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Subaru engine repair questions and answers

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  • bob s
    bob s - 2006 Subaru Baja - Engine - 12/29/2010
    Bucking with check engine light on
    car is slightly bucking when stopping and starting at traffic lights,bucking stops when car is in motion,check engine light going on and off. what is causing this?
     
    • david
      12/29/2010 david
      have engine lite tested find what code is in car
    • Friz
      12/29/2010 Friz
      Go to Autozone and they will pull the codes for you at no cost. Once you have the codes, go on google and put in you vechile make, model, year and the codes provided by autozone. It should give you a better indication of where the problem may reside.
  • johnnyrock
    johnnyrock - 1999 Subaru Impreza - Engine - 12/28/2010
    Need to replace fuel sending unit
    how to and where is it. can I get to it going into floor?
     
    • yboy82
      12/28/2010 yboy82
      It’s inside your fuel tank.

      You should relieve the fuel system pressure first by disconnecting the fuel pump connector from the fuel pump relay. And then crank the engine for 5 seconds or more to relieve the pressure. If your engine starts during cranking allow it to run until it stalls. And then disconnect the negative battery cable.

      Remove rear seat bottom, to reach the fuel pump access cover, if not already done. And then remove your fuel pump cover mounting bolts and the cover. Detach tlectrical harness from the pump assembly

      You should label the fuel lines before disconnecting them from the pump. Remove the fuel lines from the fuel pump. Remove the 8 fuel pump mounting nuts and then remove the fuel pump assembly from the tank

      yboy82
      12/29/2010 johnnyrock
      Thanks a lot. This a car I bought and the gas gage doesn't work. Other than that it looks ok to me. Been driving VW's and it's been a while since I've owned a Japanese car. This looks like fun.
  • sthrnone
    sthrnone - 2001 Subaru Forester - Engine - 12/26/2010
    #2 misfire, changed plugs and wires, do not know how to proceed
    186,000 miles, appears to misfire when cold, will go away then reoccurs when the vehicle is hot. just bought the car had to replace valve cover gaskets due to oil in spark plug tubes, replaced cracked radiator and thermostat, changed the oil and replaced air filter, ...
     
    • J and K AUTOMOTIVE TOWING AND REPAIR
      from your question i see one thing you fail to mention is that when you was getting oil in spark plug tubes you did not clean out the tubes so i gather you just pulled out the plugs ? letting the oil to go into the chambers if this is true then you may have fouled out the new plugs i would take out the plugs and reinspect them..............good luck............happy holiday
      J and K AUTOMOTIVE TOWING AND REPAIR
      12/25/2010 sthrnone
      I did the best i could to get it all out...but of course some went into the cylinders...i will pull them out and reinspect them, thank you
    • david
      12/25/2010 david
      ck compression
    • sean
      12/26/2010 sean
      if it has fuel injectors for each cylinder, you might have a bad injector
  • dave99
    dave99 - 1993 Subaru Legacy - Engine - 12/23/2010
    Wont start changed coil still wont start have spark on front 2 nothing on back two changed ing control mod same
    metered control mod have power on 2 of the 4 wires driver side wires dead have spark on front 2 back 2 are dead
     
  • John
     
    • HouseCallAuto
      5/16/2010 HouseCallAuto
      I'm pretty sure the weight should be 5w30 but check your owners manual.
    • snogroomer
      12/20/2010 snogroomer
      5w30 for the winter and 10w40 for the summer
  • russ
    russ - 1983 Subaru GL - Engine - 12/20/2010
    When replacing the starter, I lost the short bolt. No one, including the dealership, can give me the specs. in order to
    All I need is the bolt size in order to buy a replacement.
     
    • vince^_^
      7/26/2010 vince^_^
      I can’t find the specification to the bolt that you need. But you can also go to a machine shop they make bolts and other stuff. They can measure it up or make a new bolt for you and rethread the bolt hole in your starter.
    • snogroomer
      12/20/2010 snogroomer
      any standard metric bolt that has the same threads as the long bolt to the starter will work so long as it is the same length as the original shoet bolt
      snogroomer
      posting 5 months old think they fixed it already
  • Ray
    Ray - 1998 Subaru Legacy - Engine - 12/20/2010
    What is the location of the knock sensor
     
    • snogroomer
      12/20/2010 snogroomer
      knock sensor is located in the top center of engine just under the back side of the intake manufild. Just on the right side of the throttle body
    • J and K AUTOMOTIVE TOWING AND REPAIR
      It is underneath the intake manifold. If you look straight down from your throttle body, you will see a sensor with one wire coming out and a bolt going through the middle of it, that is the knock sensor.


