Damaged Glow Plug Harness
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Junior User
Joined: Aug 2011
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From: Warrenton VA
Damaged Glow Plug Harness
I managed to pull the passenger side head glow plugs with a home made special tool similar to the one shown in the Ford manual. It worked great! The same cannot be said for the driver side. When I used the tool, the tops pulled off two of the glow plug connectors, and a third was badly mangled. They just didn't want to let go. I used a christmas-tree fastener remover to pry them out from the inside.
I can probably reuse the existing harness, but the next time I need to remove the glow plugs, I'd have to tear the head apart, and I'm not looking forward to that. I'd like to replace it. Does anyone have the part number for the driver side glow plug harness?
I can probably reuse the existing harness, but the next time I need to remove the glow plugs, I'd have to tear the head apart, and I'm not looking forward to that. I'd like to replace it. Does anyone have the part number for the driver side glow plug harness?
Lead Driver
Joined: Mar 2010
Posts: 5,505
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From: Woodbridge, Ontario, CA
Assuming it's a 2005 and up model year, I believe the part number for the driver side glow plug harness is 5C3Z-12A690-A.
For what it's worth, on any job that requires removal of the glow plug harnesses for whatever reason, be that to access/remove/replace glow plug(s), I always quote a new set of harnesses in with the job. For the relative low cost, it's not even worth the effort (a failed one at that, nine times out of ten) to attempt to save them.
For what it's worth, on any job that requires removal of the glow plug harnesses for whatever reason, be that to access/remove/replace glow plug(s), I always quote a new set of harnesses in with the job. For the relative low cost, it's not even worth the effort (a failed one at that, nine times out of ten) to attempt to save them.
Hotshot
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
Got anything for earlier builds......like 10/03 although they're probably the same?
Fleet Owner
Joined: Nov 2003
Posts: 27,923
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Not sure if there is a different part between the buss bar (03) and the part # Mike gave. The info I had just listed the Jan 04 beginning date for harness - no number or reference to an earlier model harness. I bet you are right and it would be the same, but don't know for sure.
Hotshot
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
Not sure if there is a different part between the buss bar (03) and the part # Mike gave. The info I had just listed the Jan 04 beginning date for harness - no number or reference to an earlier model harness. I bet you are right and it would be the same, but don't know for sure.
Drivers side glow plug harness 04 and up 5C3Z-12A690-A
Passenger side glow plug 04 and up 4C2Z12A690AB
glow plug harness o-ring W300965
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Lead Driver
Joined: Mar 2010
Posts: 5,505
Likes: 257
From: Woodbridge, Ontario, CA
Microcat lists 4C3Z-12A690-AA (Passenger Side) and 4C3Z-12A690-BA (Driver Side) for build dates FROM 08/17/03 to 01/15/04 which I'm calling BULL***** because as I understand it, vehicles with build dates from 09/29/03 are the ones equipped with the LATE-BUILD engines (ICP sensor on passenger side valve cover), which ARE equipped with the glow plug HARNESS.
NOW, Microcat also lists 4C2Z-12A690-AB (Passenger Side) and 4C2Z-12A690-BA (Driver Side) part numbers for vehicles with build dates FROM 01/15/04 only to further add to the confusion.
If I were to guess, the part numbers that npccpartsman are after, are 4C3Z-12A690-AA and 4C3Z-12A690-BA if his vehicle is a 10/03 build (which makes it a LATE-BUILD 2004, of which there are two different variations of).
Hope this helps.
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Hotshot
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
Drivers side glow plug harness 04 and up 4C3Z-12A690-BA
Passenger side glow plug 04 and up 4C3Z-12A690-AA
glow plug harness o-ring W300965
The 4c2z is 2 feet longer on the connection end than the 4c3z and is also listed for an "E" series but it has the same connection end and would work. These numbers are highly dependant on ENGINE serial number so have that handy if you can when you call your parts guy.
So M-Chan MIKE you got it right and I want to give a shout out to MIKE at Tousley ford for taking the time to compare the harnesses for me.
Fleet Owner
Joined: Nov 2003
Posts: 27,923
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OK--here's what I actually need:
Drivers side glow plug harness 04 and up 4C3Z-12A690-BA
Passenger side glow plug 04 and up 4C3Z-12A690-AA
glow plug harness o-ring W300965
The 4c2z is 2 feet longer on the connection end than the 4c3z and is also listed for an "E" series but it has the same connection end and would work. These numbers are highly dependant on ENGINE serial number so have that handy if you can when you call your parts guy.
So M-Chan MIKE you got it right and I want to give a shout out to MIKE at Tousley ford for taking the time to compare the harnesses for me.
Drivers side glow plug harness 04 and up 4C3Z-12A690-BA
Passenger side glow plug 04 and up 4C3Z-12A690-AA
glow plug harness o-ring W300965
The 4c2z is 2 feet longer on the connection end than the 4c3z and is also listed for an "E" series but it has the same connection end and would work. These numbers are highly dependant on ENGINE serial number so have that handy if you can when you call your parts guy.
So M-Chan MIKE you got it right and I want to give a shout out to MIKE at Tousley ford for taking the time to compare the harnesses for me.
Lead Driver
Joined: Mar 2010
Posts: 5,505
Likes: 257
From: Woodbridge, Ontario, CA
Gee thanks Mark. It's funny how I'm reminded about this almost daily by so many of you, of whom I will likely never shake hands with, yet my own family has turned their back on me years ago.
Fleet Owner
Joined: Nov 2003
Posts: 27,923
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I've met a lot of selfish and self centered people over the years Mike, so when I meet people so willing to help, I feel it is important to say "thank you" a lot (maybe it is too much, but it is certainly sincere). I feel even more strongly regarding Techs that share their time and acquired knowledge. It seems that almost every Tech eventually gets burnt out due to people arguing with them, etc. - hopefully we keep that to a minimum here!!
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