Removing swollen glow plug -lb7 Duramax 

1991 ford f250 had too tight of area to get a wrench down on the glow plug threads. Found a nut just large enough to go over the glow plug and used something to push against the nut while turning the glow plug with impact or air ratchet. It worked great on getting the 4 glow plugs out that were swollen.

Thank you so much for this advice. This technique worked beautifully.

You just saved me from going to a shop! Thank you!!

Thanks bro! Very creative really appreciate the input. Now gotta rip these autolites off my truck. Good thing I read about them before actually putting on miles.

Thanks for the tip, it made the other 4 plugs much easier... should have watched this sooner

You are a hero and a national treasure. Thank you

I'll be trying this on my Mercedes C-Class in the next few days - I have the same problem as you described with your vehicle. Thanks for the great tip..we'' see if it comes good!

Thank you I ran into this problem on my lmm hopefully it works for me tomorrow as good as it did for you

This helped me out on my LB7. Hell yea. Thanks for the video!

Saved me today with this.....thank you for the tip!

Thank you , we just did what you did and it worked!!!!!

Good idea, thanks!

Lucky you had the exposed thread to work on. I'm in a more dire situation...

Can the glow plug 8 failing cause the truck to run rough when it is at operating temperature? I have no throttle response and engine has reduced power. Please help I’m tired of getting stranded

Nice...gonna have to give it a try

backpressure while spinning plug worked for me. if only i coulda heated the tip!

threada in head get messed up?

Glow plugs have thread difference bosch and beru to thin it wont grip in engine bosch .beru thick fits so check threads match🤔

Een worse.. same motor,.. firewall ,passenger side the BOLT spins freely and glow plug is stuck.. so obviously the hole is sucking air into that cylinder.. will try your method.. tried next one to it, wouldnt even turn..so waiting on penetrating oil to do something.. Oddly enough the test light flashes when i touch half way down the exterior tip..

why the glow plugs get swollen ???

interesting video but my problem is the internal electrode and broken tip. how to remove this? photo for ref: imgur.com/Rvhq34S

Looks like following behind you will lead someone to break the damn plug inside the block. No thanks.