Spark plugs replacement

Tiny
BRENNINGER
  • MEMBER
  • 2004 SATURN VUE
  • 3.5L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 268,000 MILES
How to remove/install spark plugs on this engine? There are no videos anywhere. Can you help?
Saturday, March 17th, 2018 AT 9:17 PM

3 Replies

Tiny
HARRY P
  • 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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Sunday, March 18th, 2018 AT 4:16 AM
Tiny
HARRY P
  • MECHANIC
  • 2,292 POSTS
Bank 2:
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Sunday, March 18th, 2018 AT 4:20 AM
Tiny
HARRY P
  • 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.
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Sunday, March 18th, 2018 AT 4:23 AM

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