Big drop in RPMs from park to drive. (6 Viewers)

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Joined
Jul 23, 2019
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Location
Portland, OR
Any ideas on this?
When I’m in Park, it’s at the 800, almost 1000 RPM, and then when I put it into Drive, it nearly stalls out, drops down to 200, and my old pressure goes down.

When we did the pump, we also did the wholesale automatic nomad valve body, so I’m not sure which one is causing it.

1990 HDJ81 1HDT


 
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