After attempting several things, including but not limited to a new starter, reostat, and 2 batteries, after starting my 7.3, the reostat wants to continue to click and click and click....after it is warm and then restarting, the number of times it resets itself (or clicks) is around 20 or 30.....not good!

Need some advice. I can only think of a ground issue because it has been up north for some years.

Thanks.

 

its the glow plug controller.bypass and carry on with life

 

If you are talking about the glow plug controller it should go click click for awhile. does it eventialy stop?

 

It does eventually stop, but it did not do this before I began this process. I was wondering if it is bad on this new ($140) part?

 

Don't be panicking yet........

93 year info.......other than some fuses mentioned the 7.3 system 87-94 is basically the same.

GLOW PLUG CONTROL
HOW THE CIRCUIT WORKS
The Glow Plug Control circuit applies power to the Glow Plugs, which heat the combustion chambers so that the diesel engine can be started.

Glow Plug Controller
The solid-state Glow Plug Controller, attached to the top of the engine block, controls the Glow Plug pre-glow and after-glow time. It also controls the circuit’s operation by sensing engine temperature, Glow Plug voltage and after-glow voltage
from the start/run circuit.

When the Ignition Switch is turned to START or RUN, voltage from Maxi-fuse K is applied through the Glow Plug Controller to the Wait-To-Start Indicator Lamp.
The Glow Plugs heat up in zero to fifteen seconds, depending on engine coolant temperature. After the Glow Plugs heat up, the controller cycling switch opens and turns the Wait-To-Start Indicator Lamp off. The Glow Plugs are now warm enough for the engine to be started.

At the same time the Ignition Switch is turned to RUN, voltage from Maxi-fuse K is applied to the after-glow timer (located inside the Glow Plug Controller). The after-glow timer cycles the Glow Plugs for up to two minutes, depending on engine temperature. The after-glow timer then opens. The Wait-To-Start Indicator Lamp will not light during the after-glow period.
If the Ignition Switch is turned OFF, it can be turned to ON immediately, and the Glow Plug heating cycle will start again.

Diesel Start/Run
The diesel engine uses two batteries to provide extra power for starting and Glow Plug heating. Power is applied from the batteries, through heavy gauge wires, to the Starter Solenoid (located in the Starter Motor assembly). When the Wait-To-Start Indicator goes out, the Ignition Switch can be turned to START.

With the Ignition Switch in START or RUN, voltage is supplied to the Fuel Heater, Fuel Shutoff Solenoid, and the Engine Temperature Switch through Maxi-fuses K and U.
The Fuel Heater is in the Fuel Filter/Separator. It heats the diesel fuel, melting any wax that might clog the filter. The heater has an internal thermostat to turn it on as needed at 32*F.

The Fuel Shutoff Solenoid controls the flow of fuel into the injection pump. With the Ignition Switch in START or RUN, the Solenoid is energized, and fuel is allowed to flow into the injection pump. When the Ignition Switch is turned off, the solenoid is deenergized, fuel flow stops, and the engine stops running.

The Engine Temperature Switch provides voltage to the Cold Timing Advance Solenoid and the Cold Idle Solenoid. When the engine temperature is below 112°F (44°C), the Engine Temperature Switch is closed. When the Ignition Switch is turned to START or RUN, the solenoids are energized, advancing injection pump timing and engine idle, allowing the engine to run more smoothly when cold. When the engine temperature reaches 112°F (44°C), the Engine Temperature Switch opens. This deenergizes the solenoids, returning the timing and idle to normal.

 

sounds like your old glowplug relay wasn't working was it hard to start be for you started? During the after glow cycleing the controller will click on and off. or am I miss understanding and its clicking real rapidly?

 

Thank you all for your input...George D, you are correct in stating that the after glow relay may be the problem, however this is a new part? And this clicking went on and off a couple of times prior to the new part. So, the old original part seemed not to have this problem. I wonder if electrical parts are backed with any warrenty?

 

No I'm saying the after glow is whats clicking and that is what it does when working properly sounds like the old one may not have been woking. If I stand next to my engine while its just been starting mine clcks on and off for a while in side my truck theres so much sound deadning that I can bearly hear the engine with the windows up.