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what is missing?

1062 Views 5 Replies 5 Participants Last post by  yuanti
My '87 GMC Safari was running pretty rough last week all of a sudden. I would put the van in drive or reverse and the oil pressure would bounce around, idle was very rough. Acceleration was slow and lacking in power.

I opened up the hood and the interior to check everything out and found that two of my passenger side spark plug wires had come out of the tie-down above the manifold and were basically burned up from resting and rubbing against the exhaust manifold.

I replaced the wires and the plug while I was in there but noticed this opening on my passenger side exhaust manifold. I cant find my service manual but I'm thinking there used to be something attached there. ;) Any ideas?


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There was a pipe that ran from the manifold to the air filter housing. It transfered warm air to the intake. It was a mileage thing.
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