How do I by pass the glow plug controller on a 6.2
The pump is worn and I need glow plugs for starting the engine when warm
If the engine is warm, glow plugs are not needed. Sounds like you have a sticky delivery valve in your pump. Try a fuel additive with lubricity and cetane booster. IE PowerService Also, before you start the engine give the foot feed a pump like you would a carburated engine. This will move the valve manually and hopefully work it to free it up a bit.
Fix it, or have it fixed. Have it diagnosed properly to know what needs fixing. The main possibilites are failed glow plugs, the glow plug harness could have issues or the glow plug controller.
The glow plug controller or power solenoid has likely failed. The solenoid is located on the driver's side inner fender. If the solenoid tests ok with the key in run, then replace the glow plug controller.
controller is bad. Check to see if you are getting power to the controller!
The glower relay itself and it's associated controller don't have fuses as such. Each glow plug has a fusible link (which is similar) but you wouldn't know to check this if the 'Wait to Start' or 'Glow Plug' light was lit as normal. Troubleshooting a bad glow controller is a little more complex and you need to verify that the plugs themselves are OK first.
well if you have a code for the glow plug circuit then you may or may not have a glow plug issue. Could be wiring or relay or the controller. If all is ok glow plugs typically have 0.05-0.08 ohms of resistance when bench tested out of vehicle. Good luck hope this helps.
remove your air cleaner then right behind it (closest to firewall) Is your glow plug controller! that is where the controller is for the glowplugs, but the relay switch for the glowplugs is on the passenger side of the motor. it is bolted on to the side of the fender. hope that answers your question
The Glow plugs on a 7.3 Diesel International are located at the top of the intake manifold. There is 1 plug for each of the 8 cylinders and each plug will have a single wire connected to the top of it.These 8 wires go into a harness which leads toward the rear of the engine where you will find the "Glow Plug Controller". The engine I am refering to is a 1988 model, however, I would think a 7.3 is a 7.3. The Glow Plug controller has been a source of trouble on mine but check the plugs first.
Behind the front left wheel on the outside of the frame there should be a small box with a plastic cover. Remove the cover and you will see a relay marked "glow plug).
the glow plug controller is grounded through the coolant temp sensor . @ 16,000 ohms resistance... normal...seems to have to have it to work. new controllers by international seem to be real resonsive. smaller electronics.
Under the dog house. Square box filled with a soft gel
Glow plugs don't necessarily have a fuse. They do have fusible links though. That is a wire with a smaller gauge wire in line that will burn should a short occur. On a ford they are usually near the glow plug controller. However all the glow plug wires on idi fords are made of the fusible link wire so they could realistically burn in 2 anywhere.
Maybe, If the glowplugs stay on they can be damaged or destroyed. When you get into the unit the start sequence is: Controller tells the glow plug relay to send power to the glow plugs. The length of time is set by an engine temperature sensor. If the relay is stuck then the glow plugs will stay on during engine operation. This will kill them pretty quickly. I'd bet on the relay being stuck (welded closed) A bad system controller Or leaking injectors, on some engines leaky onjectors can cause glow plug failure. You don't state make and model so one cannot be sure about the last comment.