How to change rear spark plugs

Tiny
ROCMASTER30
  • MEMBER
  • 2003 PONTIAC MONTANA
My car has 3.4 liter V6 engine. I was wondering if someone could explain how to change the rear three spark plugs? I think I have a fouled out plug and need to change them and all. The local shops what $300.00 or more to change the dang things. Any ideas?
Friday, April 20th, 2007 AT 8:21 PM

2 Replies

Tiny
KFKIRSCH
  • MEMBER
  • 1 POST
I just finished mine on a 2002. I only changed the wires but the plugs are the same process. You need a strap wrench. You need to remove the air intake, air cleaner and disconnect the throttle cables. You then need to remove the engine torque links between the engine and the radiator support. You only need to completely remove the drivers side and on bolt on the passenger side. Place the strap wrench on the engine lift ring and the other end under the rad support crossover member. You then ratchet the engine forward about six inches to get more access to the back. You then need to remove the coil pack (four screws). Access is still very difficult, especially if you have large forearms. I am laid off, so I did it and it took me about five to six hours total. If I were working, I would pay the $300.00 and have them change the high voltage wires while they were in there. Good luck!
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Monday, May 4th, 2009 AT 2:31 PM
Tiny
PATRICKGOUGH
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  • 1 POST
Just did mine. Out of habit I almost removed alternator and air intake to hug the engine, but that will not work on this one.

All you have to do is remove the far left coil pack (two screws.) Take out the front engine mount bolts and use a strap to pull and hold the engine forward a little. It was still working blind and one handed, but ended up being much easier than most vans I have done.
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Wednesday, February 13th, 2013 AT 5:27 AM

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