Hi Guys, I was checking things over under the hood and noticed a solenoid down by the HPOP, the reason I noticed it is because the magnet spacer and nut had come off. I found the parts laying in the manifold valley and reinstalled.
I was just wondering what this solenoids function is....

 

gpr???? ??

 

It's either the glow plug relay or the intake air heater relay.

 

Thanks but its not a relay, I know where they are. This is a solenoid valve, it looks like it is attached to the high pressure oil pump....

 

Thats the IPR.. Screw it back together. The copper nut goes on last and holds it in place.

 

I did put it back together, I am wondering what is its function???>?

 

IPR = Injection pressure regulator. Its function is to tell your HPOP how much ICP (Injection control pressure) the PCM is commanding. Basically it fires your injectors.

 

Thanks Super. appreciate the info. I am a heavy equipment mechanic so I like to understand what I am working on.....

 

Hi neighbor. I think you are the 1st person on here I have seen who is close to me...

 

Hello ghig, yes you are close. I get out your way quite often. Nice to find a neighbor on here, this is a GREAT website for our trucks!!!!

 

I agree.. these guys are awesome.. I have learned so much about my truck from the people on FTE. I was in a bind about a month ago after installing my DP Tuner & the help I got was great..

 

Ive attemtpted to change my glow plug sylinoid on my 2000 7.3. But there are 2 sylinoids which 1 is glow plug? And wat is the other 1? Thanks in advance

 

The one closer to the firewall is the glowplug relay. The other is for the intake air heater.

 

Was the rig running ok like this? Sounds like the solenoid stayed in place - that's pretty amazing.

A picture of the IPR in place and the link I pulled it from below:



https://www.ford-trucks.com/forums/934226-bad-icp.html

EDIT: I see this is an old post - oops