Question about 1992 Oldsmobile Achieva
Actually, the problem sounds more like a blown head gasket (or head) dumping oil into the cylinders. That would explain why it loses power. If you are certain that you need the oil pump changed, you do have to hoist the whole engine out of the compartment. This is because the "front" bolts on the oil pan are directly under the timing chain cover, which can only be removed once the engine mount is taken off. My pump recently went out, and sans hoist I was relegated to using a mechanic to do the job - for a painful $1,000.
If the issue is the head gasket, however, it should be much easier. For that, you can put a jack under the crankcase, and take the engine mounts and timing chain cover out. From there, you should be able to easily disassemble the whole engine working from the top downward, without any trouble.
Posted on Jul 22, 2009
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Posted on Jan 02, 2017
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