Auto Answers » Engine » Toyota

Toyota engine repair questions and answers

Post your Toyota engine question or share what you know by answering questions

3789 Questions
Sort by:
  • AutoMD Member
    AutoMD Member - 1986 Toyota Corolla - Engine - 7/21/2014
    Why does my care die/stall when I stop and then step on the accelerator?
    This happens only when I first start driving but not all of the time. When it happens the engine seems flooded and sometimes will be hard to restart. Once I've been able to drive it a bit, especially drive where I can reach 50 mph for a couple of miles it no ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2002 Toyota RAV4 - Engine - 7/21/2014
    New voltage regulator has different wiring color scheme. What connects to what?
    A friend was helping me by clipping off a broken voltage regulator plug, and he threw it away before the new part arrived. The wiring from the vehicle is white, yellow, and red-black stripe. The voltage regulator I received has black on top, green in the middle, and ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2002 Toyota RAV4 - Engine - 7/21/2014
    New voltage regulator plug with different color wiring. Which connects to which?
    A friend, while helping me replace the voltage regulator plug, clipped off the old broken plugin and threw it away. When I got in my new plug it had different color wiring. The wires coming from the vehicle is white, yellow, and a red-black stripe. The wires on the ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2011 Toyota Tundra - Engine - 7/18/2014
    All the warning lights came on, volt meter started to fluctuate, lights flickered (turn signals, head lights etc).run ok
    38,000 - lite rain, temp approx. 64F. Was driving with head lights on in rain, all warning lights came on - lights began to flicker and the radio stopped working volt meter started jumping up and down. Accelerated a bit and all lights went out. It did this twice.
     
    0 answer
  • harold
    harold - 2009 Toyota Camry - Engine - 7/18/2014
    I change water pump and now it won't start
    I replace water pump and the car won't turn over like it would have a dead battery
     
    • jdl
      7/17/2014 jdl
      Your saying the starter motor won't crank? Did you have the battery unhooked? Sometimes if the battery is unhooked, some vehicles will go into theft lock? Not sure about yours? I'd also make sure the battery has a full charge. Then check the voltage and ground circuits for the starter motor. Any testing at the starte3r, make sure tranny is in park or neutral and the parking brake is set.

      The engine isn't locked-up?
      jdl
      7/17/2014 harold
      How do you get it out of theft lock? And the battery was not unhooked just the alteternator
      jdl
      7/18/2014 jdl
      Do you have smart key system or not. If you have smart key, there is probably a push/start button on the dash. If no push start button, I don't think you have smart key system. The starter wiring diagram is a little different depending on smart key or not.

      Yes, check the alternator fuse. Make sure battery has a full charge.
    • jdl
      7/18/2014 jdl
      If the problem is your security system, I don't know how to fix, at the moment? If I find more info I'll let you know.

      What about testing the starter motor circuits like I suggested? Any applicable trouble codes?
      jdl
      7/18/2014 harold
      No codes come up on the machine
    • jdl
      7/18/2014 jdl
      The problem may not be your security system, in that case, I'd check the circuits for the starter motor. Did you check for manufacturer specific codes as well as p0 codes?
      jdl
      7/18/2014 harold
      Yes nothing shows up. Do you think it could be alternator fuse under the hood?
      jdl
      7/18/2014 jdl
      Yes, check the alternator fuse. Notice the smart key post.
      jdl
      7/19/2014 harold
      I check the regular fuse 7.5 . Is there like a relay fuse? and where is it located I been fighting this a week now. Thanks
      jdl
      7/19/2014 jdl
      Do you have smart key or not, there is a difference in the starter wiring?
      jdl
      7/19/2014 jdl
      [url= http://postimg.org/image/o2g3wlmwt/][img] http://s22.postimg.org/o2g3wlmwt/starter_1.jpg[/img][/url]

      The wiring diagram is w/o smart key, not hybrid. Terminal 5 in the relay diagram goes hot with key in the crank position. As long as terminal 5 is hot, if you use a jumper wire between terminal 5 and 3, the starter motor should crank? MAKE SURE, the tranny is in park or neutral and the parking brake is set before testing. Is this an auto or manual tranny?
  • AutoMD Member
    AutoMD Member - 1996 Toyota Corolla - Engine - 7/17/2014
    After and overheat, Why is there no oil on the dipstick?
    running good, on way to work it started smoking, I pulled over and turned it off, now won't start. Radiator was hit by something.
     
    • jdl
      7/17/2014 jdl
      How often do check your engine oil level? If you let it run out of oil, you may have ruined the engine? If the starter motor can crank the engine, at least the engine isn't seized. If the cranking rpms are a lot faster than normal, there may not be any compression.

