Quote:
Originally Posted by pawoSD
to eliminate engine-death due to vac pump failure.
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The chances of that are extremely small, especially on 61x engines.
The automatics need a constant flow rate for the VCV to control shifting firmness. An electric pump would be running all the time.
The engine will run fine without the pump. It only rides on the timer's track and has no ties with engine operation except for the EGR and shut down, both of which can be eliminated.