Oil pressure release valve. | Ford Explorer Forums

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Oil pressure release valve.

flyy

New Member
Joined
April 6, 2025
Messages
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City, State
pacific northwest
Year, Model & Trim Level
2 aerostars 97 and 95
does the aerostar have an oil pressure release valve and if so where is it located?
 












What is an oil pressure release valve?

Oil pump turning you have oil pressure
Engine off no oil pressure

If you are looking for a place to drain the oil from the block at a low spot… there are some plugs in the 4.0 for that

The factory oil filters do have a pressure bypass built in

Purpose of the Bypass Valve:
The bypass valve is designed to allow oil to flow around the filter media when the filter becomes clogged, ensuring that the engine continues to receive lubrication even if the filter is heavily restricted
 






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