Hello so I’ve recently swapped a 360 out of a 2000 Dodge Ram 1500 into my 1997 Dodge Ram 1500 that had a 318. Everything gone very well asides from a few connectors I had to swap over. The problem now is I noticed there was one plug I didn’t plug in which is because the 97 had a temp gauge sensor and sender but the 2000 only has one threaded hole for one sensor. Has anyone ran into this? If so what would be the best option to have both the ecm getting the temp and the gauge. Thank you.

 

Two choices, swap the intake manifold for the 97 one, (they are the same, regardless of displacement) or, drill and tap a hole for the second sensor. The one-wire sensor for the gauge went away in 98. A LOT changed in the electrical system in 98.....

 

swapping the intake is a lost cause as that motor is long gone. There’s would be no other option in the wiring to make it work off that one sensor? I would prefer wiring over drilling and tapping if possible. I was actually surprised I took the whole wiring harness expecting to have to switch a bunch of connectors or possibly even switch the whole harness, only had to to do the crank sensor and oil pressure sensor as the connector ends were different. Everything else was plug and play.

 

You might try adding a brass tee and running both sensors off the same hole on the intake. You can find brass fittings at local auto parts stores or home improvement/hardware stores, such as Home Depot and Lowe's.

 

No way to make it work off of one sensor. Plumbing in a T, and running both sensors on that is an idea, but, I suspect it would be inaccurate, and may cause other problems. Drilling and tapping is the best alternative. Either that, of find a 96-97 intake in the junkyard, and install that.

 

what about teeing into the heater hose, so the sensor is getting flowing coolant and being in the middle rather than sitting in non moving coolant by teeing in the one hole and putting both sensors

 

Sensor for the gauge is a one wire sensor, and needs a ground as well. Won't get that in a the heater hose, unless you provide one.

 

Not the prettiest, but did the trick