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Infiniti engine repair questions and answers

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451 Questions
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  • bobaruba
    bobaruba - 1998 Infiniti I30 - Engine - 11/12/2014
    Car runs on battery juice only
    changed ignition starter switch,,alternator tested fine,,took battery to autozone to test and recharge,,,car runs few miles,,light start to get dimer and dimer and car stops running ????
     
    • CVO
      11/12/2014 CVO
      There is a key off parasitic electrical drain on the battery because a relay is sticking, a module is not shutting down, or there is a shorted diode in the alternator.

      See this site and read their instructions to a letter.

      http://www.popularmechanics.com/.../...ar-battery-drains

      Note: a fuse box ( shorted ) could drain the battery as well.
  • bobaruba
    bobaruba - 1998 Infiniti I30 - Engine - 11/11/2014
    Car drives till it uses all battery electricity,,when i take battery to autozone they recharge it,,again it gets empty
    just in few miles of driving,,head lights and cabin lights start getting weak and car stops running,,i double tested alternator in autozone,,its fine ?????
     
    0 answer
  • wojcinski
    wojcinski - 1999 Infiniti Q45 - Engine - 11/9/2014
    Brake and battery light went on. TSB 09-026?
    145k miles. Brake fluid recently changed and looks fine though the light comes on occasionally. I believe this is due to the pedal. I had the brake cable adjusted very recently. Trying to determine if it's just a switch problem (under the dash) or the alternator ...
     
  • AutoMD Member
    AutoMD Member - 2006 Infiniti G35 - Engine - 11/1/2014
    Check Engine Light came on and car stated jerking.
    Miles: 117,300; I filled with Cheveron premium on way home. The check engine light came on and the car started jerking. Jerking sensation felt upon accelaration from a stop. Eased on the gas pedal and car then felt ok, but then pushed the gas some more and the ...
     
    • Jimm
      11/1/2014 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
  • aatxe
    aatxe - 2007 Infiniti G35 - Engine - 11/1/2014
    Idling at low RPMs and hardly responding to gas pedal?
    Hello. So I drove home from work today without incident. I parked and ran inside to get my climbing shoes and a bite to eat, and came back out within 20 minutes. When I turn on the car, it starts "weak" and idles at about 500-600 RPMs. When I put in neutral and ...
     
    • Jimm
      11/1/2014 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
  • aatxe
    aatxe - 2007 Infiniti G35 - Engine - 10/31/2014
    Idling at low RPMs and hardly responding to gas pedal?
    Hello. So I drove home from work today without incident. I parked and ran inside to get my climbing shoes and a bite to eat, and came back out within 20 minutes. When I turn on the car, it starts "weak" and idles at about 500-600 RPMs. When I put in neutral and ...
     
    0 answer
  • olibroccoli
    olibroccoli - 2008 Infiniti G37 - Engine - 10/14/2014
    My engine start dipping below idle on neutral (stopped at a light). It dips 500-600 rpm, vibrate a little. TIA
    Cleaning throttle bodies doesn't seem to resolve the issue
     
    0 answer
  • mark
    mark - 2004 Infiniti G35 - Engine - 10/12/2014
    Why does my vdc slip light not only come on while driving but also engages as if its a slippery condition when its not
    199k miles on the car during normal operation when you start the car the vdc goes through a self test when you reach about 10mph then drives normal. Suppose to only do this once. But my car does this after the initial test randomly while driving the vdc slip light ...
     
    • Jimm
      10/12/2014 Jimm
      Most common is a faulty ABS wheel speed sensor . Have you had the vehicle scanned to see what ABS codes are stored?
      You can try to disconnect the battery for 15 minutes and see if it resets . If the lights come back on then you need to have it scanned which is no extra charge when doing the repair . Also any local auto parts store; Advanced Auto, Auto Zone, NAPA - can scan the vehicle for free .These are the next steps.

      You may also check the brake fluid level and simply refill if the level is low. Sometimes low brake pad level (front brakes) can cause the same light.
  • Otto Hernandez
    Otto Hernandez - 2008 Infiniti G37 - Engine - 9/23/2014
    My car has a noise above the accelerator pedal coming from a box that seems to be the driving module. How can I confirm?
    After pass 3000 RPM, a noise starts to come from the box above the accelerator pedal, by research it seems to be a driving module. Can I just replace it? What other problems can this cause? The car doesn't have any warning lights, and the engine light is not one.
     
    0 answer
  • Otto Hernandez
    Otto Hernandez - 2008 Infiniti G37 - Engine - 9/23/2014
    A module driving component is making the noise. How would I confirm that is the problem?
    The noise is when RPM is over 3000, no difference weather the car is cold or hot. It seems to be coming from under the dash, from a white box above the accelerator. The check engine light is not on, and no other warning lights are on. I was thinking of just ...
     
    0 answer
  • Chris
    Chris - 2000 Infiniti I30 - Engine - 9/22/2014
    Why does my driver side radiator fan stay on even when the key is off.
    This happens even when the car has not been started. There is no check engine light.
     
    • RickTheShadeTreeMechanic
      You likely have a short in the wiring. These can be hard to find, but follow the wiring back from the fan and see if the coating is worn through, letting the wires make contact where they shouldn't be. This can be an easy fix with electrical tape if you find the problem.
  • infinity i-30
    infinity i-30 - 1997 Infiniti I30 - Engine - 9/22/2014
    Infinity i-30 cruises great..replaced ignition coils..and plugs...idles great.....after heating up...wont come off the..
    Wont come off the line....doesnt die...but doesnt go.....easing out on gas pedal, slowly picks up after a while and goes.......any idea...? Fuel pressure? Tps?
     
    • Jimm
      9/22/2014 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
  • Pete                            Palazzolo
    Pete Palazzolo - 2000 Infiniti I30 - Engine - 8/24/2014
    Code indicates 3 way catalist when checking hat does it mean?
    240,000 miles. check engine light came on after 100 mile trip, then after awhile it went off again. A few days later it comes back on. Car runs good except for a tapping sound near the housing for the timing chain.
     
    0 answer
  • Pete                            Palazzolo
    Pete Palazzolo - 2000 Infiniti I30 - Engine - 8/23/2014
    Check engine light is on
    tester shows check 3 way catalist. what does it mean?
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1999 Infiniti Q45 - Engine - 7/30/2014
    Car quit running almost certain its electrical
    I cranked the car and after about 30 seconds, it quit running. It will turn over but the dash lights do not come on, also the windows will not roll down but the door locks work. I have checked the fuses inside pretty good. I looked at the ones under the hood but ...
     
    0 answer