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Old Apr 2, 2009 | 05:13 AM
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Glow plug issues

My truck has become hard to crank on cold morning's. I have checked the GPR (was good) and the OHM's of the 2 wires (brown and yellow) going to the plugs. I was wondering if there is any thing else i can check before i pull the valve covers and have to replace 80$ gaskets. I just changed the oil and fuel filter (i was told that the engine oil could affect the injectors) as well as add a can of Lucas injector cleaner to the tank. Thank's Chris for your help, really apriciated it buddy
 
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Old Apr 2, 2009 | 05:20 AM
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If your truck is hard to "crank", you are not having a glow plug issue.. If you would, please go back and inspect/clean/tighten your battery connections and get back to us..

By the Way, Welcome to FTE.. hang out, there is a great group of guys here..( and gals )
 
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Old Apr 2, 2009 | 05:34 AM
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I forgot to mention that i did that as well (cleaned the connections). The truck spins over good, just spins longer than it supposed to. And thanks this site is way cool i am glad i stumbled on it
 
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Old Apr 2, 2009 | 05:39 AM
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Dumb question, what is oil your oil level look like, and last time you changed it??

If both of these are Good and Recent, then we might have you check your oil level in the HPOP before you start it.
 
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Old Apr 2, 2009 | 05:47 AM
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i check it (enigine oil) at least once a week. I was reading about the HPOP (kinda in front of the FF cover) but i have never checked that. Didn't really know much about it. The engine oil was changed last weekend. I use mobil delvac oil. I am told it's the best
 
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Old Apr 2, 2009 | 05:50 AM
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I don't think its very common for VC gasket failures.

More common would be the connections to the VC,and the harnesses under the VC.The VC gaskets are reusable.

How long does the glow plug light stay on?

Check out post # 2 on this thread.

https://www.ford-trucks.com/forums/8...and-relay.html
 
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Old Apr 2, 2009 | 05:53 AM
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https://www.ford-trucks.com/forums/7...pr-system.html

Only because I dont want to really start chasing our tails here yet, with out you verifying your first thought, The link that I have attached will cover everything that you could think of for your GPR system. Read through this, if it doesnt help you find it, we can go from there.
 
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Old Apr 2, 2009 | 06:17 AM
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Welcome to FTE. The gaskets are reusable on our trucks. When you say hard to crank what do you mean? Turning over slower than normal? How old are your batteries? What do all the connections look like?
 
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Old Apr 2, 2009 | 06:25 AM
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Glad to see you figured out how to get the thread started. Since you've already tested the GPR with a meter, it's time to disconnect the flat connectors on the inboard side of each valve cover and ohm the pins inside the valve cover connector. The link above tells you how to do that. If you have questions or don't follow what's being said, feel free to ask and we'll dig up some pictures for you.

I've pulled the valve covers on several trucks and never had to replace a gasket yet. They're a rubber material that is re-usable, so no worries there.

If you end up needing to pull the valve covers let us know. There's a couple of things you should look at while you're in there. (That won't cost you any more money)
 
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Old Apr 2, 2009 | 08:44 AM
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Originally Posted by F350-6
If you end up needing to pull the valve covers let us know. There's a couple of things you should look at while you're in there. (That won't cost you any more money)

Except 50cents.
 
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Old Apr 3, 2009 | 05:26 AM
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thanks fella's you guys are a lot of help, i am going to play with some more things this weekend while i have time
 
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Old Apr 5, 2009 | 07:51 PM
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hey guys thanks for the help, my father and i changes the gp's on my truck today, was not as bad as i thought it would be. i'll see in the morning if it helps, thanks againg for all the info
 
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