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Honda engine repair questions and answers

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  • john
    john - 1993 Honda Civic - Engine - 3/22/2015
    Engine wont start. has fuel. has spark
    when trying to start car sounds flooded
     
    0 answer
  • john
    john - 1999 Honda Odyssey - Engine - 3/21/2015
    Engine fluctuates when going down road at 1400-1600 rpms.
    at lower or higher rpms it does not fluctuate
     
    • MANIKMECHANIK
      3/21/2015 MANIKMECHANIK
      Transmission slipping. If its a stick , clutch. If automatic could be as simple as a clogged filter or low fluid , if not those things then lean towards looking for another trans.
  • niknak
    niknak - 2003 Honda Accord - Engine - 3/21/2015
    My car starts but doesn't move.
    My 2003 Honda accord manual transmission starts fine can move into gears just doesn't accelerate. ?? Its not the clutch... I'm thinking maybe the celinoid or spark plugs or shiftfork possibly?? Hopefully maybe as simple as a loose cord??my car has 240000 miles on ...
     
    • Jimm
      3/21/2015 Jimm
      Why would this issue not be related to a worn clutch disc friction surface? What happens when the clutch pedal is depressed - and when the clutch is engaged? Sometimes, with a slipping or worn clutch, there will be a strong odor.

      Check these various on-line vendors; www.autopartswarehouse.com, www.RockAuto.com, www.partsgeek.com, to list only a few. In fact, they(RockAuto) list the clutch kit from around $180.00 for your vehicle.
  • niknak
    niknak - 2003 Honda Accord - Engine - 3/20/2015
    What is wrong with my car?
    My Honda has 240000 miles . it starts fine shifts fine it just doesn't move.. I noticed there was a problem a little time before cause I would put it into gear the rpms would rev but the car would start slow 20mph in 3rd gear. I know what it feels like when the ...
     
    0 answer
  • Hussain
     
    • Jimm
      3/16/2015 Jimm
      First step - have the stored fault codes or check engine light 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. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.

      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
  • Caitlyn
    Caitlyn - 1999 Honda Accord - Engine - 3/14/2015
    Can short trips ruin the engine? My car will not back up when I put it in reverse and go around corners
    It has 112,000 miles on it, I take short trips to and from work often where my engine doesn't get a chance to heat up, my dad keeps telling me that my car is dying because of those short trips so my first question is, can short trips ruin the engine? My second ...
     
    0 answer
  • AFFORDABLE ALIGNMENT,BRAKE,&SUSPENSION
    AFFORDABLE ALIGNMENT,BRAKE,&SUSPENSION - 2002 Honda Odyssey - Engine - 3/12/2015
    Vehicle at highway speed temp gauge spikes up to red line no heat present thru vents at this time also.doesnt overheat.
    has a new heater core 4 months old,new thermostat 4 months old, heater control valve working new water pump has been replaced also.
  • hodel
    hodel - 1999 Honda Civic - Engine - 3/11/2015
    Low idle, stalling issues. Battery light on. Code p0108 new map sensor, alternator, battery, plugs.
    Hey I could really use some help so I'll start from the beginning.About two weeks ago my 99 honda civic ex would jerk then stall whenever I came to a stop, then the battery light came on, I replaced the battery and still no success. My mechanic friend said it was ...
     
    • Jimm
      3/11/2015 Jimm
      Potential causes of a P0108 code:

      Bad MAP sensor
      Leak in vacuum supply line to MAP sensor
      Engine vacuum leak
      Short on signal wire to PCM
      Short on reference voltage wire from PCM
      Open in ground circuit to MAP
      Worn engine causing low vacuum

      Possible Solutions
      A good way to diagnose if the MAP sensor is to blame would be to compare the KOEO (key on engine off) MAP sensor reading on a scan tool with the Barometric pressure reading. They should be the same because they both measure atmospheric pressure.

      If the MAP reading is greater than 0.5 volt off of the BARO reading, then replacing the MAP sensor would likely fix the problem. Otherwise, start the engine and observe the MAP reading at idle. It should normally be about 1.5 volts (varies according to altitude).

      a. If it is, the problem is likely intermittent. Check all the vacuum hoses for damage and replace as necessary. You can also try wiggle testing the harness and connector to reproduce the problem.
      b. If the scan tool MAP reading is more than 4.5 volts, check the actual engine vacuum reading with the engine running. If it is less than 15 or 16 in. Hg, then the PCM is probably not seeing enough vacuum (due to a worn engine, perhaps) for a given operating condition (which causes a higher than normal voltage signal to the PCM) and setting the code. Repair the engine vacuum problem and retest.
      c. But, if the actual engine vacuum reading is 16 in. Hg or more, then unplug the MAP sensor. The scan tool MAP reading should indicate that there is no voltage present. Check that the ground from the PCM is intact and also that the MAP sensor connector and terminals are tight. If the connection is good, then replace the map sensor.
      d. However if, with KOEO, & the MAP sensor unplugged, the scan tool shows a voltage reading, then there may be a short in the harness to the MAP sensor. Turn the ignition off. At the PCM unplug connector and remove the MAP signal wire from the connector. Re-attach the PCM connector and see if with KOEO, the scan tool MAP reading shows voltage. If it still does, replace the PCM. If not, check for voltage on the signal wire you just removed from the PCM. If there is voltage on the signal wire, find the short in the harness and repair.
  • hodel
    hodel - 1999 Honda Civic - Engine - 3/11/2015
    Low idle, stalling issues. Battery light on. Code p0108 new map sensor, alternator, battery, plugs.
    Hey I could really use some help so I'll start from the beginning.About two weeks ago my 99 honda civic ex would jerk then stall whenever I came to a stop, then the battery light came on, I replaced the battery and still no success. My mechanic friend said it was ...
     
