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Thanks to F350-6 for bringing this to everybody's attention!
Like many others here, I took a look at mine today and had some wear which required a judicious use of some of Scotch's best 33+.
In a few places, the insulation and dust had worn through the valve cover's paint, leaving it ripe for the inevitable short that was otherwise yet to come someday.
Good catch!
Pop
Last edited by SpringerPop; Aug 4, 2007 at 07:00 PM.
Well I feel better knowing that all of you can avoid the problems I had, not to mention the $275 the dealer charged, with a 50 cent roll of electrical tape. I do feel better now that I have confidence in my truck once again. It's too bad the dealers aren't more honest and just type up the invoice to say:
Electrical wire $0.50
Knowing which wires to tape $274.50.
I would have felt much better paying a bill like that.
Well I feel better knowing that all of you can avoid the problems I had, not to mention the $275 the dealer charged, with a 50 cent roll of electrical tape. I do feel better now that I have confidence in my truck once again. It's too bad the dealers aren't more honest and just type up the invoice to say:
Electrical wire $0.50
Knowing which wires to tape $274.50.
I would have felt much better paying a bill like that.
I hope you are all fixed up. I have not noted a problem with mine but I can say I was in the engine vee once fooling with fittings and wiring when I took a pretty good jolt???? I have not figured out what that was and even posted about it. Needless to say, I don't fool around there with it running anymore.
I also put a one-inch square piece of 3/8" silicone foam rubber padding between the wire bundle and the valve cover.
Pop
Don't forget to stick one uphill from there where the wiring goes through the hole in the bracket. That's were my problem ended up being. I plan on taping a rubber hose around the wires through that hole.
Note: It's not a good idea to put any pressure on that wire bundle and connector by inserting pads between the wires and the VC. The Ford tech who pointed out this problem area to me also showed the correct way to fix it. If you note the pic I posted in #143, you should carefully bend the metal CCV bracket the connector is attached to so that you've got the finger width clearance between the VC and the wire bundle.
Note: It's not a good idea to put any pressure on that wire bundle and connector by inserting pads between the wires and the VC. The Ford tech who pointed out this problem area to me also showed the correct way to fix it. If you note the pic I posted in #143, you should carefully bend the metal CCV bracket the connector is attached to so that you've got the finger width clearance between the VC and the wire bundle.
Good info, but what about some padding or rubber conduit where the wires go through the bracket where my short was? I travel a lot of bumpy roads so I either have to put something in there or plan on applying more tape every couple of months. The tape job I paid for doesn't look like a long term fix.
Good info, but what about some padding or rubber conduit where the wires go through the bracket where my short was? I travel a lot of bumpy roads so I either have to put something in there or plan on applying more tape every couple of months. The tape job I paid for doesn't look like a long term fix.
I'm not sure where your short is, but some of these wires carry a fast rise time 120 VDC pulse from the IDM to activate the injectors, and they're kind of like ignition wires in a gasser. The insulation on them is not the best, and it tends to age, dry out, and crack due to the heat from engine. That's why it's best not to move the wires around or squeeze them together by wrapping the bundle tightly with tape. The connector uses crimp push pins, which is why it's not good to put a pad there which would apply pressure and transmit vibration. It's best to treat them like ignition wires by providing plenty of clearance, and shielding them from heat as best as possible.
I'm on a plain cell phone connection now, and can't look at pics and graphics, but when I get to a WiFi, I'll look at your pics, to see where your short was, and will hopefully remain as a past tense.
I'll be looking there as well, thanks for posting those pictures.
Gene for something to get you started: if you stand on the bumper and look straight down at the bracket that holds that intermediate plastic piece for the air intake tube. The one that has the CCV passage in it and joins the two rubber boots together between the air filter housing and the turbo inlet.
Stand directly over that and sight down the two bolts like a rifle sight that hold the plastic fitting and you will see under the bracket the wiring harness as it passes under the steel piece.
His wiring harness was chafing at that point. It's at the back side of the 40+ pin connection that is the engine wiring harness.
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