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Toyota engine repair questions and answers

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  • AutoMD Member
    AutoMD Member - 1995 Toyota Camry - Engine - 3/11/2014
    Car temperature gauge goes to red at high speeds but went i put the ac on or slow down the car gauge go back to normal
    and at idle it run normal
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2007 Toyota Camry - Engine - 3/10/2014
    There is a humming noise coming from under the hood.
    The humm starts when I start up and increases if I rev the engine and while I drive it increases as the speed increases
     
    • Jimm
      3/10/2014 Jimm
      First step raise the hood and observe the source of the noise with the engine operating. Post a reply with results for further assistance.
  • nacho
    nacho - 1999 Toyota Camry - Engine - 3/9/2014
    I got code p0446 , what is that mean? And what should i check??
    I check online it say to check the evap valvle vent, but i do not know what this is or where is located any help would be appraciate!!
     
    • Jimm
      3/9/2014 Jimm
      P0446 = Evaporative Emission Control System Vent Control Circuit Malfunction

      A code P0446 could mean one or more of the following has happened:

      Faulty vent valve
      Open, short or excessive resistance on Vent valve control circuit
      Blockage of vent valve
      Bad PCM

      Possible Solutions:
      With a P0446 OBD-II trouble code, here are some things to try:

      Replace Vent valve
      Repair open, short, or resistance problem in control circuit
      Repair open, or short, or resistance problem in power circuit
      Replace PCM

      The EVAP vent valve is the electrical valve (the VSV valve), which is located under the hood near the strut tower. Next you have the canister assembly, located under the car near the rear.
      Also there is a TSB posted to correct a P0446 trouble code by installing part # 25852-20010 (EVAP hoses at the canister)
  • Katie
    Katie - 1997 Toyota RAV4 - Engine - 3/9/2014
    Fuel injectors or fuel pump problem?
    Day 1: Stopped at stop sign, traffic clears, take foot off brake and give a little gas, engine shuts off for about 2 seconds then I continue on my way. A few hours later, I leave my house again and half way through my trip, the check engine light comes on. Day 2: ...
     
    • Jimm
      3/9/2014 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.

      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
  • Katie
    Katie - 1997 Toyota RAV4 - Engine - 3/9/2014
    Fuel injector or fuel pump problem?
    Day 1: Stopped at stop sign, traffic clears, take foot off brake and give a little gas, engine shuts off for about 2 seconds then I continue on my way. A few hours later, I leave my house again and half way through my trip, the check engine light comes on. Day 2: ...
     
    • Jimm
      3/9/2014 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.

      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
  • AutoMD Member
    AutoMD Member - 1999 Toyota Camry - Engine - 3/8/2014
    AREPARTS COMPATINLE WITH CORROLLAS
    I HAVE A 99 CAMRY AND WONDERING IF ANY PARTS FROM A 94 COROLLA ARE COMPATIBLE
     
    • Jimm
      3/8/2014 Jimm
      Which parts? Likely very few - maybe from the engine or transmission.
    • HouseCallAuto
      3/8/2014 HouseCallAuto
      No there are virtually no parts that are compatible from a Corolla to a Camry. Maybe the oil cap and radiator cap.
  • nacho
    nacho - 1999 Toyota Camry - Engine - 3/7/2014
    I got code p0446 what should i check??
    I check online it say to check the evap valvle vent, but i do not know what the valvle vent is or where it is,any help !!
     
  • Russman
    Russman - 1998 Toyota Camry - Engine - 3/7/2014
    Why does my car's heat work intermittently and while its not working it wants to overheat the engine?
    I had a coolant leak for a bit when I first bought the car, early in 2014. I ended up going through the engine and checking all the hose fittings in an attempt to find the leak. I didn't find anything major so I ran one of those no leak radiator treatments through ...
     
    • HouseCallAuto
      3/7/2014 HouseCallAuto
      It seems that you are describing what happens when the cooling system is low. No place in your details have you stated that you confirmed that the cooling system is not at this moment as these symptoms are happening - low on coolant.
  • AutoMD Member
    AutoMD Member - 2005 Toyota 4Runner - Engine - 3/7/2014
    2005 toyota 4runner ecm change
    will a ecm from a 2004 toyota 4runner sr5 4x4 4.7 fit in a 2005 toyota 4runner sr5 4x4 4.7 without it the ecm being flashed?
     
    • Jimm
      3/7/2014 Jimm
      The ECM (engine control module) will need to be reflashed / set up elctronically for your particular vehicle - whenever the ECM is replaced with another unit.
      Jimm
      3/7/2014 AutoMD Member
      even if the two 4runners match up as far as motor and model?
    • Jimm
      3/7/2014 Jimm
      Yes, that is correct - any ECM change would necessitate a reflashing / reprogramming due to the vehicle parameters being unique to the individual vehicle.
  • AutoMD Member
    AutoMD Member - 2005 Toyota 4Runner - Engine - 3/7/2014
    Ecm for a 4runner change over
    will a ecm out of a 2004 toyota 4runner 4x4 4.7 match up with a 2005 toyota 4runner 4x4 4.7 without having to flash it?
     
    • Jimm
      3/7/2014 Jimm
      The ECM (engine control module) will need to be reflashed / set up elctronically for your particular vehicle - whenever the ECM is replaced with another unit.
  • AutoMD Member
    AutoMD Member - 2000 Toyota Camry - Engine - 3/2/2014
    What could be the problem with stucked accelerator pedal, not all the time.
    Car runs fine, and accelarates with no problems, sometimes when stops, accelerator pedal gets hard and in order to move, has to be pushed really hard down to the floor.
     
    • alex
      3/2/2014 alex
      i put a holley throttle body on a pickup once and if you let off the pedal fast the throttle would go too far and get stuck in the throttle body. try pushing the pedal down then slipping your foot off to the side and let it snap up frome there unhook your throttle cable and see where its stiff. throttle and breaks are a big deal though if you have had to stomp on the pedal a couple times i would look at replacing the cable just to be safe.
  • AutoMD Member
    AutoMD Member - 2009 Toyota Matrix - Engine - 3/2/2014
    Check engine light came on
    Driving for 10 hour check engine light came on stall at toll booth, started right up kept driving till i came to a complete stop again. will run after I restart car as long as i dont stop
     
    • Jimm
      3/2/2014 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 stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA, etc. 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. There are literally hundreds of possible fault codes and therefore numerous reasons for the MIL condition.

      This step is important - retrieving the stored fault code and relaying this detail - will provide good information to assist in diagnosing and repairing the issue you are having.
  • AutoMD Member
    AutoMD Member - 1993 Toyota Pickup - Engine - 3/1/2014
    What would cause my truck to die when put in gear
    changed the plugs and wire
     
    • John's Auto Repair
      Does this happen when the engine is cold as well as warmed up? You may have carbon
      buildup on the throttle plate as well as the throttle bore. I would have the throttle body
      cleaned
  • AutoMD Member
    AutoMD Member - 2006 Toyota Highlander - Engine - 2/28/2014
    The heater in my truck doesnt work blow warm air unless i am on the highway or excellerating
    There is antifreeze in the radiator and overflow tank
     
    • John's Auto Repair
      2/28/2014 John's Auto Repair
      If you are certain that the radiator is full and has been bleed, then you may have a partially
      restricted heater core.
  • AutoMD Member
    AutoMD Member - 2006 Toyota Highlander - Engine - 2/28/2014
    Heater only blows cold air out unless i am excellerating or on the highway.
    The radiator antifreeze is full and so is the overflow tank.
     
    0 answer
 
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