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Old 12-18-2013, 10:10 AM
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Glow plug questions

Okay so my truck sucks to start in the morning, even with it plugged in all night. I think the block heater is not working at all but that's a separate issue.

I am going to replace all 8 glow plugs and the relay with a bigger relay. My question is two-fold:

Is there a pictorial of how to change them out?
More importantly - when I do change them out, do I need to change the UVC gasket and the GP harnesses?

For example on ebay:

94 97 Powerstroke 7 3L Diesel Glow Plug Kit Gaskets Harnesses 8 Plugs Pigtails | eBay

Or is this just an unneeded expense?
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Old 12-18-2013, 10:37 AM
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First off dont use anything but motorcraft ZD11 glow plugs. Anything else seems to have issues breaking off in the head.

Secondly the best way to determine if you need all that is take a look at the plugs going into the valve cover gaskets. If they look burnt at all or have bad ends its a good sign you may need all that. A lot of guys just replace what is bad but I am one who replaces all of it at one shot.

I dont know of any pictorials but it is really straight forward once you get the valve covers off (the hardest part actually). I reccomend a 10 inch piece of 1/4 inch fuel line to get the glow plugs out as they sit down inside the head pretty well. I have an engine on a stand I could take some pictures of if you really need it?
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Old 12-18-2013, 10:42 AM
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Quote:
Originally Posted by kanuck15 View Post
First off dont use anything but motorcraft ZD11 glow plugs. Anything else seems to have issues breaking off in the head.

Secondly the best way to determine if you need all that is take a look at the plugs going into the valve cover gaskets. If they look burnt at all or have bad ends its a good sign you may need all that. A lot of guys just replace what is bad but I am one who replaces all of it at one shot.

I dont know of any pictorials but it is really straight forward once you get the valve covers off (the hardest part actually). I reccomend a 10 inch piece of 1/4 inch fuel line to get the glow plugs out as they sit down inside the head pretty well. I have an engine on a stand I could take some pictures of if you really need it?
No I don't think I need pictures, but I appreciate the offer. My question now is, what does 1/4 fuel line have to do with getting the plugs out?? What tool do I need to get the old plugs out?
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Old 12-18-2013, 10:57 AM
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Just use a deep well 1/4 drive 10mm socket to loosen the glow plugs. The issue a lot of guys run into is their socket hits the rocker arm and it wont come out. So what I use the hose for is to slip over the end of the glow plug once its loose and turn it out that way. Obviously use the socket to break the plug free and run it out a few turns but the hose does the rest.
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Old 12-18-2013, 11:04 AM
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Got it...thanks!
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Old 12-18-2013, 12:07 PM
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also, make sure that your locking mechanism on your socket is good, or use some electrical tape to secure it to the extension. Not entirely uncommon for your socket to fall down into the oil passages.
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Old 12-18-2013, 12:55 PM
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Quote:
Originally Posted by kanuck15 View Post
Just use a deep well 1/4 drive 10mm socket to loosen the glow plugs. The issue a lot of guys run into is their socket hits the rocker arm and it wont come out. So what I use the hose for is to slip over the end of the glow plug once its loose and turn it out that way. Obviously use the socket to break the plug free and run it out a few turns but the hose does the rest.
this. i don't have a 1/4 deep 10mm so i used a 3/8 then take it off and use a pice of hose to get the old one out and the new one started. for parts tousely ford has great prices and pretty quick shipping. ford wants $18 apiece for GPs tousley ford wants 8.xx. (i know because i just ordered 8 to do one of my trucks)

it appears tousley has changed their name

AutoNation Ford White Bear Lake | White Bear Lake New & Used Ford Dealer serving Minneapolis, Roseville & St Paul Minnesota
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Old 12-18-2013, 02:06 PM
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I used a 10mm deep well 3/8 drive socket, literally last week to install/remove glow plugs, think I paid 8-10$ each on amazon shipped, to make removing the pass side valve cover easy tho take the bolt off that small box on the side of the blower motor box, save yourself some headache, I didn't use any fuel line for this tho
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