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Subaru engine repair questions and answers

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  • steininger1939
    steininger1939 - 2007 Subaru Forester - Engine - 6/9/2013
    Emission control system leaks
    Engine light reappears periodically, even after service. Vehicle has failed emissions test twice in Maryland and no leak is detected. VEIP read out says there is a leak. Gas cap replaced smoke test and other tests performed and a leak cannot be located.
     
    • Jimm
      6/9/2013 Jimm
      The check engine light is located on the dash and stays on if the computerized engine control system detects an engine performance or emissions problem.

      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.
  • nlevans12807
    nlevans12807 - 2006 Subaru Forester - Engine - 6/8/2013
    Will start if jumped and will go a short distance before shutting off
    All of the guages turn off then all of the warning lights come on before the power steering shuts off and the car completely shuts off. When it shuts off it won't let you put it in any gear above neutral (it's auto) and it won't let you completely disengage the key ...
     
    • frankiedonnn
      6/8/2013 frankiedonnn
      If the new battery is going dead,yes it could be the alternator or regulator.Something affecting the charging rate.When a new battery is installed the charging rate should always be checked at the same time but most people don't do that if the battery is installed at home.Another thing is a short drain in the system.Check drive-belt tension,inspect alternator wiring harness and the connector,check fusible link if it has one( located between starter solenoid and alternator) I suggest you get a Subaru repair manual for your model so you will know what applies to your vehicle.
  • TheDude
    TheDude - 2005 Subaru Impreza - Engine - 5/24/2013
    Why did check engine light lit come on?
    Lit up after hitting high speed(120/125 mph) and it jerked a couple times after easing off.
     
    • Jimm
      5/19/2013 Jimm
      The check engine light is located on the dash and stays on if the computerized engine control system detects an engine performance or emissions problem. There are literally hundreds of possible fault codes.

      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 code for more assistance.
    • HouseCallAuto
      5/19/2013 HouseCallAuto
      All vehicles manufactured after Jan 2003 have a program built into the vehicles electronics that stores excessive road speed data. When a vehicle reaches and exceeds105 mph, a data file is stored within the vehicle computer that then is uploaded to local law enforcement computers the next time the vehicle is plugged into the smog station's computer when your vehicle gets it's annual inspection.
      I am just jokin' around. maybe got ya for a second though..
      Buy a code reader at amazon for $25 and plug the reader into the diagnostic connector under the dash and read the fault codes. Update the post with code numbers and I can assist you with a fix for your car.


    • TheDude
      5/24/2013 TheDude
      Okay, the code is: P0244
    • Jimm
      5/24/2013 Jimm
      P0244 = Turbo Wastegate input error solenoid 'A' Range Performance.
      Basically you are overboosting. Are you watching your boost? The stock wastegates tend to overboost in cold conditions and especially in higher gears, just ease off the throttle a bit. Possibly the issue is related to a solenoid malfunction. This is located in the front of the Intake Manifold by the altenator on your model.

      As a first step - verify the wastegate solenoids operation. I suspect it's probably sticking at times or it could be an electrical issue. You'll probably want to buy a Subaru WRX repair manual or borrow one from the public library. Find out what wires are what, where the solenoid is located, etc. Go from there. Verify all wiring & connectors leading to the solenoid. Try applying voltage directly to the solenoid to see if it's working correctly or not.
    • HouseCallAuto
      5/24/2013 HouseCallAuto
      Replace the wastegate control solenoid valve
  • Rhett
    Rhett - 1997 Subaru Legacy - Engine - 5/22/2013
    Occasionally , My car will not start. It may start fine 8-10 times in a row, then the next time it does nothing when I t
    The battery is new(6 mos. old). This has been going on for about 2 mos., steadily increasing in frequency. This happens after it gets hot and will start again after it cools some. A guy at the dealer's shop said it was due to worn contacts in the starter, since the ...
     
    • HouseCallAuto
      5/22/2013 HouseCallAuto
      What sounds more wierd to me is someone that is going to replace contacts inside of a starter. Starter motor is like $150 to $175 give or take (at a shop with some markup on the parts) for the part without labor. I agree that your cause is a bad starter. What are they billing you for this procedure for parts and labor and will they guarantee that there changing of contacts only will solve your problem and will they warranty the starter to be free from faults again for at least 1 year? Most replacement starters come with a one year warranty, sometimes more. That is why I question whether replacing contacts only is a good idea.
  • kevinnoel8
     
    • Jimm
      5/21/2013 Jimm
      More than likely - either or both components can cause the hesitation issue. Try the many on-line auto parts sources, such as; www.autopartswarehouse.com, www.rockauto.com - to list only two. They (RockAuto) list the replacement mass air flow sensor from around $103.00 and the O2 sensor (downstream) from around $44.00, and the upstream O2 sensor from around $111.00 for your vehicle.
  • allums34
    allums34 - 2002 Subaru Impreza - Engine - 5/15/2013
    When i start my car alot of oil start leaking from the back of the engine on the passenger side so i stop driving it
    i have no clue where its coming from
     
