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Subaru engine repair questions and answers

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  • AutoMD Member
    AutoMD Member - 1999 Subaru Legacy - Engine - 8/4/2014
    My car won't start and we tried jumping it but nothing will work. The battery says were at 12 volted though?
    So my car won't start and we tried jumping it but nothing happened. No sounds no nothing. But the lights and radio are coming on. So we checked the battery to see what it says and it's right at 12 volted. I don't know what's wrong.
    • jdl
      8/4/2014 jdl
      I'd have to make sure battery has a full charge. Next, I'd have to check the wiring circuits at the starter for voltage and ground. Any testing at the starter, make sure tranny is in park or neutral and parking brake is set. Is this an automatic or manual tranny?

      Some of the national brand autostores will test the battery for you, they will also test the starter, if you take it to them.
  • AutoMD Member
    AutoMD Member - 1990 Subaru Legacy - Engine - 8/3/2014
    Why would my car have a sputtering sound but only vibrate when accelerating & only be felt in the gas pedal and shifter
    When the car is idling there is no abnormal sound. once I accelerate and hit anywhere from 20 mph and 35 mph I hear a sputtering sound. Then once it gets to about 40 when I push on the gas pedal the sputtering sound gets louder. But the only place I feel the ...
    0 answer
  • AutoMD Member
    AutoMD Member - 1998 Subaru Legacy - Engine - 7/27/2014
    Car wont start sometimes?!?!
    when the car gets up to temp and you shut it down it wont start, if it sits for a while it wont start, and its getting worse
    • CVO
      7/27/2014 CVO
      Camshaft position sensor ?

      The check engine light doesn't have to be ON to store a fault code.

      Check the vehicle for fault codes to see if there are any sensors were involved to the malfunction of the engine.

      1.Local auto parts stores such as Autozone ( not in California) or Advance Auto parts or Pep Boys will scan and retrieve any diagnostic trouble codes ( dtc ) stored in the powertrain control module for free of charge..

      2. has the code reader for less than $ 17.69 dollars + shipping
      Autel MaxiScan MS300 CAN Diagnostic Scan Tool for OBDII Vehicles

      3.Re-post the dtc's in here " answer question " for further assistance.

      Note: we need the dtc's to identify the sensor, there are a dozen different ELECTRONIC sensors to operate the car.

      Visit this site and see all the different sensor definitions.

      Powertrain Control Module (PCM)
      Throttle Position (TP) sensor
      Mass Air Flow (MAF) sensor
      Intake Air Temperature (IAT) sensor
      Idle Air Control (IAC) valve
      Engine Coolant Temperature (ECT)
      Heated Oxygen Sensor (HO2S)
      Camshaft Position (CMP) sensor
      Knock Sensor (KS)
      Vehicle Speed Sensor (VSS)
      Crankshaft Position (CKP) sensor
  • AutoMD Member
    AutoMD Member - 2001 Subaru Legacy - Engine - 7/19/2014
    Engine won't turn over
    Driving down the highway, oil temp light and transmission light came on. Drove for a short distance then the engine stalled and I coasted to a stop. Lights, radio etc still work but car won't restart. Just a weird clicking noise
    • jdl
      7/19/2014 jdl
      Does the starter motor crank ok? If so, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, check fuel pressure.

      How long since a tune-up? Check for applicable trouble codes. Battery has a full charge?
      7/19/2014 AutoMD Member
      Thanks for replying. The starter does not crank. Battery does have a full charge.
      7/19/2014 jdl
      Is the engine froze-up? Next, I'd check voltage and ground circuits at the starter motor. Any testing at the starter make sure the tranny is in park or neutral and the parking brake is set.
  • AutoMD Member
    AutoMD Member - 2002 Subaru Forester - Engine - 7/7/2014
    Why is my AC turning hot at stop lights or when the car is in park?
    I drive a 2002 Subaru Forester. When you first turn on the car and turn the AC on, everything works properly. The AC works properly when it the car continues driving (like on a highway for example), but when the car is sitting in park or at a stop light for a longer ...
    • CVO
      7/7/2014 CVO
      Check the radiator and the condenser ( if equipped ) fans to see if both are running when the AC is on. Check the condenser for any debris stuck on it, use the water from the garden hose to remove the debris.

      Note: when the the car continues driving, the ram air will help to remove the heat from the condenser.
  • AutoMD Member
    AutoMD Member - 2002 Subaru Forester - Engine - 7/7/2014
    Why is my AC turning hot at stop lights or when the car is in park?
    I drive a 2002 Subaru Forester. When you first turn on the car and turn the AC on, everything works properly. The AC works properly when it the car continues driving (like on a highway for example), but when the car is sitting in park or at a stop light for a longer ...
    0 answer
  • AutoMD Member
    AutoMD Member - 2008 Subaru Forester - Engine - 7/5/2014
    What should a timing belt change cost?
    My Forrester has hit 100000 miles and needs timing belt change.
    • HouseCallAuto
      4/12/2014 HouseCallAuto
      Rounded numbers with water pump replace at same time $700 .
    • REX03
      7/4/2014 REX03
      Depends if dealer or local shop in area. I bought all my parts and local shop was 490 labor..
    • Jimm
      7/5/2014 Jimm
      Check the on-line auto parts sources; many list the timing components kit (including the water pump) such as the Gates part # TCKWP304A from around $170.00 for your vehicle.

