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Toyota engine repair questions and answers

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  • nacho
    nacho - 1996 Toyota Avalon - Engine - 3/25/2014
    What is wrong with my car??
    6 months ago i got code p302 and p304, at that time i replaced the three front spark plugs (for cyl. 2, 4, 6) and the three coil packs, now CEL came on again i and now i got p300, p302, p304 and p306 codes, any ideas why this happened? last time house of autos ...
     
    • HouseCallAuto
      3/25/2014 HouseCallAuto
      Replace both upstream O2 sensors and if that does not solve it then you have a clogged catalytic converter on that bank.
  • thomas deveaux
    thomas deveaux - 2006 Toyota Tundra - Engine - 3/25/2014
    My car jerks when I tried to accelerate now
    What makes the car jerk when you mess the gas then the car speed up
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2002 Toyota Celica - Engine - 3/24/2014
    P0171 for a 2002 Toyota Celica
    So I used to have multiple codes pop up for my car; and it lead me to change my intake manifold. This cleared off all codes except the p0171. Then I took my car to a mechanic and they: replaced the MAS, replaced the A/F sensor, and replaced the o2 sensors but ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2001 Toyota Tacoma - Engine - 3/23/2014
    Blowing Fuses on am 2 circuit
    Why is it blowing fuses on the AM 2 circuit, but won't blow it with mass air flow sensor disconnected
     
    • alex
      3/23/2014 alex
      Ohm check your mass air flow sensor. You shouldn't have low ohms anywhere in the plug. I would say its shorted inside but I would check it first. Those are kind of spendy

  • AutoMD Member
    AutoMD Member - 1997 Toyota Corolla - Engine - 3/22/2014
    Battery and starter checked out good, fuses all good. car wont turn over clicks only when ignition at starting position.
    what else would cause the car not to start
     
    • HouseCallAuto
      3/22/2014 HouseCallAuto
      Describe the click or clicking. A single heavy click or clicking that keeps clicking for as long as you hold the key in the start position? Turn on the headlamps and stand in front of the cxar so you can clearly see the headlights on. Have someone else turn the key to start the engine and look at what happens to the headlights. Do they go dim or shut off or there is not much change at all?
    • AutoMD Member
      3/22/2014 AutoMD Member
      there is a single click when starting the car. head lights go dim, click and swishing sounds from starter
    • HouseCallAuto
      3/22/2014 HouseCallAuto
      So if the headlights dim out then that indicates a battery issue. Try the same test again only this time have jumper cables attached and see if it starts up.
  • AutoMD Member
    AutoMD Member - 2001 Toyota Tacoma - Engine - 3/22/2014
    Blowing Fuses on am 2 circuit
    Why is it blowing fuses on the AM 2 circuit, but won't blow it with mass air flow sensor disconnected
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2003 Toyota Avalon - Engine - 3/20/2014
    I have alot of stuff going on please read additional details.
    My sister got into an accident. I replaced the front bumper, grille, driver side headlight. After this was replaced the Trac Off light, VSC light and ABS light all came on and her radio wasn't functioning. I scanned her computer and found no fault codes. she has ...
     
    • HouseCallAuto
      3/20/2014 HouseCallAuto
      There are abs codes and the scanner you are using can only read engine codes (P-Codes) so buy a code reader that is abs capable. When there is an abs code of any kind the computer will disable the traction control system and the abs and will illuminate both lights. As for the speedo and tach, that sounds like a bad cluster.
  • AutoMD Member
    AutoMD Member - 2003 Toyota Avalon - Engine - 3/20/2014
    Trac off, VSC, ABS NO radio, now RADIO works and speedo and tach dont. VSC ABS TRAC OFF Light still on.
    My sister has a 2003 Toyota Avalon v6 3.0l she got into an accident. I replaced the front bumper, grille, driver side headlight. After this was replaced the Trac Off light, VSC light and ABS light all came on and her radio wasn't functioning. I scanned her computer ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1998 Toyota Camry - Engine - 3/18/2014
    Random symptoms, don't know if related. 183k+ miles, had car for last 7k, these started one by one a couple months ago
    -Engine RPM's fluctuate when idling after starting, before shifting into drive (approx. 100 RPM-range in either direction; stabilizes once shifted into drive) -1st gear acceleration more sluggish than it used to be (takes a long time to get up to speed from a full ...
     
