Installation Time: Afternoon
October 06, 2017
READ THIS FIRST ALL YOU V6 OWNERS
If you are adding this water temperature gauge in a 3.7L Mustang, it will require separately purchasing an AutoMeter Radiator Hose Adapter 2283, made of aluminum and developed for mechanical and electronic gauge coolant temperature sending units with 1-1/2" inside diameter radiator hoses. This kit also supplies two clamps, wiring and other fittings. I ordered this adapter from one of several sources as AM does not carry it.
My mechanic installed the new AutoMeter hose adapter in my 3.7L engine, and here are the steps I observed, although I highly recommend having a skilled mechanic make this change rather than a novice like me. First, be sure to have old towels available and plastic cups to catch any spilled antifreeze. Let the engine cool before slowly releasing the hot radiator cap's pressure a little at a time. Drain the upper coolant overflow tank by mechanically siphoning the hot antifreeze into a clean spare bottle.
The hose that the new adapter goes into on the 3.7L is the forward upper 1-1/2" radiator hose. Loosen its spring clamp where the hose attaches to the block and pull back. Place towels in the engine area under this and have a plastic cup ready. Try to clamp or squeeze the hose about a foot away from where it attaches to the block if possible to minimize spillage. Then pull the hose away from the block and catch the residual antifreeze.
The new sensor will go in the middle of this loosened hose. Cut the hose about 8" back from where it goes into the block in the middle of a straight section. Remove a piece of the hose that was just cut about the width of the center section of the new adapter. Then install the adapter in the middle of the heater hose ends with the two clamps in the kit. Reinstall the hose back onto the block using the OEM spring clamp.
Connect the ground wire from the new gauge to the upper intake bracket on the cylinder head to make the gauge work. Connect the signal wire to the top of the sensor. Then refill the original antifreeze into the overflow tank. Run the engine to check for leaks and be sure the gauge works. We found a small antifreeze leak in the center of my adapter and used teflon tape inside one bolt and screw fitting. We tested again, and everything was dry and the new gauge operated properly as my antifreeze heated up.
My '14 Mustang now has three great looking Ford Racing gauges on the left side of my interior. They light up at night and create a nice effect in my interior, but their lights are off during the day yet still readable. If you want to add an excellent looking racing touch to your Mustang, then adding these Autometer gauges are highly recommended!