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Lexus engine repair questions and answers

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  • soya
    soya - 2004 Lexus ES330 - Engine - 4/19/2015
    When the engine had turned on then turning air conditioner, hear high pitch nosie
    Squeal noise when air conditioner has turned on and sometimes not hear at all.
     
    • jdl
      4/19/2015 jdl
      Could be your drive belt? Have you ever replaced it? Or have the ac compressor checked out.
  • soya
    soya - 2004 Lexus ES330 - Engine - 4/19/2015
    Hear squeal noise when turned air conditioner
    When turned engine then turned air conditioner, heard high pitch sound of squeal noise. Some times didn't have nosie.
     
    0 answer
  • abuomar-13
    abuomar-13 - 2001 Lexus LX470 - Engine - 4/17/2015
    My car is speed up slow to move full flow not normall
    Engine captio Airbage caption
     
    • Jimm
      4/17/2015 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.

      This aspect is important; there may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.

      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
  • abuomar-13
    abuomar-13 - 2001 Lexus LX470 - Engine - 4/17/2015
    My car is speed up slow to move full flow not normall
    Engine captio Airbage caption
     
    • Jimm
      4/17/2015 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.

      This aspect is important; there may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.

      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
  • Vidilapin
    Vidilapin - 2008 Lexus IS250 - Engine - 4/9/2015
    How does filter gás, from the piping vacum, works?
    My car is having problems with the hose vacuum. It. comes out. when i apply power
     
    0 answer
  • ceezeee
    ceezeee - 2001 Lexus GS300 - Engine - 3/24/2015
    My car hesitates at times wen I step on gas
    Check engine light on is on as well as VCS and VCS off
     
    • Jimm
      3/24/2015 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.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.

      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
  • toliva87
    toliva87 - 1999 Lexus ES300 - Engine - 3/23/2015
    Right after I started my car the RPM needle bounced quickly up and down, then engine shut off, any one know why?
    After that happened, I restarted the car again, the needle started going up and down like before, but before the engine turned off I put the car in drive and left because I had to get to work, One other thing I noticed earlier in the day before this happened, I ...
     
    0 answer
  • ES300 OWNER
    ES300 OWNER - 1993 Lexus ES300 - Engine - 3/14/2015
    Car won't start warm.
    74,000 miles. It will start cold. it will start when warm after 0 -30 minutes, but not at 45 min. turns over well, but makes a sucking sound. if i floor the gas it sometimes starts. if i wait 50 min. it starts. fuel pump and fuel filter one year old. air filter ...
     
    0 answer
  • taylanator
    taylanator - 1997 Lexus ES300 - Engine - 3/1/2015
    PROBLEM! CAR WON'T START! VIDEO INCLUDED!
    I've pulled the starter and had it checked, battery is fine, connections look good, starter relay also good. But when I turn the key it just does NOTHING. HELP! Here's the youtube video, you can hear and see exactly what is happening! ...
     
    0 answer
  • Gabe Himself
    Gabe Himself - 1993 Lexus LS400 - Engine - 2/28/2015
    Bogging and stalling help!!
    HELP! I have 1993 lexus LS400 with troubles! I need this car for work and to support my kid. Any technical help is greatly appreciated. to start what happened was I was on the highway driving to work and I noticed my car doing something funky. so I pull off the ...
     
    • Jimm
      2/28/2015 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.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.

      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
      Jimm
      2/28/2015 Gabe Himself
      Thank you. But since it's a 93 no place around even auto zone and such, has a 96 and older scan tool. And I can't get to a dealer to have them scan it. They cost money to scan it they told me. And I have very little cash to work with.
      Jimm
      2/28/2015 CVO
      Try this site, it's for Toyota OBD1 1983-1995 ( it's probably for Lexus as well )

      http://www.extreme-check-engine-light-codes.com...
  • Gabe Himself
    Gabe Himself - 1993 Lexus LS400 - Engine - 2/28/2015
    Bogging and stalling help
    HELP! I have 1993 lexus LS400 with troubles! I need this car for work and to support my kid. Any technical help is greatly appreciated. to start what happened was I was on the highway driving to work and I noticed my car doing something funky. so I pull off the ...
     
    • Jimm
      2/28/2015 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.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.

      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
  • chuckie
    chuckie - 1992 Lexus SC400 - Engine - 2/25/2015
    Radiator overflow. Won't. Fill up the radiator. After. Installing a new one. ..
    Radiators. Not. Sucking down. The antifreeze
     
    0 answer
  • swan-scotthaw98
    swan-scotthaw98 - 2000 Lexus RX300 - Engine - 2/17/2015
    Speedometer doesn't work but rpm still works
    I have a lexus 2000 rx 300 but the speedometer is not working but everything else is working fine and when i drive the needle doesnt move from 0 and there are not miles beeing added to the odometer
     
    0 answer
  • anita
    anita - 2004 Lexus IS300 - Engine - 2/3/2015
    The coolant fans aren't turning on
    building up pressure in the radator
     
    0 answer
  • linda weeks
    linda weeks - 1993 Lexus ES300 - Engine - 1/2/2015
    What is the cost to purchase a diagnosis scan tool for my Lexus? This is a "Do it myself repair"
    What is the purchase price for a diagnosis Scan tool for a self auto repair?
     
    • Jimm
      1/2/2015 Jimm
      Typically around $20.00for a handheld scantool.