    • Jimm
      3/18/2014 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

      The fuel smell may be related to fuel system leaks; fuel line, fuel filter, clogged charcoal canister (evaporative system), fuel injector seals.
  • Jeff
    Jeff - 1999 Toyota 4Runner - Engine - 3/18/2014
    99 4runner coolant leak
    coolant leak on the drivers side, front end of the motor. Top and bottom radiator hoses are dry. does not leak all the time. Removed skid plate to look for leak. Can't see anything. Assume it's the water pump but it is covered up by other motor parts.
     
    • HouseCallAuto
      3/17/2014 HouseCallAuto
      Probably is the water pump.
      HouseCallAuto
      3/17/2014 Jeff
      is there any way to test the water pump while it's on the truck?
    • Jimm
      3/17/2014 Jimm
      Have an inexpensive (or free - with loaner tool from local parts stores) cooling system pressure test performed to determine the coolant leak source.

      If the water pump is the culprit - use these resources for the repair steps involved; www.autoMD.com 'How-To-Guides' and the website; www.autozone.com.

      The parts are readily available from these many on-line sources, www.partsgeek.com, www.rockauto.com, www.discountautoparts.com, www.autopartswarehouse.com, www.jcwhitney.com - to list only a few possibilities.
      In fact, they (RockAuto) list the water pump from around $25.00 (with gasket) for your vehicle.
      Jimm
      3/17/2014 Jeff
      will the pressure test tell me it's the water pump or only tell me if the radiator is leaking
    • Jimm
      3/18/2014 Jimm
      Yes, the cooling system pressure test - with the engine cold - will show the specific leak point, wherever the system is leaking.
  •  cecilgracey
    cecilgracey - 2008 Toyota Tacoma - Engine - 3/16/2014
    How to get water out of fuel tank
    Well I just know it has water in tank for it has been sitting up a long time with just a little fuel in tank
     
    • John's Auto Repair
      3/16/2014 John's Auto Repair
      Besides having water, the fuel itself has gotten stale. Which means dropping the fuel tank and
      draining out the contents.
  • AutoMD Member
    AutoMD Member - 1989 Toyota Corolla - Engine - 3/14/2014
    Car Making Knocking Noise as I accelerate
    when my car is in park is sounds perfect. But as I put it in drive and accelerate it starts to make this knocking noise and gets louder the faster I go it sounds to be coming from the right side of the engine where all the belts and stuff are could it be the timing ...
     
    • HouseCallAuto
      3/14/2014 HouseCallAuto
      Could be the timing belt area, this engine does not have a tioming chain. Hard to say what the cause is. I cannot get to hear it.
      HouseCallAuto
      3/14/2014 AutoMD Member
      Yea, I found out last night looking around on the net, that it does not have a timing chain. So I was kind of guessing the timing chain as well. Thanks for your advice.
  • AutoMD Member
    AutoMD Member - 1989 Toyota Corolla - Engine - 3/13/2014
    Why does my engine knock when i accelerate and get louder the faster I go
    When my car is in park it sounds great as I accelerate it starts to make this knocking noise coming from the right side of the engine. As I go faster the noise gets louder. It is coming from the side where all the belts are and stuff
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1989 Toyota Corolla - Engine - 3/13/2014
    Why does my engine knock when i accelerate and get louder the faster I go
    When my car is in park it sounds great as I accelerate it starts to make this knocking noise coming from the right side of the engine. As I go faster the noise gets louder. It is coming from the side where all the belts are and stuff
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2006 Toyota Corolla - Engine - 3/12/2014
    My battery kept dying so I bought a new one and tested the starter and alternater and it is still dying.
    Had the starter and alternater checked and my battery keeps dying and will not hold a charge.
     
    • HouseCallAuto
      3/12/2014 HouseCallAuto
      Try disconnecting the negative battery terminal each time the vehicle is parked for the period of time that you do not drive it and if the battery remains charged then you have a drain on the battery which will have to be diagnosed.
      HouseCallAuto
      3/13/2014 AutoMD Member
      thank you very very much for your help and advice-you are the first person to give me a straight answer
 
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