  • steady24
    steady24 - 1999 Subaru Impreza - Engine - 12/20/2010
    Security system reset
    In a rush I put the battery terminals on backward for a second and my car has a security system, now I have to push the security button everytime why'll I'm starting it. Is there a way to reset the system?
     
    • Nissan Technical Advisor
      Yes, but this may require you to use scan tool to reset your seurity system.

      I recommend you to use "Find a Shop" feature of AutoMD for shops nearest you
    • snogroomer
      12/20/2010 snogroomer
      disconnect battery, wait about ten minutes and then reattach battery, then use the remote - lock and then unlock the car....that will reset the codes and that should solve the prblem
  • tane
    tane - 1996 Subaru Legacy - Engine - 12/20/2010
    Were is oil filter were is oil filter
    were is oil filter
     
    • yboy82
      9/17/2010 yboy82
      Oil filter are usually mounted in your cylinder block near you oil pan. Go under your vehicle and remove the engine splash shield if applicable before you can see the oil filter.
    • snogroomer
      12/20/2010 snogroomer
      oil filter is located on the bottom side of the engine block, in front of the oil pan
  • albert
    albert - 2000 Subaru Forester - Engine - 12/20/2010
    The resevour get fill with fkuid and it does not return back to the radiator what do you thing could be the problem?
    200k miles i replace radiator, termostat, radiator cap, valve job, there is not smell in the inside or stem in the winshield
     
    • TechSam
      11/22/2010 TechSam
      Maybe there is lots of air in the system, make sure all the air is out if the problem is still there then you may need a head gasket Albert.
    • leonard
      12/6/2010 leonard
      I have a diff. location to look at first. the resevoir cap may be leaking air . the resevoir will only work if air tite.
    • snogroomer
      12/20/2010 snogroomer
      If you burp tank fills from the radiator and doesn't return to the rediator check burp tank for oil residue. If oil residue is present, then it is most likely a bad head gasket, Good Luck
  • Juan Barrientos
    Juan Barrientos - 1995 Subaru Legacy - Engine - 12/19/2010
    Where the tenperature sensor is located?
     
    • TechSam
      12/19/2010 TechSam
      Temp sensor is normally located on thermostat housing or around there, it has one wire going to it and is grounded to the engine.
  • max
    max - 1986 Subaru GL-10 - Engine - 12/15/2010
    PRESENTLY LOOKING FOR AN AUXILIARY AIR VALVE
    THE OEM PART NUMBER IS14467-AA001
     
    • Bobby
      12/15/2010 Bobby
      your probably only going to find this at dealer or at junk yard.
  • drm
    drm - 2006 Subaru Forester - Engine - 12/15/2010
    Mistakenly filled with diesel fuel
     
    • ref
      12/15/2010 ref
      Drain diesel fuel and put in new gas.It should be ok after.Could run rough for a short time after.
  • Hans  Broecking
    Hans Broecking - 2000 Subaru Legacy - Engine - 12/14/2010
    Why is there an odor of gas coming through the vents when i turn on the heat?
    I just had an exhaust leak fixed. My mechanic thought that was the source of the odor, but it is still there, just not as thick. It eventually goes away if i'm driving for more than 15 mins. Could something be leaking into the heater core?
     
    • J and K AUTOMOTIVE TOWING AND REPAIR
      I believe you have a small fuel leak and when you turn the heater on it is sucking vapors into the passenger compartment through the fresh air intake.Check the fuel delivery system,and the fuel lines and all connections to find the source.Good Luck
  • joe joyce
    joe joyce - 2004 Subaru Outback - Engine - 12/13/2010
    Ac shuts off as engine speed varies
    ac shuts off as the engine speed varies
     
    • yboy82
      12/13/2010 yboy82
      Did you already check for any vacuum leaks? What have you done so far to fix your vehicle?