Debbie 1 Report post Posted September 7, 2019 I wanted to be able to know my actual temp and oil pressure so I installed gauges on my pillar But I want my gauges to work in the cluster also is this possible? my mechanic told me it’s not possible to have the gauges working in the cluster and the pillars gauges at the same time. cant I just install a T? Quote Share this post Link to post Share on other sites
Midlife 814 Report post Posted September 7, 2019 1 minute ago, Debbie said: I wanted to be able to know my actual temp and oil pressure so I installed gauges on my pillar But I want my gauges to work in the cluster also is this possible? my mechanic told me it’s not possible to have the gauges working in the cluster and the pillars gauges at the same time. cant I just install a T? Only if they have completely separate sending units, gauge wiring and gauge power. Quote Share this post Link to post Share on other sites
danno 128 Report post Posted September 9, 2019 A T on oil pressure will work fine, but if you use it for temperature the tips of both sensors will not be directly in the flow of coolant fluid. They might read a few degrees cooler than if the sensor tip was installed right in the coolant flow passage. Quote Share this post Link to post Share on other sites
danno 128 Report post Posted September 9, 2019 Also, as midlife suggested, they would need to be electrically completely separate systems. Quote Share this post Link to post Share on other sites
1969_Mach1 333 Report post Posted September 9, 2019 Coolant temp sensors will not operate any where close to correct unless the sensor is fully submerged in the coolant flow. So having two functioning temp gauges is a little tricky since most intake manifolds only have one correct location for the sensor. For best results you would need to drill and tap another location for the second coolant sensor. Then it's a bit of a gamble that the intake manifold material is thick enough where you drill to obtain a good seal when finished. Quote Share this post Link to post Share on other sites
cavboy78 28 Report post Posted September 9, 2019 You can buy a thermostat housing with a threaded port already in it. . https://www.cjponyparts.com/thermostat-housing-with-threaded-port-260-289-302-351w-1965-1973/p/TH16/ 1 Mach1 Driver reacted to this Quote Share this post Link to post Share on other sites
1969_Mach1 333 Report post Posted September 9, 2019 Yes, you are right, there are thermostat housings with ports already in them. But that is not the correct location for a temp sender. It will not read accurate engine temps when the thermostat is closed. Quote Share this post Link to post Share on other sites
cavboy78 28 Report post Posted September 9, 2019 understand, but that should only be when the car is warming up. I would think this is the easiest way for someone who is not necessarily inclined to drill into their manifold. Quote Share this post Link to post Share on other sites