    0 answer
  • allums34
    allums34 - 2002 Subaru Impreza - Engine - 5/15/2013
    When i start my car alot of oil start leaking from the back of the engine on the passenger side so i stop driving it
    i have no clue where its coming from
     
    0 answer
  • allums34
    allums34 - 2002 Subaru Impreza - Engine - 5/15/2013
    When i start my car alot of oil start leaking from the back of the engine on the passenger side so i stop driving it
    i have no clue where its coming from
     
    0 answer
  • allums34
    allums34 - 2002 Subaru Impreza - Engine - 5/15/2013
    WHEN I START MY CAR ALOT OF OIL START LEAKING OUT FROM THE BACK OF THE ENGINE ON THE PASSENGER SIDE SO I STOP DRIVING IT
    I DONT HAVE A CLUE WHERE ITS COMING FROM
     
    0 answer
  • allums34
    allums34 - 2002 Subaru Impreza - Engine - 5/15/2013
    WHEN I START MY CAR ALOT OF OIL START LEAKING OUT FROM THE BACK OF THE ENGINE ON THE PASSENGER SIDE SO I STOP DRIVING IT
    I DONT HAVE A CLUE WHERE ITS COMING FROM
     
    0 answer
  • thacker325
    thacker325 - 2002 Subaru Outback - Engine - 5/12/2013
    Why does my car hesitate when I step on the gas
    The car has 175.000 miles on it. It hesitates when I step on the gas, when it is already warmed up, while I am driving. Doesn't happen all the time. Happens when I go up a grade. Check engine light doesn't come on. Bought the car used about 3 weeks ago and noticed ...
     
    • Bill
      5/12/2013 Bill
      Could be as simple as dirty fuel injectors Could be transmission related because of hill comment. The vehicle has a few miles on it and unless you recieved maint. records you are really having to start your preventive maint. from scratch. Change oil and filter, spark plugs, air cleaner filter if looks dirty, use some fuel injector cleaner and check transmission fluid, front axle boots for damage, etc. No magic here, just a few tips. Hope it helps.
      Bill
      5/12/2013 Bill
      If check engine light not on then it is possible some codes may be stored in the ECU likeJIMM has suggested.
    • Jimm
      5/12/2013 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' 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
  • TheDude
    TheDude - 2005 Subaru Impreza - Engine - 5/11/2013
    Is it bad to accelerate or step on the gas while cruise control is on?
     
    • Jimm
      5/11/2013 Jimm
      No - the cruise control will only disengage with action from the gas or brake pedals. Won't hurt anything.
      Jimm
      5/12/2013 TheDude
      I thought so, but the thing is... my engine light came on after I went passed 120MPH? I thought I forgot to cancel cruise control. Car did this jump/pull like 3 times while accelerating/decelerating.
  • Kat
     
    • Jimm
      5/11/2013 Jimm
      OK - need more information. Is there any question or issue regarding the engine or spark plug wires?
  • drewb
    drewb - 1992 Subaru Legacy - Engine - 5/9/2013
    While charging battery, why do parking lights come on?
    Car has been sitting for a couple months. Battery died while sitting. When I hook up the battery to charge it the parking lights come on.
     
    0 answer
  • chuck8_
    chuck8_ - 1998 Subaru Impreza - Engine - 4/28/2013
    Car feels like a stall after a few minutes
    Start driving and the car starts to feel like a stall at a higher rpm but just slows down to a stop and the rpm idles low. Then I turn off the car for 30-60s and start it and I can drive again. Also recently changed gas filler do to rust. Doesnt feel like the ...
     
    • Jimm
      4/28/2013 Jimm
      If there was rust in the fuel filter, then the corrosion in the fuel system may be part of the problem. The fuel pump usually also has a strainer at the pick-up (inlet) side - this may become clogged.
      The problem sounds fuel delivery related; contaminated fuel lines, corrosion / rust inside the fuel tank or the system, clogged fuel strainer at the fuel tank. This would explain the intermittent stall condition - the fuel flow is getting choked off at some point to lower fuel pressure / delivery to the engine.
      Try the many on-line auto parts sources, such as; www.autopartswarehouse.com or www.rockauto.com for the replacement parts. For example, they (RockAuto) list the fuel pump strainer from around $3.00 for your vehicle.
      Jimm
      4/28/2013 chuck8_
      Would it be better to have a mechanic do it, the tiny bolts for the pump are rusting or have the tank flushed? Because I had a feeling rust might be lingering at the bottom of the tank if it takes a few minutes. My dad also suggested checking the distributor cap. Thanks for the help