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Subaru engine repair questions and answers

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  • bill
    bill - 2012 Subaru Forester - Engine - 8/11/2013
    The oil pressure warning light comes on very dimly while running errands or long distances.
    Yes I changed the oil.The light varies from barely visible to just a bit light but no way as bright as when the bulb checks when you first turn the key. It fades away or comes back when speed increases or turning a corner. Oil level shows full each time.
     
    • CVO
      8/11/2013 CVO
      This vehicle is still under the 3 years or 36,000 miles warranty bumper to bumper. Call Subaru Dealer for a warranty repair.
      Note: it could be the oil pressure switch.
  • gandftv
    gandftv - 1999 Subaru Legacy - Engine - 7/20/2013
    Idling problem: bucks and shakes; It purrs like a kitten when outside temperature is above 95 degrees
    It does pretty well before warming up. But when warmed up it bucks. I would change the idler valve but I am not sure this is valve problem. Why would it purr like a kitten only when outside temperature is above 95 degrees. Coolant temperature is fine. Replaced the ...
     
    • wbrockstar
      7/20/2013 wbrockstar
      A MAP(manifold absolute pressure) sensor,ECT(engine coolant temperature) sensor,and AIT(air intake temperature) sensor are the 3 sensors that adjust engine afr(air fuel ratio) on a fuel injected engine.One of these could be malfunctioning.They work solely off of different temperatures meaning their signals they send to computer flucuate with outside/engine temperature
      wbrockstar
      7/20/2013 gandftv
      Dear wbrockstar, Thank you for your quick response. I am a total novice on these new engines but I had a feeling it was not the idler valve. The engine temperature stays constant and should not know anything about the ambient temperature. That should narrow it down and I can use a hair dryer to try and track down the defective part(s). You saved me trying the idler valve.
      Thanks again,
      Raj
      wbrockstar
      7/20/2013 wbrockstar
      Normally when the iac goes bad or gets dirty,it will cause the rpm,s to go up and back down,,repetitively at idle.500 rpm then up to 1500 rpm back to 500 then up to 1500,over and over.You can remove the iac and clean it with carb cleaner then blow it out with air compresser just to check and see if its malfunctioning
  • bringbackthebassline
    bringbackthebassline - 1993 Subaru Legacy - Engine - 7/19/2013
    Wont start. No power turning key w/clutch in, but power w/out clutch in. Doesn't turn over at all.
    The day before I had to jump my car, but it still drove home fine, had a bit of a whine which sounded electrical. Next morning I had almost no power, and even when on a charger with power I got no turn over. When I turn the key with the clutch in, the power ...
     
    • wbrockstar
      7/19/2013 wbrockstar
      The neutral safety switch could be the problem.Sounds like it may have a short causing it to make your electrical system cutout with clutch pushed in.I didnt notice a clutch interlock switch located for your car on rock auto,so youve only got the neutral safety switch.It tells the car to start but only when clutch is pushed in.Keeps you from bein able to start car in gear while clutch is not pushed so you start the car and go flyin through somebodys house,etc
  • zerbesgreasemonkeys
    zerbesgreasemonkeys - 1992 Subaru SVX - Engine - 7/18/2013
    1992 Suburu SVX 3.3L - Fuel pump not working
    Replaced fuel pump - car sat for 8 months while out of country and no start\battery dead and replaced - still no start - replaced fuel pump again with strainer, fuel pump relay, fuel filter - fuel pump still not running - it's electronic fuel pump
     
    0 answer
  • dianecassada
    dianecassada - 1992 Subaru Legacy - Engine - 7/17/2013
    Why won't it start just makes a click
    just makes a click when i turn key.won't start with jumper cables, will start if roll it off and pop clutch, replaced starter still same
     
    • wbrockstar
      7/17/2013 wbrockstar
      If the batterys good and you replaced the starter,it could be the starter relay.Normally bolted to the inner fenderwell right next to battery.Check any fuses related to starting circuit before replacing starter relay
  • 63 Volvo
    63 Volvo - 2003 Subaru Forester - Engine - 7/14/2013
    The car burns through a quart of oil every 300 miles where is it going?
    No smell of burning oil, no sign of oil in coolant no sign of coolant in the oil, no oil on the engine, no signs of oil in the exhaust. miss fire in cylinder 1
     
    • CVO
      7/14/2013 CVO
      1.Worn valve stem seals will cause the car to 'burn oil'. it will allow oil to penetrate into the combustion chamber and process it through the exhaust.

