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Tractor Talk Discussion Forum

OT-F250 glow plugs

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m wdd

01-02-2006 17:24:58




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Could some one give me some info on changing the glow plugs on my 95 7.3 F-250? I took the cover over the fuel filter off but don't see any sign of the plugs. Are they under the head covers? I have replaced the relay 3-4 times but now the truck won't start at all. It stays in a heated shop in the winter so it's not because it's cold. We had trouble with it for a while starting hard when just started but when restarted after running and warm it starts right up. Any help would be appreciated.

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thejdman01

01-03-2006 06:40:17




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 Re: OT-F250 glow plugs in reply to m wdd, 01-02-2006 17:24:58  
Also I wouldnt put antyhing in any vehicle unless it were bosch. Stay away from autolites.



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thejdman01

01-03-2006 06:33:08




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 Re: OT-F250 glow plugs in reply to m wdd, 01-02-2006 17:24:58  
Maybe I will add some horror stories. On Gm diesels (no wise marks about duh gm's) They were sticking right out the head on the head. REAL easy to change. The only problems were the constant heating and cooling of the engine coupled with road salt could make them be TERRIBLE to change. Then you get some wham bahm wrench jocky in there and they would snap the heads off of them. Now your only recourse is to drill the glow plug out and tap it. If you do that on the motor it is very very difficult getting even a hand drill down there+ while drilling if you went too far the tip would fall into the combustion chamber. The end result, you were taking the head off. There are silly stories of taking the injector out and spinning hte motor over using a shop vac. As soon as you see the glow plug youll realize thats like suckign a golf ball through a garden hose. The only real way so that you know that you get all the chips and flakes so you dont imbed them in the piston is pull the head. Also the old early glow plugs would hve a habit of swelling. They would swell and you could unscrew them but they would not fit back out the hole. Again pul the head. You might as well try it as nok shop that i know of will accept the liability and responsibility of doing just glow plugs. Ie if you take it to the Ford dealership or whoever and they snap the head of the glow plug off dont expect as they wont eat the labor of tearing hte head off "because they broke it". Just be aware of the possibilities and be prepared if somehting happens. Your best friend is penetrating oil, good stuff, soaking them, slightly loosen slightly tighten, slightly loosen, spray, loosen, tighten, tighten spray back and forth back and forth again and again until they come out. Itdoesnt take alot to break a 10mm hex off even on a 1/4 inch rachet because they arent hardened at all as they are not relaly holding something together.

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kraigWY

01-02-2006 21:00:25




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 Re: OT-F250 glow plugs in reply to m wdd, 01-02-2006 17:24:58  
Go here, you will get indept directions for changing your glow plugs, I did it on two of my trucks. its not that big of a deal



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BobinKY

01-02-2006 20:28:44




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 Re: OT-F250 glow plugs in reply to m wdd, 01-02-2006 17:24:58  
My son just replaced a set in his 250 this weekend. He got the plugs from the local Ford dealer (about $8 each). You have to remove the air handling plumbing off of the top of the motor and remove the valve covers. Be careful when you do this as the wires run through the gasket. The glow plugs sit between the rocker arms in the top of the head. You will need a deep well socket (10mm I think) to get the old plugs out. Simply remove the wire attached to the plugs, remove the plugs, insert the new plugs and replace the valve cover. It is about a 3 to 4 hour job but the dealer wants about $450 to do this and you can do it with simple tools and a little elbow grease. Good luck.

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dan67

01-02-2006 19:31:29




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 Re: OT-F250 glow plugs in reply to m wdd, 01-02-2006 17:24:58  
just had a shop replace mine, didn"t have the time to do them. I have a 94 7.3 power stroke. I"ve been told to use only factory ford replacements. Here is a web page that is very helpful. www.intellidog.com/dieselmann/tech.htm



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Jim K

01-02-2006 18:16:01




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 Re: OT-F250 glow plugs in reply to m wdd, 01-02-2006 17:24:58  
There under the valve covers.
Do you have about 5 wires going under the valve covers.
Be glad that you have the older body style the newer trucks are a real pain to work on because the motor is just about under the dash.



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Jim K

01-02-2006 18:14:39




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 Re: OT-F250 glow plugs in reply to m wdd, 01-02-2006 17:24:58  
There under the valve covers.
Do you have about 5 wires going under the valve covers.
Be glad that you have the older body style the newer trucks are a real pain to work on because the motor is just about under the dash.



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