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Re: 2006 F150 Auto Transmission makes a grinding noise
This is a dust plug and you may discard this; this plug will be in the pan if this is the first time the fluid has been changed it is very possible it could be causing the grinding noise also see if there is small metal shavings in the pan and be sure to put the magnet in the same place it was when you put it back together
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If it's hesitant to shift, or not shifting at all, it could be a simple fix.
The first thing you'll have to do is to check the transmission fluid. Allow your van time to completely warm up before doing this. I recommend you do this while it is running. If it is low on fluid, there's your problem. If the fluid level is okay, then you may need the transmission filter and fluid both changed. Changing you fluid/filter is relatively simple. It's similar to an oil change with the exception being that the filter is inside the transmission, visible only when you remove the transmission pan. The filter isn't like an oil filter, it's more akin to your filter on your home A/C unit. Some have a replaceable filter, and some have a permanent filter that you'll have to remove and clean before re-installing. If you do need to replace it, they are inexpensive and found at any auto parts store. If it's still giving you problems, unfortunately it may be an internal problem that you'll have to take to a transmission specialist. Make sure to find out exactly how much fluid it holds and what type of transmission fluid it needs before you change it.
The German manufacturers came up with a great new idea that many others have now copied and that is to eliminate the under bonnet filler tube and dip stick. Some of the German manufacturers have decided to eliminate engine oil dip sticks as well. These people are just so innovative.
Thus you have to use the correct filling procedure as laid down by the manufacturer which involves filling the auto transmission from under the vehicle by removing the filler plug on the side of the auto unit and pumping in the fluid. It used to be so much easier.
Obviously this is best done on a lift/hoist and the vehicle must be level.
Here is some info on the Audi A6 auto trans you may find of use..................
the parking spaw inside trans came off, remove trans pan, drain fluid, get a new trans filter and fluid, and a repair manual for this vehicle, it will show you what to do, its easy fix, as long as nothing else is bad. parking spawl is visable , will probably be in pan when you remove it.
did you use the proper transmission fluid to fill it back up? for gm it should be dexron. If you filled it to the proper level with dexron and it is grinding then how did the old fluid look? brown and smelled? if so the fluid was WAY past due for a change and probably damaged your bands, which you are now hearing with the new fluid in it.
Change of fluid and filter helps. The condition of the old oil will tell you weather there might be more damage. Debris on the oil may also be found in the transmission solenoid which controls the fluid which engages the gears. Your solenoid may be dirty or damaged. It is also possible that the valves for the 3rd gear is dirty that is why you are staying on the 2nd gear. These two components needs to be inspected further by opening the transmission.
Has he changed the fluid? this might be all thats needed also can get some good additives these days to help sticking valves in transmission and not too expensive either (approx £30... $50 ?) which for the sake of this small outlay is worth the risk.