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Toyota engine repair questions and answers

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  • 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 Member
    AutoMD Member - 1993 Toyota Pickup - Engine - 7/1/2014
    Feels like fuel cuts out at less than half a tank.
    147,000 miles. has new fuel pump, screen and filter. fuel injectors have been cleaned. only happens at half tank or less. no check engine or warning lights.
     
  • AutoMD Member
    AutoMD Member - 2007 Toyota Camry - Engine - 6/30/2014
    Motor oil censers covered in oil gung
    dash lights come on after cruise control is under stress. now and then. it only started recently ,
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1989 Toyota Camry - Engine - 6/29/2014
    I have an 89 Toyota Camry and today the check engine light came on. I stopped and checked all of the fluids and the anti
    We have 260,000 miles on the car. This just started today and happens when we are driving. I was 5 miles from home and the check engine light came on. I pulled over and the antifreeze overflow was empty. put more antifreeze in and drove home. When I got there it ...
     
    • CVO
      6/29/2014 CVO
      Perform a cooling system / radiator pressure test when the engine is cold - as a first step to locate the leak.
      Obtain a loaner tool / free radiator pressure tester from the local auto parts stores such as Autozone, O'Reilly, NAPA, Advance Auto, or PepBoys. Follow their instructions and pump it to an adequate air pressure 12 -15 psi or the pressure rating listed on the radiator or reservoir cap. Observe the leaks and perform the repair.
      Note: do not over pressurize beyond the pressure allowed by the radiator cap, then test the radiator cap as well.
  • AutoMD Member
    AutoMD Member - 1999 Toyota Solara - Engine - 6/28/2014
    Why is there difference in rpm between scanner tool and dashboard?
    When I plug in my scanner tool to my solara it shows me that the idle rpm is at 780 where it should be, but on my dashboard it is showing my that the rpm is at 1150. Does anybody know why or how that is happening?
     
    • carhauler
      6/28/2014 carhauler
      When the scanner is plugged in it is reading the ecm . That is the true reading . It is not uncommon for the gauge on a car that age to be off 200-300 rpm's .
  • AutoMD Member
    AutoMD Member - 1999 Toyota Solara - Engine - 6/28/2014
    Why is there difference in rpm between scanner tool and dashboard?
    When I plug in my scanner tool to my solara it shows me that the idle rpm is at 780 where it should be, but on my dashboard it is showing my that the rpm is at 1150. Does anybody know why or how that is happening?
     
    • CVO
      6/28/2014 CVO
      Local auto parts stores such as Autozone ( not in California) or Advance Auto parts or Pep Boys will scan this vehicle for free of charge. Asking them to run the RPM test and see if that matches with the RPM of your tachometer. Compare the test results with your own scanner.
  • AutoMD Member
    AutoMD Member - 1993 Toyota Corolla - Engine - 6/28/2014
    Ho to change front crankcase oil seal
    while the car is running it has a bad oil leak fro either the front crankcase oil seal or the upper pan gasket. cant see exactly which one is leaking because the harmonic balancer is in the way
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2006 Toyota Corolla - Engine - 6/25/2014
    How expensive is a valve job for this car.
    2 different local mechanics said this was the problem but neither one wants to work on it. The said it required a lot of time and special tools. One said that it was not worth it because of the age and mileage (160,000) and said I should use some kind of oil ...
     
    0 answer
  • nacho
    nacho - 1996 Toyota Avalon - Engine - 6/24/2014
    I got codes p300,p302,p304,p306, I know that's a misfire. What else couldit be?
    I recently try to do the smog check on this car and when I got to the smog station the CEL came on they scanned and got the 4 same codes .i notice that the light comes only on normal idle , when the car is running or on higher rev the light never come on, is this ...
     
    • CVO
      6/24/2014 CVO
      The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring.
      The p0302, p0304, p0306 are misfiring from the even cylinders which they're the front cylinders.

      CVO
      6/25/2014 nacho
      Thanks for reply my post , I will check for any leaks in the intake and keep update, thanks again!!
  • AutoMD Member
    AutoMD Member - 2003 Toyota Camry - Engine - 6/23/2014
    Why does engine vibrate?
    The engine was removed and the crank case removed and replaced but the engine now vibrates.
     
    0 answer