Dear JK
How do I change the rear 3 spark plugs and wires on a my 2001 Silhouette 3.4l
JK:
Well there are 2 ways to get to those. Either way is not easy. The plug wires are
very difficult to get off. Need to turn the wire on the plug to break the wire
loose.You can get them from the top while laying on the engine using a
universal/swivel plug socket on an extension. some techs. unbolt the the two upper
engine mount stuts and puul the engine forward, then hold it in place with a special
holding tool. I always do it from under the van. Still, very difficult. The front one you
can get to through the wheel well, the other two from putting your arms up along
the exhaust pipe. Dropping the exhaust pipe from the manifold helps. You can alo
gain some room by removing the 2 rear frame bolts while SUPPORTING the frame
with a screw jack. BE VERY CAREFULL! If you lower the frame too much (more
than 4-6 in.) the steering shaft can become disconnected from steering column
and cause all kinds of grief. Either way, is difficult even with universal/swivel
socket. Your arms will get stuck here and there and maybe cut up too.


How to Change Spark Plug Wires