Cannot loosed fill plug on 5 speed

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Feb 2, 2008 | 06:13 AM

cobra427

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Joined: Oct 2003

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From: Georgia

Cannot loosed fill plug on 5 speed

Hey guys, My 1996 f-350 351W five speed has a problem. I cannot unscrew the check/fill plug. I gave it all I had and used my leg as leverage and still no.

How do I check/fill the dope??

Feb 2, 2008 | 07:33 AM

Hunt4Fun

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Joined: Nov 2004

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From: Indianapolis

Try using some PB Blaster over a period of a few days. I've also had luck with trying to tighten the bolt first to break it loose and then try to unscrew it. If you don't have an air compressor and an impact wrench, you may have to take it to a shop that does. The vibration and the twisting usually will ease them out.

Hunt4Fun

Feb 2, 2008 | 09:08 AM

flareside_thunder

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Joined: Mar 2007

Posts: 1,757

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From: Florida

I second that.....and most of all GET MORE LEVERAGE!!!!!!slide a pipe over her and give her a shot...or get a longer crescent.

JR

Feb 2, 2008 | 10:52 AM

84-250

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From: Munroe falls, Ohio

Just take the shifter out and dump 4qts in.
If you want to remove the fill plug, try alittle heat around the plug

Last edited by 84-250; Feb 2, 2008 at 11:11 AM.

Feb 2, 2008 | 11:30 AM

quicklook2

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From: Lakewood, Ohio

heat and a square socket with a breaker bar and pipe.

Feb 2, 2008 | 05:34 PM

godblessmud

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Like 84-250 says just pull up the shifter boot, remove the stick and unbolt the tranny top cover, then pour in your Mercron. (well drain the old crap out first

)

Feb 2, 2008 | 06:02 PM

92mnfordtrk

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Joined: Sep 2007

Posts: 212

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From: Arizona

Mine was really, really stuck on too. Heat is about your best option. I don't know if pb blaster will really penetrate into there, but if it works go for it. Get more leverage, a pipe. Use a hammer. I had to use a 1/2" cheater bar and a pipe to get mine. Plus I had to shell out money for the cheater bar and the stupid weird 5/8s or whatever socket....

Anyways good luck

Paul

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Feb 3, 2008 | 03:32 AM

godblessmud

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I wouldnt advise using heat...Theres lots of small metal parts that are easily warped (and subsequently broken in use) in a transmission. While a manual is not as bad as an auto in that reagards i would still strongly urge you NOT to take a torch to your fill plug...

Seriously, pour in from the top is a much better idea, plus you get a perfect chance to perform this vital piece of M5OD maintenence.
https://www.ford-trucks.com/article/...e_Measure.html