This van has new heads (she got it hot, just trying to be thorough) and does not show any codes. but as the van accelerates, like when starting to climb a hill in overdrive, the van shakes like crazy. After it shifts and the RPMs get higher the shake immediately goes away and it runs like a dream. To be clear there is no power loss or miss. It, to me, seems like it is not inside the engine. maybe CV shaft or drive-train. This can happen at any speed but on the route I drove it occurred at 25 mph and 67 mph. I am looking for ideas on where to look before I take this in to get raped.Thank you in advance.
My car has 180000 miles.
My car has an automatic transmission.
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