8769bigred
Registered User
I’m trying to figure out how the manual glow plugs on my truck work. I did not install this system but it has worked amazing for the last 7 years since I have owned the truck.
There is a push button in the cab. When you hit the button the glow plugs run and then after a while the added solenoid begins to rapidly cycle. When that happens you stop, and start the truck.
I’m pretty sure this peice connecting battery hot via the factory glow plug solenoid is a thermal trip breaker. It says it’s rated at 40 amps. I think this is what gives the ‘automatic’ shut off signal to the driver
(the solenoid clicking repeatedly is the signal)
There is one other wire I don’t understand the purpose of. It sends power to the small white and orange wire at the glow plug controller connector. This wire according to my meter is the main power wire. I’m not sure how the signal is getting to the purple wire on the factory solenoid to open up big power to the plugs. Has any one seen this system?
There is a push button in the cab. When you hit the button the glow plugs run and then after a while the added solenoid begins to rapidly cycle. When that happens you stop, and start the truck.
I’m pretty sure this peice connecting battery hot via the factory glow plug solenoid is a thermal trip breaker. It says it’s rated at 40 amps. I think this is what gives the ‘automatic’ shut off signal to the driver
(the solenoid clicking repeatedly is the signal)
There is one other wire I don’t understand the purpose of. It sends power to the small white and orange wire at the glow plug controller connector. This wire according to my meter is the main power wire. I’m not sure how the signal is getting to the purple wire on the factory solenoid to open up big power to the plugs. Has any one seen this system?
