Can someone recommend an oil pressure switch for installation in the transmission test port? I'm installing a temperature monitoring system (Engine Guardian), which also can throw a warning sound and light triggered by a pressure switch.
What would be a good switch trigger point (psi) for indicating low pressure in the trans?
Thanks for that info. We destroyed our transmission couple of weeks ago when a cooler hose came off and we didn't realize it until it was too late. Want to prevent that from happening again. From the chart you posted it seems that 50psi is the area of lowest pressure level, so a pressure switch with e.g. a 30psi trigger would indicate if the tranny lost typical operational pressure. I don't need a complete system including a gauge, etc. Just looking for a pressure switch that would short to ground at the trigger level (e.g. 30psi). That's the signal my control system will pick up and throw a sound and led alert.
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