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You have to remove the intake plenum. This is a pain, but something I've got down to an art after all these repairs, it seems...

First, remove the bolts on the left and front of your coil packs, on the left side of the engine (facing it from the front bumper). Wiggle it free, and there will be one/two bolts holding on the intake plenum. Remove them, then over to the right side.

There are three screws holding on the throttle body adapter. Two are easy to see and get to, relatively. The third is under it, and usually requires a u adapter and deep socket to get it out. Now remove the seven bolts (and disconnect the fuel rail from the front), and it should just pop free. Take care not to lose your PCV valve in the back...and make note of where it goes back in. Now you can get to your back three plugs.

You might want to swing by O'Reilly's and get the 'throttle body adapter gasket' and the intake plenum gasket beforehand. The Throttle Body Adapter Gasket tends to shred if you don't put the plenum back in just right. It -is- outright easier to remove the throttle body...but that takes quite a bit longer.

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11y ago
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Q: How do you get to the rear 3 spark plugs on a 1996 Monte Carlo Z34?
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