It is ok to use the tape on the sender because the threads on it will cut through the tape and make a good ground contact. How To Install An External Transmission Filter Kit This tech article was originally posted at FordF150. Overall it took about three hours to install the kit. Enjoy your new external transmission filter! This is the line towards the rear of the transmission. This article and associated photos were written and contributed by thefordmaniac, and is used with permission. One person starts the engine, while the other holds the line over the drain bucket. Make sure you have the filter installed the correct way! So, why install an external transmission filter? Crawl under the vehicle and as you will notice the transmission cooler lines have moved do to the addition of the adaptors and now in some places they rub together.
I used a piece of stainless steel behind the cover to strengthen it up where the mount bolts in. Make sure that the O-ring is removed, too. Return here after step 4 and one pass through step 5a. You can find the outlet line when the truck is warmed up by feel, the outlet will be hotter. Always helps to have extra fluid! Run the engine for 30 seconds, then stop and add six more quarts. If you can change your transmission fluid and do basic automotive electrical work, then this install is quite simple. Install your adaptor fittings using Teflon tape and run your lines.
This is where the fluid comes out. The hardest part is the planning stage, so take your time, do it once, do it right. Sometimes it does not come out with the filter. As per maintenance I decided as the transmission was starting to show its age, I would install an aftermarket external remote transmission filter. It is primarily intended for Ford trucks but most likely also applies to other Ford models. Be sure the sending unit is grounded by running a wire from the filter mount to the firewall as you see in the picture below: I did not use Teflon tape on the sending unit at first until I discovered a leak. Secure the lines using zip ties, your ladies bra, dogs leash, the screw in wire keepers, whatever.
. And I used zip ties to secure the cover to the bracket on the fire wall to prevent the cover from popping off during driving. If you are not changing the filter, jump to step 4. I chose to run them along the length of the radiator shroud. Start the vehicle up and check for leaks. Repeat until you have added 13 quarts with the 4R70W. It just pulls out, there are no bolts that hold it.
You may use either conventional or synthetic, as long as it meets the above requirements. Install hose around these lines and zip tie them in place. Next, find the transmission outlet and inlet cooler lines coming from the transmission. There have been different size cooler lines over the years, so check before buying! A clothes pin can replace the person holding the line in the bucket. Be sure to check the specifications! Running the engine in the next steps will pump the fluid out of the torque converter. Make sure your fittings are tight and have Teflon tape on them. As soon as you see air shut off the engine.
Clamp the clear tubing over the line that you removed from the transmission. Refill through the dipstick tube with the same amount as you just pumped out. I wanted to see the hot side temperature. Top off the fluid as needed. This is for a 1998 Ford F-150 4.
Note that Ford does not recommend ever changing the filter. With added cooling and added fluid, what is there to lose? This will change some fluid that would otherwise be trapped in the valve body, accumulators, and clutches. Granted this may not be a problem. I change the filter along with the oil change. Install the sending unit for the temp gauge into the housing if you got the appropriate kit. It is held in place by the pan. From reading on various forums it seemed like a great idea.
Some say use the return line as the temperature will be proof that the coolers are doing their job. Fill the filter up with fluid and install the filter on the mount. The easiest place for me was on the main battery fuse cover. . .
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