New Ignition Solenoid Update
I decided to start a new thread with an update:
My problem was the engine temperature gauge rising 10 degrees when switching the dash fan on to high - due to a voltage drop. I measured the voltage drop across my 25 year old solenoid:
0.5 volts with fan on high - not good...
The new solenoid is in and here is the reading:
0.005 volts with fan on high - big improvement
Now the temp gauge doesn't budge when running the fan. Also, the new solenoid makes a much more noticeable "Clunk" when it closes.
Solenoid I used - has silver tungsten carbide contacts:
Cole Hersee Continuous Duty 200 Amp Solenoid
Note that I grounded one of the small terminals. The OEM solenoid just had one small terminal, the coil is connected to ground internally.
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Topic: New Ignition Solenoid Update