Plugs and wires

Tiny
CIVEY
  • MEMBER
  • 1999 PLYMOUTH VOYAGER
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 109,000 MILES
How do you change the rear plugs and wires? I'm removing the intake but the wiring harness is attached. I'm stuck! This seems a bit extreme just to do a tune-up. Is there an easier way? Thanks, Chip
Sunday, December 21st, 2008 AT 3:19 PM

1 Reply

Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
SPARK PLUGS (3.3L & 3.8L)
WARNING:Spark plug wires should not be removed while engine is hot. This could cause severe injury/burns and can cause damage to spark plug wires.

CAUTION:Spark plug heat shield needs to be installed correctly on boot before being installed on spark plug. If it is not installed correctly, engine misfire will occur. Do not use pliers to remove boot/heat shield assembly from spark plugs. This will damage shield assembly.

Removal & Installation (Spark Plug No. 1)
Remove accessory drive belt. Remove 4 bolts from upper half of generator bracket. Push generator rearward. Grasp spark plug boot/heat shield assembly as close to spark plug as possible.
Twist boot/heat shield assembly slightly to break the seal with spark plug and pull straight off spark plug. DO NOT use pliers, pull on ignition cable, or pull spark plug boot at an angle. Remove spark plug.
Install spark plug and tighten to specification. See TORQUE SPECIFICATIONS. Wipe spark plug insulator clean with a dry cloth.
When installing spark plug cables, ensure spark plug insulator and terminals are fully seated. A click sound should be heard or felt when terminals are properly attached. To complete installation, reverse removal procedure.
Removal & Installation (Spark Plugs No. 3 & 5)
Remove resonator. Remove intake strut-to-cylinder head bolt. Loosen bolt for intake strut at intake. Swing strut away. Grasp spark plug boot/heat shield assembly as close to spark plug as possible.
Twist boot/heat shield assembly slightly to break the seal with spark plug and pull straight off spark plug. DO NOT use pliers, pull on ignition cable, or pull spark plug boot at an angle. Remove spark plug.
Install spark plug and tighten to specification. See TORQUE SPECIFICATIONS. Wipe spark plug insulator clean with a dry cloth.
When installing spark plug cables, ensure spark plug insulator and terminals are fully seated. A click sound should be heard or felt when terminals are properly attached.
Install spark plug wire into retaining bracket. Also, ensure spark plug wires are attached to rear retaining clip mounted on rear of intake manifold. To complete installation, reverse removal procedure.
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Sunday, December 21st, 2008 AT 8:29 PM

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