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Toyota engine repair questions and answers

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  • Dale
    Dale - 2001 Toyota RAV4 - Engine - 9/12/2014
    I need to replace the catalytic converter and the car is from Calf. and now in Washington St. Can I use a 49 state cat?
    Is there any difference in the rest of the equipment?
    • Jimm
      9/12/2014 Jimm
      Purchase the converter legal for the state the vehicle is operated in; if Washington - then the 48 states model is correct.
      Check the various on-line vendors;,,, to list only a few. In fact, they (RockAuto) list the catalytic converter from around $318.00 for your vehicle.
  • George
    George - 1997 Toyota Land Cruiser - Engine - 9/12/2014
    Car runs poorly hesitates, no powere
    273k mi. ecu replaced. ran fine for about 2 weeks
    • Jimm
      9/12/2014 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
  • Ali
    Ali - 1995 Toyota Camry - Engine - 9/5/2014
    Oil leak from engine oil pump seal I changed the seal but the seal pop up when I starts the engine and keep happening
    every time I change the oil pump seal and starts the engine the seal pops up and teaches the oil pump pulley and starts leak again. plz help me.
    0 answer
  • Ali
    Ali - 1995 Toyota Camry - Engine - 9/5/2014
    Oil leaks from oil pump seal and I changed the seal but the problem is when I start the car the seal pops up and leaks a
    plz any body help me I am in big trouble. every time I put new seal the seal pops up again and starts leaking.
    0 answer
  • Drose
    Drose - 2002 Toyota Camry - Engine - 8/31/2014
    Just replaced my battery, The car will fire up but none of the electrical items work
    the car will not even go into gear, the tachometer, radio, or any other electrical item. works. Is it the alternator?
    0 answer
  • cycy12
    cycy12 - 1988 Toyota Supra - Engine - 8/26/2014
    What is all possibilities of what wrong with my 88 supra I put the battery on backwards while the ignition was on
    The fusible link burnt out on the fuse box on the engine a and I replaced it and the ECU and it still won't start. It will trim over when I crank it but it just won't start.
    0 answer
  • Dave
    Dave - 1996 Toyota Camry - Engine - 8/26/2014
    Car starts and shuts off
    Replaced fuel pump distributor wires plugs emptied gas tank fuel and air filters
    0 answer
  • Dodgeman
    Dodgeman - 1997 Toyota Camry - Engine - 8/25/2014
    Will not Start tryed different things Like new Fuel pump and computer but still nothing
    I have a 1997 Toyota Camry it just up and died on me and now will not start I put in a new fuel pump and computer check to see if it was getting fuel and fire but it still wont start tried starting fluid nothing the fuel pump runs when trying to start it but not ...
    0 answer
  • unobs
    unobs - 2008 Toyota RAV4 - Engine - 8/24/2014
    Car makes low pitched rumbling burping sound on start. Only heard on start and car seems to run fine. Any ideas?…
    It sounds like it's coming from underneath or in back. Could it be water in the exhaust-muffler that shouldn't be there?
    0 answer
  • vijaya
    vijaya - 2014 Toyota Sienna - Engine - 8/24/2014
    Flashing engine light,today.This light has been on along with the VSC light for several years.
    There were no problems driving the vehicle when the engine light was on for all these years.Neither did I feel any problem driving it for 3 miles after it started to flash.
  • rdornon
    rdornon - 1992 Toyota 4Runner - Engine - 8/23/2014
    Oil leak appears to be coming from above the oil pan
    does it right away,spews evrywhere while driving,no check engine light on,appears to be coming from above the front of the oil pan,is there a crank seal in that area?
    0 answer
  • Jeff
    Jeff - 1987 Toyota 4Runner - Engine - 8/22/2014
    When the dipstick is pulled with the engine running, the idle rpm drops. What could cause this?
    4 cylinder naturally aspirated gas engine.
    • jdl
      8/22/2014 jdl
      Check your pcv system. Crankcase ventilation should be a closed system. When you pull the dip stick your creating a vacuum leak, that can effect your idle.

      A faulty gasket can also cause a vacuum leak.
  • Slavetoyoda
    Slavetoyoda - 1994 Toyota Pickup - Engine - 8/20/2014
    Water poured into radiator will run out of oil pan
    Replaced cylinder head after 230,000 miles. Started for 5 perfect seconds and died. Will not start up. Checked oil and now is mix with water. Distrubutor gears broke and wedge so there's why it will not start. Drained everything. I thought I'd see if water poured ...
    0 answer
  • robin clay
    robin clay - 1995 Toyota Corolla - Engine - 8/19/2014
    My car will start just fine ,but after drive it for 10 min. or so, it bogs out & there's an exhaust smell,can you help
    It will die after idling for about 5min. It will start back up again . I replaced the fuel filter & 02 sensor ,battery, & put fuel cleaner in it. Ran great for 2 months, now it's doing it again. HELP please ! I need to get to work.It does not leak oil or water & ...
    0 answer
  • AutoMD Member
    AutoMD Member - 2000 Toyota Camry - Engine - 8/15/2014
    Why does my car hesitate, buck and have a large decrease in fuel mileage?
    New spark plugs, wires and ignition coils. EGR new. Mass air sensor new. The engine runs smoothly at idle and when revved. Symptoms are fairly frequent when driving.
    • CVO
      8/5/2014 CVO
      The check engine light doesn't have to be ON to store a fault code.DO NOT SKIP THIS TEST.

      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 $ 18.49 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
      8/15/2014 AutoMD Member
      Sorry it took this long; but here are the Toyota codes:
      P1130 - Air/Fuel Sensor Circuit Range/Performance (Bank 1 Sensor 1)

      P1133 - Air/Fuel Sensor Circuit Response (Bank 1 Sensor 1)
P1135 - Air/Fuel Sensor Heater Circuit Response (Bank 1 Sensor 1)

      P1150 - Air/Fuel Sensor Circuit Range/Performance (Bank 1 Sensor 2)
P1153 - Air/Fuel Sensor Circuit Response (Bank 1 Sensor 2)

      P1155 - Air/Fuel Sensor Heater Circuit (Bank 1 Sensor 2)

      There are two generic codes:
      P0125 Coolant Temp (Thermostat was recently replaced so this may be an old code.)
      P0171 System too lean Bank 1 (seems likely related to all the Toyota codes.)
      AutoMD Member
      8/15/2014 CVO
      See this url and replace the Oxygen sensors apply in the view job diagram. Bank 1 is the bank with the odd cylinders 1, 3, 5

      note: preferred Denso brand, but they're expensive. See this site