    • Jimm
      3/11/2015 Jimm
      Potential causes of a P0108 code:

      Bad MAP sensor
      Leak in vacuum supply line to MAP sensor
      Engine vacuum leak
      Short on signal wire to PCM
      Short on reference voltage wire from PCM
      Open in ground circuit to MAP
      Worn engine causing low vacuum

      Possible Solutions
      A good way to diagnose if the MAP sensor is to blame would be to compare the KOEO (key on engine off) MAP sensor reading on a scan tool with the Barometric pressure reading. They should be the same because they both measure atmospheric pressure.

      If the MAP reading is greater than 0.5 volt off of the BARO reading, then replacing the MAP sensor would likely fix the problem. Otherwise, start the engine and observe the MAP reading at idle. It should normally be about 1.5 volts (varies according to altitude).

      a. If it is, the problem is likely intermittent. Check all the vacuum hoses for damage and replace as necessary. You can also try wiggle testing the harness and connector to reproduce the problem.
      b. If the scan tool MAP reading is more than 4.5 volts, check the actual engine vacuum reading with the engine running. If it is less than 15 or 16 in. Hg, then the PCM is probably not seeing enough vacuum (due to a worn engine, perhaps) for a given operating condition (which causes a higher than normal voltage signal to the PCM) and setting the code. Repair the engine vacuum problem and retest.
      c. But, if the actual engine vacuum reading is 16 in. Hg or more, then unplug the MAP sensor. The scan tool MAP reading should indicate that there is no voltage present. Check that the ground from the PCM is intact and also that the MAP sensor connector and terminals are tight. If the connection is good, then replace the map sensor.
      d. However if, with KOEO, & the MAP sensor unplugged, the scan tool shows a voltage reading, then there may be a short in the harness to the MAP sensor. Turn the ignition off. At the PCM unplug connector and remove the MAP signal wire from the connector. Re-attach the PCM connector and see if with KOEO, the scan tool MAP reading shows voltage. If it still does, replace the PCM. If not, check for voltage on the signal wire you just removed from the PCM. If there is voltage on the signal wire, find the short in the harness and repair.
  • Bradley
    Bradley - 1991 Honda Accord - Engine - 3/8/2015
    My car stalls out intermittently while idling, has rough starts, Check Engine comes on after driving. What's wrong?
    On the advice of others I've replaced the air filter, added fuel injector cleaner, and checked the check engine flashing light code (0 = ECU; no ODB). I've also had the battery, alternator, and starter tested: all good. I have approx 240,300 miles on it. It seems to ...
     
    0 answer
  • Mike
    Mike - 1991 Honda Civic - Engine - 3/3/2015
    Engine skipping or missing badly during very cold outdoor temps
    Car starts all temps. Even after letting engine idle to normal engine temps, car shutters and skips when accelerating in sub freezing temps. Sometimes can't exceed 25 mph and have to pull over and shut car off or stall. It will restart and then run better but ...
     
    0 answer
  • deanna
    deanna - 2001 Honda Accord - Engine - 3/2/2015
    When you replace a radiator cap does it have to match your car make and model?
    I took my car in for a oil change, when he topped off my fluids the radiator cap was broken. There were no leaks In my radiator he put a cap that fit and said I was good to go. I questioned doesn't the cap have to match my car. He said it was from another Honda and ...
     
    • Jimm
      3/2/2015 Jimm
      Yes, the radiator cap must match your application. Not just any cap will fit or be correct. The model of cap should be; Stant part # 10333 (or equivalent) at 16 psi rating.

      What exactly did the radiator cap fit? What year,make and model of Honda? What is the pressure rating (PSI) on the suspect radiator cap?
  • deanna
    deanna - 2001 Honda Accord - Engine - 3/2/2015
    Does the radiator cap have to match the make and model of the car?
    Went in for an oil change, when he went to top the fluids found the radiator cap was broken he put a cap on that fit it was laying around the shop. I asked him doesn't the cap have to match my car he said I was good to go. The next day as I'm driving the radiator ...
     
    • Jimm
      3/2/2015 Jimm
      Yes, the radiator cap must match your application. Not just any cap will fit or be correct. The model of cap should be; Stant part # 10333 (or equivalent) at 16 psi rating.

      What exactly did the radiator cap fit? What year,make and model of Honda? What is the pressure rating (PSI) on the suspect radiator cap?
  • deanna
    deanna - 2001 Honda Accord - Engine - 3/2/2015
    Does the radiator cap have to match the make and model of the car?
    Went in for an oil change, when he went to top the fluids found the radiator cap was broken he put a cap on that fit it was laying around the shop. I asked him doesn't the cap have to match my car he said I was good to go. The next day as I'm driving the radiator ...
     
    • Jimm
      3/2/2015 Jimm
      Yes, the radiator cap must match your application. Not just any cap will fit or be correct. The model of cap should be; Stant part # 10333 (or equivalent) at 16 psi rating.

      What exactly did the radiator cap fit? What year,make and model of Honda? What is the pressure rating (PSI) on the suspect radiator cap?
  • deanna
    deanna - 2001 Honda Accord - Engine - 3/2/2015
    When you replace a radiator cap does it have to match your car make and model?
    I took my car in for a oil change, when he topped off my fluids the radiator cap was broken. There were no leaks In my radiator he put a cap that fit and said I was good to go. I questioned doesn't the cap have to match my car. He said it was from another Honda and ...
     
    • Jimm
      3/2/2015 Jimm
      Yes, the radiator cap must match your application. Not just any cap will fit or be correct. The model of cap should be; Stant part # 10333 (or equivalent) at 16 psi rating.

      What exactly did the radiator cap fit? What year,make and model of Honda? What is the pressure rating (PSI) on the suspect radiator cap?