Spark plugs replacement

2004 SATURN VUE

268,000 MILES • 3.5L • 6 CYL • 4WD • AUTOMATIC

BRENNINGER

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How to remove/install spark plugs on this engine? There are no videos anywhere. Can you help?

Mar 17, 2018 at 9:17 PM

HARRY P

✓ASE Certified Mechanic
2,292 POSTS

Well the instructions from Saturn are a bit simplistic. They say step (1) remove ignition coils. Step (2) remove spark plugs. Step (3) install new plugs. Step (4) install coils.

The instructions for removing the coils on Bank 1 (the front side) are in the images.

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Mar 18, 2018 at 4:16 AM

HARRY P

✓ASE Certified Mechanic
2,292 POSTS

Bank 2:

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Mar 18, 2018 at 4:20 AM

HARRY P

✓ASE Certified Mechanic
2,292 POSTS

Once the coils are off, taking the plugs out and replacing them is simple. Just use your spark plug socket to unscrew the old ones and screw in the new ones. Be sure and check the gap of the plugs before installing them though. They should be gapped to somewhere between 0.039 and 0.043 inches. You can get a gap gauge from AutoZone for a few bucks if you do not already have one. They usually have them sitting on the counter.

Mar 18, 2018 at 4:23 AM