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Super mechanic
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Category: Saturn
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Experience:  ASE Master tech, 30 years experience
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Saturn Aura XE: difficulty level of changing spark plugs on

Resolved Question:

difficulty level of changing spark plugs on 2007 saturn aura xe 3.5.
Submitted: 2 years ago.
Category: Saturn
Expert:  Super mechanic replied 2 years ago.

Hello and welcome to Just answer.com, Super mechanic here. Please DON’T hit accept until you are completely satisfied with the answer. If you need any more on it just let me know. About your vehicle.

They are really not hard to replace. The book time is one hour and you just want to twist the boots of and not pull them. The anti-seize is a very good idea with the aluminum heads, (I always use it)

Then, with a spark plug socket and an extension they are pretty easy to do. You also want to apply equal pressure when tightening them up, so that the socket doesn't put pressure on the new plug.

Specifications
Spark Plug Gap 1.02 mm (0.040 in)
Spark Plug Torque 15 N.m (11 lb.ft)


Service and Repair

Spark Plug Replacement

Removal Procedure

Notice: Observe the following service precautions:

  • Allow the engine to cool before removing the spark plugs. Attempting to remove spark plugs from a hot engine can cause the spark plugs to seize. This can damage the cylinder head threads.
  • Clean the spark plug recess area before removing the spark plug. Failure to do so can result in engine damage due to dirt or foreign material entering the cylinder head, or in contamination of the cylinder head threads. Contaminated threads may prevent proper seating of the new spark plug.
  • Use only the spark plugs specified for use in the vehicle. Do not install spark plugs that are either hotter or colder than those specified for the vehicle. Installing spark plugs of another type can severely damage the engine.

 


  1. Remove the intake manifold cover, if required.
  2. Remove the air cleaner outlet duct, if required.
  3. Remove the left side spark plug wires from the spark plugs, if required.

 


  1. Remove the right side spark plug wires from the spark plugs, if required.

 


  1. Remove the spark plugs from the engine.

Installation Procedure

Notice: It is important to check the gap of all new and reconditioned spark plugs before installation. Pre-set gaps may have changed during handling. Use a round wire feeler gauge to be sure of an accurate check, particularly on used plugs. Installing plugs with the wrong gap can cause poor engine performance and may even damage the engine.

Notice: Be sure plug threads smoothly into cylinder head and is fully seated. Use a thread chaser if necessary to clean threads in cylinder head. Cross-threading or failing to fully seat spark plug can cause overheating of plug, exhaust blow-by, or thread damage. Follow the recommended torque specifications carefully. Over or under-tightening can also cause severe damage to engine or spark plug.


  1. Gap the NEW spark plugs. Refer to Ignition System Specifications.

Notice: Refer to Fastener Notice.

  1. Install the NEW spark plugs.

Tighten the plugs to 20 N.m (15 lb ft).


  1. Install the right side spark plug wires to the spark plugs, if required.

 


  1. Install the left side spark plug wires to the spark plugs, if required.
  2. Install the air cleaner outlet duct, if required.
  3. Install the intake manifold cover, if required.



Customer: replied 2 years ago.

Hey thanks for the answer. Unsure as to torque spec, one place indicated 15 N the other 20 N. Please clarify.

Thanks

Expert:  Super mechanic replied 2 years ago.
The specs. chart says 15nm. That is what I go by, thanks


2007 Saturn Aura V6-3.5L



graphic
Super mechanic, ASE Certified Technician
Category: Saturn
Satisfied Customers: 12610
Experience: ASE Master tech, 30 years experience
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