#5 Glow Plug Replacement
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#5 Glow Plug Replacement
Is there a good thread (w/ pictures?) out there that shows how to replace a glow plug on the 6.0?
I've done some quick reading and some people are saying to remove the wheel well cover and that gives you the best access. Does that sound right?
Any tricks to removing the wiring harness?
Any other tricks?
Thanks in advance for any help
I've done some quick reading and some people are saying to remove the wheel well cover and that gives you the best access. Does that sound right?
Any tricks to removing the wiring harness?
Any other tricks?
Thanks in advance for any help
Hotshot
Joined: Apr 2010
Posts: 19,071
Likes: 240
From: Saratoga Springs,UT
Yes much easyier on the passenger side to pull the wheel well to get the GP out
Be VERY VERY careful when you pry the GP harness off work it off each one alittle at a time
The GP wire harness Breaks very easy
And pry the GP harness up and off from the Bottom
Iv had mine off a couple times without breakage of the harness
are you getting a code or something or did you Ohm that GP out and it failed
Be VERY VERY careful when you pry the GP harness off work it off each one alittle at a time
The GP wire harness Breaks very easy
And pry the GP harness up and off from the Bottom
Iv had mine off a couple times without breakage of the harness
are you getting a code or something or did you Ohm that GP out and it failed
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Thanks for the input Blade35.
Ya I have a CEL right now calling out #5 cylinder. Dealer checked the FICM and injectors and they said it all checked out good. They then checked the glow plugs and pinpointed that as the reason for the CEL.
Wanted to save myself the money for them replacing it if it wasn't too hard.
Did you just pry the wiring harness off by hand or use any special tool?
After getting the wiring harness off, its just a matter of pulling out the old plug and putting the new one in right?
Ya I have a CEL right now calling out #5 cylinder. Dealer checked the FICM and injectors and they said it all checked out good. They then checked the glow plugs and pinpointed that as the reason for the CEL.
Wanted to save myself the money for them replacing it if it wasn't too hard.
Did you just pry the wiring harness off by hand or use any special tool?
After getting the wiring harness off, its just a matter of pulling out the old plug and putting the new one in right?
Hotshot
Joined: Dec 2003
Posts: 15,369
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From: Stuttgart, Ar
Removing the wheel well cover is the only way to go and gives very easy access to the harness and glow plug. DO order a new harness because chances are VERY high that you'll break one of the harness plugs taking it out. They are very engine specific so have your VIN # ready. They're not that expensive.
FYI--glowplugs rarely fail on a 6.0 Do a search on testing the glowplug and harness before you pull and replace one. Also, does it have a specific code?
FYI--glowplugs rarely fail on a 6.0 Do a search on testing the glowplug and harness before you pull and replace one. Also, does it have a specific code?
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If I remember correctly the code I got was P0205, but I'm not totally sure.
Like I said above, the dealer is the one that diagnosed it, for what thats worth. They said the FICM is good, and all injectors tested good. When they tested the glow plug it came back with a low ohm reading.
My #3 glow plug was replaced while the truck was under warranty.
Like I said above, the dealer is the one that diagnosed it, for what thats worth. They said the FICM is good, and all injectors tested good. When they tested the glow plug it came back with a low ohm reading.
My #3 glow plug was replaced while the truck was under warranty.
Hotshot
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
Disconnect the four wire connector that is clipped to your FICM mounting bracket (the one with the red lock tab). Using an ohm meter set to OHMs (preferably one that auto ranges), connect the red lead to each of the four female cavities with the black lead connected to your driver side battery ground terminal. Each of the four terminals should give you no more than 2 ohms readings. If this test checks out good, your GPCM likely needs to be replaced, provided the circuit is good between the engine harness side that connects to the GPCM and the glow plug harness. Yes, and P06XX glow plug control system codes WILL throw the CHECK ENGINE light on, because it is considered an emissions affecting component.
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Joined: Feb 2003
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From: Michigan
I removed/replaced all of mine about a year ago. I didn't have any codes yet, but I discovered 3 or 4 of my glowplug tips were distorted. They still checked out ok on an ohms test though.
I removed the wheel wells and rigged up something (can't quite remember what) to pull the harness plugs (do not pull on the wire). One side came out with no issue, but the other was pretty brittle and I had to replace the whole harness. If your harness comes out without any issues it would probably be a good idea to throw on some new o-rings. From what I remember you could get a set of 4 o-rings from the dealership separately.
I went with Motorcraft glowplugs as I had researched enough about the parts store brands like autolite failing/distorting. They are fairly inexpensive. I used a 1/4" drive ratchet with a 3" extension and a deepwell socket (can't remember the size, but I think it was 10mm or 12mm?). A little trick here.... Once the glowplugs are loose use a short piece (about 4"-5") of rubber hose that you can push onto the top end of the glowplug. It is hard to get them out without it.
I removed the wheel wells and rigged up something (can't quite remember what) to pull the harness plugs (do not pull on the wire). One side came out with no issue, but the other was pretty brittle and I had to replace the whole harness. If your harness comes out without any issues it would probably be a good idea to throw on some new o-rings. From what I remember you could get a set of 4 o-rings from the dealership separately.
I went with Motorcraft glowplugs as I had researched enough about the parts store brands like autolite failing/distorting. They are fairly inexpensive. I used a 1/4" drive ratchet with a 3" extension and a deepwell socket (can't remember the size, but I think it was 10mm or 12mm?). A little trick here.... Once the glowplugs are loose use a short piece (about 4"-5") of rubber hose that you can push onto the top end of the glowplug. It is hard to get them out without it.
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Joined: Mar 2011
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From: New Mexico
There is a tool made specifically for pulling the harness from the GPs. I bought a set of GPs on an auction site and they came with the tool. The part number for the tool is 303-1114. Google the number and you will find many sources for the tool.
I found a magnet worked well for removing the GP once it has been unscrewed.
I found a magnet worked well for removing the GP once it has been unscrewed.
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