      The parts are readily available from these many on-line sources,,,,, - to list only a few possibilities.
      In fact, they (RockAuto) list the timing components kit from around $170.00 for your vehicle. The kit contains; Water Pump, Timing Belt, Cam Belt Tensioner Assembly, 3 Cam Belt Idler Pulleys, Detailed Instruction Sheet.

      Of course, this is the cost for the parts only - shop the website; to obtain estimate / repair quote for the labor cost for this repair.
  • AutoMD Member
    AutoMD Member - 2006 Subaru Outback - Engine - 6/28/2014
    Why isn't either of my fans working ?
    my car has 33,000 miles on it . neither of the radiator fan are turning on causing vehicle to overheat at stop lights and a/c to blow warm air, driving down road car cools down and a/c blows cold. what could be causing fans not to work ?
    • CVO
      6/28/2014 CVO
      Apply a direct 12 volts to the fan connectors to see if the fans are working.
      In the case the fans runs, check their relays.
  • AutoMD Member
    AutoMD Member - 1999 Subaru Impreza - Engine - 6/10/2014
    What is wrong with my coolant system?!
    Someone please help!!! earlier I was trying to fix a coolant leak from the thermostat housing, so I took the cover off and wiped off any gunk around then I put the cap back on, when I started my car and drove it for about 10 minutes I noticed it read C for cold at ...
    0 answer
  • TheDude
    TheDude - 2005 Subaru Impreza - Engine - 5/10/2014
    Why did my engines temperature spike all of a sudden?
    Have not driven my car for about a month, but turned it on 1 week ago. Now I take it out, get on the freeway and did not notice the temperature till I got off at an exit. Thermostat is good and fans are working. No leaks, hiss or smoke.
    • CVO
      5/10/2014 CVO
      Loss of coolant because of a coolant leak is probably the most common cause of engine overheating. Possible leak points include hoses, the radiator, heater core, water pump, thermostat housing, head gasket, freeze plugs, automatic transmission oil cooler, cylinder head(s) and block.

      Make a careful visual inspection of the entire cooling system, and then PRESSURE TEST the cooling system and radiator cap. A pressure test will reveal internal leaks such as seepage past the head gasket as well as cracks in the head or block. A good system should hold 12 to 15 psi for 15 minutes or more with no loss in pressure. If it leaks pressure, there is an internal coolant leak (most likely a bad head gasket but possibly also a cracked cylinder or engine block).

      It is important to pressure test the radiator cap, too, because a weak cap (or one with too low a pressure rating).

      Perform a cooling system / radiator pressure test when the engine is cold - as a first step to locate the leak.
      Obtain a loaner tool / free radiator pressure tester from the local auto parts stores such as Autozone, O'Reilly, NAPA, Advance Auto, or PepBoys. Follow their instructions and pump it to an adequate air pressure 12 -15 psi or the pressure rating listed on the radiator or reservoir cap. Observe the leaks and perform the repair.
      Note: do not over pressurize beyond the pressure allowed by the radiator cap, then test the radiator cap as well.

  • AutoMD Member
    AutoMD Member - 2009 Subaru Forester - Engine - 5/3/2014
    Why do my engine light, stability control light, and cruise control lights still come on?
    The car was recalled to replace the front catalytic converter and re-program the ECM. Since then, the rear catalytic converter, ignition coil, and spark plug wires have been replaced and the throttle body has been cleaned. However, the engine light, stability ...
    0 answer
  • AutoMD Member
    AutoMD Member - 2005 Subaru Forester - Engine - 4/21/2014
    Engine runs smoothly but have a loud knocking sound
    No smoke or leaks
    0 answer
  • AutoMD Member
    AutoMD Member - 2004 Subaru Baja - Engine - 4/16/2014
    Engine stalls at idle when my blower motor is on.
    My 04 Baja turbo engine stalls when my blower motor is on for AC or heater. This happens when I slow for a stop or when I idle at a stop. If I turn blower off prior to slowing down/stopping, the engine does not stall.
    • HouseCallAuto
      4/16/2014 HouseCallAuto
      Try cleaning the throttle body, disconnect the battery terminals, relearn the idle speed. Also clean the mass air flow sensor. The electrical load that is placed on the alternator from the blower causes the idle to drop which means the idle is probably already too low even before it stalls.
  • AutoMD Member
    AutoMD Member - 1996 Subaru Legacy - Engine - 4/15/2014
    EJ22 just replaced head gaskets, timing belt and clutch. Starts right up and runs for ten minutes then dies. What's up?
    Dashboard idiot lights stay dimly lit after key has been removed. Must disconnect battery to clear. Engine sounds a little more 'clicky' then before repair but runs good when running. Electrical connections all seem good. Can not run long enough to figure anything ...
    • HouseCallAuto
      4/15/2014 HouseCallAuto
      Plug in a code reader and see what fault code is stored. This step cannot be skipped. As far as the head gasket on backwards, maybe. No way to know unless you pull it apart but if there is no overheating then whether the gasket is on backwards makes no difference for the purposes of figuring out the stall. So I assume that after it stalls it does not restart for ? minutes? And I assume that there is no ignition spark?
  • AutoMD Member
    AutoMD Member - 2004 Subaru Legacy - Engine - 4/7/2014
    What's error code "Er Pd" in odo/trip meter mean?
    My customer's odo/trip meter has shown error code as "Er Pd" for a while and cannot start engine after that. What's problem with this? I try to find the meaning of error code in service manual but do not find anything as Er Pd. Please answer or give me more ...