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Isuzu engine repair questions and answers

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  • river29
    river29 - 1999 Isuzu Rodeo - Engine - 5/14/2015
    Why is my car misfiring and backfiring under a load and when not even pressing gas.
    we have already changed all spark plugs and all 6 coil packs, all 4 o2 sensors, timing belt, water pump, tensioner pulley, egr valve but we ordered it off of ebay so it could still be bad, we changed all orings on fuel injectors, changed fuel filter and fuel pump, ...
     
    0 answer
  • CLIFFA
    CLIFFA - 2001 Isuzu Rodeo - Engine - 4/23/2015
    WILL TURN OVER BUT NOT ENGAGE (START)..GAGE'S DON'T WORK..BUT DISPLAY DOES LIGHT UP..HAS GAS???
    LAST DROVE, NO PROBLEMS. ALSO CHECKED FUSES
     
    0 answer
  • Tagman96
    Tagman96 - 1995 Isuzu Trooper - Engine - 4/8/2015
    I don't know what engine is in it?
    The previous owner swapped the engine from it and I don't know how to tell what year my engine is because it's nor original
     
    0 answer
  • fredmussler
    fredmussler - 2001 Isuzu Rodeo Sport - Engine - 3/23/2015
    Disable-limp in from throttle control
    100,000m miles- does not overheat- no engine lite- occurs at 20-30mph want to disable limp from throttle control. Just completed EGR valve and blowout
     
    0 answer
  • DrWood69
    DrWood69 - 1994 Isuzu Trooper - Engine - 3/20/2015
    Will anything explode or implode if the 4wire oxygen sensor on the exhaust pipe is wired incorrectly
    The wire connection got too warm and friendly with the exhaust . Due to excessive melting I am unable to tell which wire goes where. Also the wires on each side of the connection are different colors so I can't even match them up.
     
    • Jimm
      3/20/2015 Jimm
      If the oxygen sensor is wired incorrectly, it will just fail to work properly and give false readings - which may cause the engine to idle or perform rough. There will still be one or more fault codes displayed or stored.
  • Fernando
    Fernando - 1994 Isuzu Trooper - Engine - 3/15/2015
    My vehicle runs rough and after driving for few miles and coming to a stop it feels like is going to stall
    after the vehicle has been driven for a few miles and shut off you come back to vehicle after a few minutes and engine cranks over for long periods until it does start and rely runs rough or hard to keep idle
     
    • Jimm
      3/15/2015 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
  • Fernando
    Fernando - 1994 Isuzu Trooper - Engine - 3/15/2015
    Vehicle runs rough all the time no check engine light warning
    Vehicle runs rough and almost wants to stall at stops after vehicle is restarted it cranks for long periods once it starts it sputters and continues to run rough
     
    • Jimm
      3/15/2015 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
  • keisha
    keisha - 2002 Isuzu Axiom - Engine - 3/12/2015
    My car is turning but not starting, I hear the fuel pump come on doesnt seem to be getting fuel. smooth on the turnover
    No shaking or putting wen I turnit over
     
    • Danny
      3/12/2015 Danny
      If it turns over fast(smoothly), most likely timing belt.(Eliminate fuel issue by spraying carb cleaner into air filter.) If it starts, there's your answer.
  • triciac
    triciac - 2003 Isuzu Axiom - Engine - 3/12/2015
    How can I tell if my antifreeze is mixing with my oil?
    How can I tell if my antifreeze is mixing with my oil and going into my fuel injectors?
     
  • shannon
    shannon - 2003 Isuzu Rodeo - Engine - 2/1/2015
    change water pump and went to loosen crankshaft pulley bolt by holding intake camshaft sprocket but the belt jumped
    now crankshaft and exhaust camshaft sprocket are in time but intake is not cause belt jumped teeth. Do I need to loosen that intake cam and rotate engine around to tdc and then rotate intake cam sprocket back to tdc also just not sure how to do this.
     
    0 answer
  • BeeWilliams
    BeeWilliams - 1991 Isuzu Rodeo - Engine - 1/31/2015
    Having trouble starting, will not stay running more than two seconds.
    It is getting plenty of gas but cuts off before you can give it gas. Ignition is working and reset timing already so cannot figure out the problem.
     
    0 answer
  • BeeWilliams
    BeeWilliams - 1991 Isuzu Rodeo - Engine - 1/31/2015
    Having trouble starting, will not stay running.
    It wants to start but shuts off in two seconds. Cannot keep it running enough to figure out whats wrong with it ? I know its getting plenty of fuel.
     
    0 answer
  • Clifford
    Clifford - 2002 Isuzu Rodeo - Engine - 1/25/2015
    Temp. gauge was going back and forth. Then it went to hot side. Is it a cracked block?
    Mechanic said it was a cracked block bec. coolant is running out the back of the engine. Does this sound right?
     
    0 answer
  • g8kpr
    g8kpr - 2008 Isuzu i-290 - Engine - 1/14/2015
    Why do I get a reading of "not ready" for the O2 sensor and evap sensor when emissions check is done?
    Took the vehicle in for a safety inspection and when it was put on the emissions test machine it failed because of a "not ready" on the O2 and evap sensors. Mechanic said to drive the car 40 to 80 miles and return to retest. Did That and got the same results. "Not ...
     
    0 answer
  • kent
    kent - 1989 Isuzu Pickup - Engine - 12/21/2014
    Produces white smoke from under driver side
    vehicle stalls when not moving
     
    • Dan
      12/21/2014 Dan
      The smoke sounds like an exhaust leak and maybe burning oil too. That won't cause your vehicle too stall. With a vehicle that old I would just keep fluids in it and drive it til it dies for good.
      Dan
      12/21/2014 Teddy B
      The White Smoke is most likely from a head gasket, if the smoke
      is going out the exhaust pipe

      If not then a big coolant leak that is getting onto the hot exhaust