Re: 1956 Packard 400 oil pressure gauge switch

Posted by HH56 On 2022/8/20 11:22:26

What sender are you buying? There are the gauge type which has a changing resistance for the gauges in senior models and the on/off switch type used on Clippers with idiot lights.

I know others have had good results and are using the Napa OP6091 with the senior models. If that is what keeps failing I would wonder if you have something external to the sender going on or if the sender is somehow not making a good ground.

If you are using teflon tape or some kind of sealant on the threads some of those products are known to not provide a solid ground.