Question about 1998 Oldsmobile Silhouette
First you'll have to rotate the engine forward to get at the rear plugs, to do this remove the the air cleaner, intake air plumbing, and front engine stabilizers. Disconnect the exhaust flange from the engine to the exhaust pipe, from underneath the car remember to use a good set of jack stands on stable ground, when you're working under a ton or two of sharp metal you can never be too safe. Remove the upper radiator hose then put a come-a-long or ratchet tie down ******** the engine lift point and to one of the bolts left after removing the stabalizers, then winch the engine forward exposing more of the rear of the engine. As I remember you'll have to remove the EGR Valve, possibly the upper intake manifold, the ignition coil pack and the canister vent valve which mounts on the back of the coils, getting at these rear bolts is a bear, I wouldn't replace them just put the vent valve on the studs the ignition coil on top of that and let the front bolts hold the ignition coils down, it's worked fine for me for over 100 K Mi. Heed the next step, it's important so you don't have to go through the rest of your life known as Lefty. Before you put your arms behind the engine, double up the tie down strap, if one falls off it'll break and pin your arms behind the engine, safety again. As you can see this is a relatively involved process, more from the number of steps than any complexity. There are many hidden bolts and number or mark all cables you remove although none will fit any of the plugs except where their suppose to go. Take pictures, and do everything that needs to be done in the back, don't be like me and not change the O2 Sensor trying to save $50 just to have to do it all over again in 6 months. Good luck.
Posted on Oct 03, 2009
Its not easy requires patceints,but to save time go from under bottom up,rather than removing wiper asmbley and bucket.but if you have time then may be easy to remove wiper asm, and wiper bucket.good luck.
Posted on Oct 03, 2009
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Posted on Jan 02, 2017
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