      2. What causes a cylinder to misfire? Basically, it's one of three things: loss of spark; the air/fuel mixture is too far out of balance to ignite; or loss of compression.
      a. A dirty, clogged or inoperative fuel injector, restricted fuel filter.
      b.A burned exhaust valve.

      Replace the fuel filter and add a 16 oz Chevron fuel injector cleaner in a full tank of gas to clean it.
      Obtain a loan free compression tester ( Autozone or O'Reilly ) and do a compression test on the cylinder 1 to check the valve.
      CVO
      7/14/2013 63 Volvo
      but I cant see any signs of oil in the exhaust?
      CVO
      7/15/2013 CVO
      You won't see it, it blended with the fuel in the combustion chamber. The only sign you will see it, is the blue smoke in the exhaust then the problem is due to worn oil piston ring.
      CVO
      7/15/2013 CVO
      I use the restore engine oil for a year, my 1992 Dodge Caravan getting oil consumption every 750 miles ( double than before ).
  • BillyPhipps
    BillyPhipps - 2010 Subaru Forester - Engine - 7/12/2013
    Why can't I put gas into my car.
    This is the second time within a year and a half, when I tired to fill up my gas tank the gas pump @ station would shut off as if the tank was full. I had a quarter of a tank each time this happened, also It was a very hot & humid on both day. Thank You BillyPhipps
     
  • bobbyk_23
    bobbyk_23 - 2004 Subaru Forester - Engine - 6/27/2013
    Could engine misfire be related to driving without an oil cap for hundreds of miles?
    I had my subaru forester's oil changed at a dealer and several weeks later the check engine light came on. Upon inspection I realized they hadn't put the oil cap back on after the oil change. The dealer re-set and the engine light and apologized. A month later my ...
     
    • Jimm
      6/27/2013 Jimm
      First question - what are the specific fault codes / conditions that have caused the check engine light? It may be possible for the engine oil to leak through the engine oil fill cap missing - and cause one or more of the spark plugs, ignition coils and / or wires to misfire.
      If the dealer has realized and acknowledged the mistake by their not installing the oil fill cap after the oil change - they why are they charging you anything - for what may be related repairs?

      At any rate, I would certainly collect all the repair receipts paid since the oil cap issue was discovered, and ask the dealership for a reimbursement.
  • bobbyk_23
    bobbyk_23 - 2004 Subaru Forester - Engine - 6/26/2013
    Could engine misfire be related to driving hundreds of miles with oil cap off?
    I had my subaru forester's oil changed at a dealer and several weeks later the check engine light came on. Upon inspection I realized they hadn't put the oil cap back on after the oil change. The dealer re-set and the engine light and apologized. A month later my ...
     
    • frankiedonnn
      6/26/2013 frankiedonnn
      If the oil spattered all over the engine and somehow got into the wrong place,I suppose it could.If it got on the wire connectors for instance.You could try checking the connectors, see if they are oily, maybe clean them with a recommended electrical cleaner.
  • natalie_91
     
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  • natalie_91
     
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  • james
    james - 2002 Subaru Outback - Engine - 6/25/2013
    Replaced battery cable now acts like out of gas ??
    battery cable caroded threw, I replaced rith new cable end but now car wont hold idle or stay running if im not revving it high rpms acts like running out of gas or over choked ?? cant even find fuse box, not on sidewall under dash by door like in my old one ???
     
    0 answer
  • james
    james - 2002 Subaru Outback - Engine - 6/25/2013
    Battery cable replaced now acts like running out of gas
    battery cable caroded threw, I replaced rith new cable end but now car wont hold idle or stay running if im not revving it high rpms acts like running out of gas or over choked ?? cant even find fuse box, not on sidewall under dash by door like in my old one ???
     
    0 answer
  • patergarcia
    patergarcia - 2006 Subaru Outback - Engine - 6/21/2013
    When the car is at a stop it idles really low. The guage goes almost to zero then bats back up to 1, then back down.
    It feels like it's going to stall then the sensor kicks in and it revs back up.
     
    0 answer
  • TheDude
    TheDude - 2005 Subaru Impreza - Engine - 6/20/2013
    Why is the engine temperature fluctuating while driving?
    It just started doing it this morning. I found it weird because it hasn't done this since last year. That's when I replaced the thermostat due to it being bad. Car does have water. Just topped it off. Help please.
     
    • HouseCallAuto
      6/20/2013 HouseCallAuto
      Check the coolant level in the radiator and not where the plastic overflow is. Make sure that you open the bleeder valve on the top of the radiator to purge out any air that got trapped after doing the thermostat.
 
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