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Thanks Wiswind -
I will check those things out and repost. It is the upper manifold that is being recommended for replacement and the bolts look easy. Is there a chance of O2 sensor malfunction on this? It seems this should be relatively easy to check.
I also replaced the air filter, which I could easily see light through, but dusty nontheless, and added the gray STP fuel system cleaner. The van seems to run a little smoother, but I am not imune to the placebo effect here. Since it is easy and cheap to do this I did it and it sure doesn't do any harm.
A question I have though is if, I am running lean wouldn't that affect the mileage? I have not seen any change and pretty consistently get about 350 miles to a tank and have since the car was new.
Thanks Again
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