - 2000 Subaru Impreza - Engine - 1/28/2013
    Why does car act like gas tank is full when pumping gas?
    When I put gas in the car it will make the pump stop every dollar or two like it should when it's full, but it isn't full. Can move nozzle around to start pumping again then it stops again like it's full. Check engine light not on. Just bought car used and don't ...
     
    • 1beastlydude
      1/28/2013 1beastlydude
      most cars have a vent on the ank either to atmosphere or to (thanks to al gore) a vapor canister under the hood, you may have a blockage in this

      Gas pumps work off of vapor pressure when there is little to no vapors they pump fine, this is when the extra vapors funnel out the vent
      however they shut off when the vapors stop venting
      like when the fuel reaches the top of the tank, or in your case some thing is blocking the flow of vapors
  • roadrat
    roadrat - 2001 Subaru Outback - Engine - 1/28/2013
    Small patch of motor oil on top of air filter
    Is that from a gasket leak
     
    • Jimm
      1/28/2013 Jimm
      Usually, the oil patch is due to the PCV system and small filter located inside the air cleaner box - being saturated with oil. Simply replace the small PCV breather filter foam piece (usually less than $2.00) with a new one.
  • gary
    gary - 2001 Subaru Outback - Engine - 1/19/2013
    2001 subaru outback has gasoline smell in cab when engine is cold. Likely cause and repair?
    Just started when weather changed. First winter I have had car.
     
    • Jimm
      1/19/2013 Jimm
      Several possibilities; fuel hose or rigid line leak, fuel line clamp is loose, fuel filter leaking.
  • oso3208
    oso3208 - 2004 Subaru Outback - Engine - 1/15/2013
    Check engine light flashing and real loss of power sounds like vacuum link or plugs
    Just started today
     
    • Jimm
      1/15/2013 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' with the specific fault code 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
  • pop2noahnmia
    pop2noahnmia - 2002 Subaru Forester - Engine - 1/12/2013
    Thinking about swapping out my motor and transmission
    Would like to swap out my motor and automatic transmission and install a 2.5l motor and auto trans from a 2002 legacy,can this be done without a hassle and any problems or do I need a motor and trans from a forester to make it easier?
     
    • Jimm
      1/11/2013 Jimm
      Should be the same basic engine and transmission design and configuration.
      Jimm
      1/11/2013 pop2noahnmia
      thanks for the infro
    • rwainw9009
      1/12/2013 rwainw9009
      Dont! Save yourself a lot of headaches. Unless you enjoy headaches.
  • mcjollychops
    mcjollychops - 2003 Subaru Outback - Engine - 1/10/2013
    I hear a pinging sound when I accelerate, what could that mean
    In the engine
     
    0 answer
  • jjmillen
    jjmillen - 1990 Subaru Loyale - Engine - 1/7/2013
    1990 Subaru Loyale-What are the symptoms of a bad alternator? Any other issues causing a gas Subaru to die suddenly?
    I recently had an issue driving my 1990 Subaru Loyale when it began to progressively loose power and finally died. Leading up to this, all of the dash warning indicators would light up intermittently with varying levels of brightness. When it finally died, I let ...
     
    0 answer
  • adrenaline1205
    adrenaline1205 - 2006 Subaru Impreza - Engine - 1/7/2013
    Why does my car not go more then 140kmph
    mileage is 120000km, and this problem is always there, there are no error lights what so ever. My car is Subaru impreza GG3, 1500cc
     
    0 answer
  • 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
 
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