O/T What is this in my trans. pan

37 chief

Well-known Member
I removed the transmission pan on my F150 today. I found a yellow plastic plug with a O ring attached to it laying in the pan. I could not see where it came from. I took it to the dealer to find out what it was from. The mechanic told me it was a plug for the dip stick tube top. When it came time for the dip stick to be put in at the factory the assembly person just pushed the down into the pan. They told me they see this all the time. I thought this is kind of a lame thing to do. stan
 
Probably wasn't a real problem, as transmission oil is picked up through a screen, and the plastic thingy wouldn't go through.
 
I found the same thing (yellow plug with an O ring) laying the bottom of the pan in old Crown Vic belonging one of my kids. A mechanic (whom I trust BTW) explained it to me the same as you were told.

It's indeed kinda lame. But I wouldn't worry about it as it has apparently been Ford SOP for years.
 
Yep!

You have found the plastic plug that plugged the oil fill port from the time the tranny was built 'til the dipstick/fill tube was inserted, knocking the shipping plug into the bottom of the tranny pan where it exists harmlessly 'til the first tranny filter change/repair when it upsets guys like you who find it lying aimlessly in the oil pan.

Would you rather they left the hole open for potential debris entry, rather than plugging it???
 
have found them in Chevy's and Dodges also LAZY UNION guys not doing there job. you can't believe what we have found in trans.and rear ends.best was a 10in. crescent wrench in the oil pan of a 454 Chevy [ came that way new] one end was over the oil drain hole and we could move it with our finger out of the way
 
I like the idea of a plug keeping things out of the hole. By pushing it into the pan the crud that has collected on top of the plug, goes into the pan along with the plug. the engineers put a 2in. stem (handle)above the O ring plug for it to be pulled out. I am upset anytime I find anything laying in the oil pan, and can't find where it came form. Stan
 
"with the plug the engineers put a 2in. stem (handle)above the O ring plug for it to be pulled out."

I can't prove my theory, but I always figured the 2" "stem" sticking above the plug was to guide the dipstick tube down into place, over the plug that was about to be knocked out. (In.)
 
While it may be harmless it is still sloppy/laziness. Sometimes mistakes were made on assembly lines and sometimes pranks were done as well. My Dad worked at a Chevy dealership in 1957 and a new truck came in with a complaint of a loud rattle in one door. He found an Ingersol Rand die grinder inside the door! He still has it and it still works great! I found a ton of body bolts down inside both rear quarter panels on a 69 Firebird. Pulled out 2 large coffee cans full worth of bolts. Had to have been at Fisher body as the trunk floor goes all the way to the quarter skin and there is no way to get bolts shoved in after the skins are put on. I also found a distributor points screw in the oil pan of a 70 cutlass I used to own. Had to be from the factory as I had all service records on that car and nothing was ever taken apart on the engine from new. The screw was wedged in the pickup screen on the oil pump and that one was a bit scary as there is a hole in the screen where it could have gotten pulled into the oil pump.
 
I was told the plug was installed on the inside of the tran. No way to remove from the outside when the filler tube was installed at the factory. There are many thing that many people put on lazy union member that are not there fault. They are the result of management STUPID decisions.

Kent
 
It was fords bright idea to stick that plug in the filler tube from the bottom with the stem going up the tube. It just lays loose in there with the pan holding it from falling out of the filler tube neck.

Once the pan is removed, the plug falls free and becomes a mystery piece in the bottom of the pan.

What it was for was if the vehicle ever rolled over, the plug would fall against the filler tube hole and stop atf from running out the filler tube. They later figured out it was easier to put a rubber stopper on the top side of the dipstick.

Funny thing is, if the vehicle lands greasy side up, fluid is still gonna run out the vent in the top of the case..
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top