navaidstech Report post Posted October 19, 2017 Hey guys... OK, so I went and replaced two speed sensors in my 07 Edge transmission as it was showing classic symptoms of hard shifting and slipping. All went well, except near the end I noticed the o-ring on the transmission cooler line fitting has disintegrated. (this is the end going to the thermal housing). I called the dealer and they want $185 for the two lines.....I just need a bloody o-ring, which they don't sell separately. Question.... does the o-ring have to be composed of something that is resistant to transmission fluid or can any ruber o-ring do? I was thinking of just buying an o-ring kit, find best fitting one and call it a day. Thoughts? Thanks for any help. Share this post Link to post Share on other sites
PaulSchott Report post Posted October 19, 2017 I'm not sure what size you need but a standard Viton O-ring should do nicely. We use Viton O-rings in all of our products and they are oil resistant and hold up to a wide temp variation. I understand that Ford has to sell you an entire assembly because they do not stock standard hardware for replacement. You may want to try a plumbing supply store and just buy a .25 cent part instead of an $18 O-ring kit but I would insist on Viton. 2 Share this post Link to post Share on other sites
navaidstech Report post Posted October 19, 2017 Thanks for the reply and the suggestion ... the outside diameter of the inlet tube is 0.460". I'll drop by a few places around here to see if I can get something of that size. I would really hate to spend 185 dollars just for the sake of an o-ring but if need be, that would be the avenue to take. Share this post Link to post Share on other sites
IWRBB Report post Posted October 20, 2017 http://www.nbroringkit.com/ 2 Share this post Link to post Share on other sites
enigma-2 Report post Posted October 20, 2017 In addition to IWRBB's suggestion above, here's a SAE o-ring set for $14. https://www.amazon.com/dp/B000OMKIDI/ref=cm_sw_r_cp_apa_fNJ6zbGNPH1JT 2 Share this post Link to post Share on other sites
navaidstech Report post Posted October 21, 2017 Thanks guys... I appreciate the suggestions. Will definitely look into this. Since I'm pressed for time (need the car by Monday), I went with just a regular hardware store type o-ring for the time being. Not sure if it is petroleum friendly but it should hold me over until I get one that definitely is. Switching it out shouldn't take more than an hour. Just for the record, it appears the o-ring size appears to be 7/16" ID, 9/16" OD and 1/16" thickness. By the way, car runs great with the new speed sensors - knock on wood. 2 Share this post Link to post Share on other sites
PaulSchott Report post Posted October 23, 2017 If you have access to a McMaster Carr account you can order 100 pcs for $4 and change. 2 Share this post Link to post Share on other sites
navaidstech Report post Posted October 25, 2017 Thanks.... there is a supplier nearby that sells them for next to nothing as well. 1 Share this post Link to post Share on other sites
Shanej Report post Posted November 11, 2017 Navaidstech. I'm about to do the TSS AND OSS myself. Couple of questions - 1. How long did it take? Understanding you have an o-ring issue 2. What were the biggest concerns/trouble points while removing or installing? Minus the o-ring? Ie handling the solenoid, lining up the manila pin, etc. Looks like a relatively easy job but as as all things in a car, nothing is easy. ? Thanks. Share this post Link to post Share on other sites