Engine tune up

The only tune-up procedures for diesel engines are to change the fuel filter, drain the water separator and check engine speed. If the injection pump or timing belt have been removed, pump timing must also be adjusted (see Fuel System ). See General Information And Maintenance for filter and water separator service.

https://www.autozone.com/repairguides/Volkswagen-Front-Wheel-Drive-1974-1989-Repair-Guide/DIESEL-ENGINE-TUNE-UP-PROCEDURES/DIESEL-ENGINE-TUNE-UP-PROCEDURES/_/P-0900c1528026651b

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"

Plugs, wires, rotor/cap, and pickups. Tune up kit from your favorite parts store. Is there a mechanical problem?

Check the help link mentioned below:----

How to Perform a Basic Engine Tune Up-Spark Plug and Wire Change
http://schematicsdiagram.blogspot.com/2011/08/how-to-perform-basic-engine-tune-up_01.html

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HOW TO PERFORM A BASIC ENGINE TUNE UP-OIL CHANGE
http://schematicsdiagram.blogspot.com/2011/08/how-to-perform-basic-engine-tune-up-oil.html

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These will help.
Thanks.

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.

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.

Usually @ 50-60,000. New air filter, Gas filter, Plugs and wires.......If car starts running rough or hard to start and miss fire is a good sign of a tune up needed..............Hope this helps.

Haynes repair manuals are available from just about any parts house for $20.

the owner of the car should be able perform engine tune-up . Prepare the tune up tools and materials . so that when tune-up is performed ,engine should be on peak performance and within specification.Use multi tester , Use timing light,use dwall meter ,use tachometer ,use feeler guage, adjust spark plug and contact point gaps. Adjust Idle speed and Idle mixture. Adjust tappet clearance,observe safety rules.If the owner of the car cant do the job done because of work then the owner of the car should go to a car mechanic and let them tune-up the engine.