Quest 1995-1996

Adjustment

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Specific to:

Mercury Villager 1993-2000

Nissan Quest 1993-2000

While periodic adjustment is not necessary, ignition timing may need to be adjusted when the distributor has been removed for repairs, such as cylinder head removal, or when all other causes of an engine performance problem have been eliminated and the symptoms suggest an ignition timing problem.


WARNING
Timing should be adjusted using an inductive pickup timing light. Other types of timing lights alter circuit resistance and may damage electronic engine control components.

When checking ignition timing, observe the following conditions:



All lights and accessories must be turned off.
 
The engine should be warmed up to normal operating temperature.
 
The front wheels should be pointed straight ahead.
 
Make sure that the radiator cooling fan has stopped before checking timing.
 
The transmission must be in park (P) or neutral (N).

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Fig. Cylinder numbering-3.0L and 3.3L engines



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Fig. Throttle position sensor harness location



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Fig. Timing mark alignment-1999-00 3.3L engine



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Fig. Timing mark alignment-1993-98 3.0L engine

 

  1. Apply the parking brake and be sure that the vehicle is in park.
  2.  
  3. Start and run the engine at about 2000 rpm for about two minutes.
  4.  
  5. Turn the engine OFF and disconnect the throttle position sensor harness connector, located at the throttle body between the intake manifold and air cleaner-to-intake mani