Question about 1993 Jeep Grand Cherokee

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What parts di i need for a tune up

What parts do i need for a tune up

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  • Marvin
    Marvin May 11, 2010

    that depends on the miles on the truck

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Replace the fuel filter. If you have a fuel-injection system, regular cleaning isn't necessary unless the injectors are clogged.

  • Step 2 Change the spark plugs (unless they're platinum, in which case you have 30,000 more miles to go). Also examine the spark plug wires and replace as needed. A new set of high-quality wires is worth the cost. They may be permanently attached to the distributor cap, so it will have to be changed as well.
  • Step 3 Replace the distributor cap and rotor if your car has them (some newer models with distributorless ignition don't).
  • Step 4 Change the points and condenser if you have an older car (roughly 1978 or older) that doesn't feature electronic ignition. You'll actually want your points changed, or at least adjusted, every six months or so (if they're changed, check the ignition timing as well).
  • Step 5 Check the ignition timing and adjust as needed (rare for a car with electronic ignition--post-1980--and some cars don't allow this at all).
  • Step 6 Adjust the valves as needed (unless your car has hydraulic valves). Be sure to replace the valve-cover gasket as well, especially if you see oil on top of your engine.
  • Step 7 Check the belts. Replace if worn.
  • Step 8 Check the fluids under the hood and replenish as necessary. Change the oil and oil filter if it's been 3,000 miles since the last oil change.
  • Step 9 Replace the air filter, which should be changed between major services--every 15,000 miles--as well.
  • Step 10 Adjust the clutch, if you have a manual transmission (although some cars now sport self-adjusting clutches).
  • Step 11 Service the battery, adding distilled water (if required), cleaning terminals and cable ends.
  • Step 12 Replace the PCV (positive crankcase ventilation) valve. It can make your car run rough or stall if it gets clogged, and it's cheap and easy to replace..... hope this helped mate. Rate out of 4 above...
  • Posted on Mar 04, 2010

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    1 Answer

    What parts do i need for a tune up


    if it is an EFI engine then the parts that you will need for a tune up will be indicated in the fault codes
    The ECM of the vehicle continually tunes the engine while running ( around 100 times a minute) and as long as all the sensors are within parameters ,the engine will remain in tune
    any sensors that are failing will leave a fault code and just because the engine light is not on doesn't mean that there are no fault codes recorded
    basically "good mechanics do not fix what isn't broken"

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    What do i need for a tune up


    plugs ,wires,fuel filter and a can of throttle body cleaner for the airflow sensor

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    Engine problems


    Hi there:
    When was the last time the engine was full tuned up? This sounds like a classic ignition misfire! They usually go bad under a load like under acceleration, but can be noticeable at any time.


    It is very important to have your engine equipped with good tune up parts or you may be causing damage to other components of you car like the catalytic converter which can be expensive.


    Possible causes:

    Ignition misfire causes by any bad tune up part and or ignition coil or coils.
    Bad spark plugs, spark plug wires and cap and rotor (if equipped)
    Wrong tune up parts spark plug, wires etc...


    The quickest way to check the ignition components, is by looking closely for leaking secondary voltage. Visual look at all the tune up parts to see if you can see any sparks coming from any of the wires or coil (or coils) when the vehicle is running. If not, you can put your hand on the coil/coils and wires when the engine is running and see if you feel any small voltage leaking form the tune up parts.

    It will leak secondary ignition voltage from the tune up parts caused by high resistance from carbon tracking if they are bad. This is very common if the tune up parts are not changed regularly!


    If any is found, the tune up parts are simply bad and will need to be replaced! If none is found than you can spray a mist of water on the tune up parts when the engine is running and see if that causes the engine to stumble or run rough at all. Again, if it does, the tune up parts are bad and will need to be replaced.



    Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

    Thank you for using FixYa, have a nice day.

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    Engine dies in idle mode


    Hi there:
    When was the last time the engine was full tuned up? This sounds like a classic ignition misfire! They usually go bad under a load like under acceleration, but can be noticeable at any time.


    It is very important to have your engine equipped with good tune up parts or you may be causing damage to other components of you car like the catalytic converter which can be expensive.


    Possible causes:
    Ignition misfire causes by any bad tune up part and or ignition coil or coils.
    Bad spark plugs, spark plug wires and cap and rotor (if equipped)
    Wrong tune up parts spark plug, wires etc...


    The quickest way to check the ignition components, is by looking closely for leaking secondary voltage. Visual look at all the tune up parts to see if you can see any sparks coming from any of the wires or coil (or coils) when the vehicle is running. If not, you can put your hand on the coil/coils and wires when the engine is running and see if you feel any small voltage leaking form the tune up parts.
    It will leak secondary ignition voltage from the tune up parts caused by high resistance from carbon tracking if they are bad. This is very common if the tune up parts are not changed regularly!


    If any is found, the tune up parts are simply bad and will need to be replaced! If none is found than you can spray a mist of water on the tune up parts when the engine is running and see if that causes the engine to stumble or run rough at all. Again, if it does, the tune up parts are bad and will need to be replaced.


    Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.


    Thank you for using FixYa, have a nice day.

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    All you need are the spark plugs and an air filter is needed

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