      You mentioned your radiator, is all your coolant gone?
  • AutoMD Member
    AutoMD Member - 1996 Toyota RAV4 - Engine - 7/16/2014
    What is causing my RAV's bucking, fuel odor, and 4th cylinder misfire code.
    So my RAV has been missing on occasion here and there for a few weeks. Finally it began missing like crazy. Jerking on acceleration in low rpms... and then a check engine threw out a misfire code on cyl 4. It also smoked like a train, and I could smell fuel when I ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2012 Toyota Matrix - Engine - 7/16/2014
    Want to repair my car
    Please i want to repair my car Toyota Matrix (2012)...I was driving the 2012 Matrix and the car engine stopped running all of a sudden without warning. I tried to restart it but could not start. kindly get back to me to proceed with the repair.
     
    • Jimm
      7/14/2014 Jimm
      Have you checked anything / any possibilities? Fuel delivery? Fuel level in the tank? Please reply with some details for further assistance.
      Jimm
      7/14/2014 AutoMD Member
      Yes, Have try to check on everything and it is okay...so how the car will get to your work shop and repair for me ?
    • AutoMD Member
      7/16/2014 AutoMD Member
      It can happen with anyone and anywhere, so everyone should be prepared for situations like this. If your car is stuck in middle of nowhere and you can’t find any mechanic so what would you do? You’ll have to know some essential car maintenance tips for emergencies like this. Here are few tips http://www.iautobodyparts.com/guide_and_tips.html which you can use anytime your car is giving you some trouble.
  • AutoMD Member
    AutoMD Member - 2007 Toyota Sienna - Engine - 7/15/2014
    Serpintine belt routing order
    tensioner 1 or 2 and diagram
  • AutoMD Member
    AutoMD Member - 1993 Toyota Pickup - Engine - 7/15/2014
    Car won't start when the weather is warm or hot
    Car starts when cold..but when warm or hot have to keep ignition on otherwise it starts and dies if you try and start it..could be mass air flow ..ignition ,crank sensor??? Not Fuel pump had that replaced
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2010 Toyota Sienna - Engine - 7/11/2014
    Starts with excess cranking
    70k miles. excess both warm and cold but more when cold.
     
    • jdl
      7/11/2014 jdl
      You might try cycling the ignition switch on and off a few times before you crank it, see if it helps? If it does, I'd have to check your fuel pressure.
  • AutoMD Member
    AutoMD Member - 1996 Toyota Tacoma - Engine - 7/10/2014
    I have a po170 code and when it gets hot it will start but not crank. Exhaust smells rich also
    When I drive the truck for about 40 miles and the engine gets hot, I can cut it off and go in the store or anywhere and the truck will crank but will not start. After a while it will start. When trying to crank the exhaust smells rich. Not sure what it is..
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2005 Toyota Avalon - Engine - 7/6/2014
    Why my temperature gauge flux between hot & cold. A/c or heat doesn't work
    It has a miss when the temp guage runs to hot but vehicle not steaming over.
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1990 Toyota Corolla - Engine - 7/5/2014
    Kcar knocking in engine
    just had major tune up
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2001 Toyota Avalon - Engine - 7/5/2014
    Where is the knock senser
    check engine light is on. code shows bad knock senser
     
    • CVO
      7/4/2014 CVO
      The "knock sensors" for the Avalon 3.0 are facing the firewall on the engine block just below the intake manifold.

      Note: using the fuel with higher octane ( 91 octane ) might help to avoid the knocking.
    • AutoMD Member
      7/5/2014 AutoMD Member
      The Knock Sensors are located under the main intake manifold in the valley of the two cylinder heads. As DTC P0325 & P0330 may indicate a defective Knock Sensor (s), the real issue may be in the wiring harness that connects the sensors to the main harness. Many times the harness is recommended to be installed with the replacement of the two sensors.
      AutoMD Member
      7/5/2014 AutoMD Member
      Thank you very much
    • Jimm
      7/5/2014 Jimm
      Check the knock sensor wiring / connections - as previously suggested. The wiring harness for the knock sensors are cheap insurance - replace the harness at the same time if the knock sensors are replaced.

      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 anti-knock (detonation) sensors from around $79.80 (each) and the knock sensor wiring harness from around $19.50 (each) for your vehicle.
      Jimm
      7/5/2014 AutoMD Member
      You Have answered my question. Now it's a matter of ambition. The lights been on for three years. We don't have emissions check here.
 
AutoMD Verified Customer
AutoMD obtained proof this customer interacted with the shop.