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Kirby, Looks like Ford Performance now has a kit for the Diff cooler (M-4000-M8S). It includes a wiring harness (they won't sell it alone). I emailed FP and they replied indicating you just need power to pin 2 and ground pin 6. Which I have done and get no response from either of my pumps...

Haha. This sounds like how I do things. Glad to hear it's working.

Did it a few times. It is a pita. With some patience it's workable. Start by making sure all the pins are in their sockets and not too far into the connector. The lock prevents them from backing out. However, without the red piece in, there is nothing to prevent them from going further...

It is some serious work to remove the cover. The main reason I did it, and this is purely speculation, was to avoid potential aeration of the oil. The return line sits slightly lower than the fill. The oil returning will return below the surface and be less likely to aerate. If you use the...

KevDog, As Tank indicated, I used Mouser (See earlier in this thread for a little more; p. 8ish): For C264 LH kick panel, 306-SAITW-A03T-064 JST Automotive Connectors MALE .64 I can mail a few to you if you want to PM me. Thanks, John

Ooops. Looks like you already found it. Welcome to the Tech Pack Diff Temp Club (haha). I don't have pump running yet either. However, having temp was a big help this summer. We did push it prob too much. We'd back off in upper 200's.. Highest we saw was 288F. Fluid change reqd after...

kgschrader, I hope these videos are what you are looking for. [ame=""] [ame=""] Please take a look and get back to me with questions. Hopefully, I can help some. Thanks, John

I believe it is FR3Z-4033-C.

cking, Hack and I are working through some wiring questions. I noticed the PCM Power Relay runs through fuse 85. But there is no F85 in the BJB and the owner's manual says it's not used. Also, the schematic indicates F46 is 5 amp but it is really 20 amp (in BJB and owners' manual). If...

Jim (Tank), Replacing the two harnesses is simply an easy way to get the two required connectors; one for the sensor and one for the pump. It also keeps the setup most like OEM. The end result is the same. The only difference between the tech and track for these harnesses is the wires for...

I had the same dream of keeping OEM colors. I didn't find any stocks. You might be able to special order. I have not idea what that might cost. I used solid colors. I may not remember this exactly but here goes: For 20AWG: Again using the schematic on page 7, circuit VET66 uses GN; I used...

And I used these wraps. This one for most interior areas https://www.amazon.com/gp/product/B00823GUP6/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1 And this one for exterior (ie underneath the car) and potential wear areas...

Tank, I used TXL from WireBarn. I had GXL originally but found the coating to be too thick for crimping (and fitting in C264). I used 20AWG for the four wires from C264 and 16AWG for the two wires from C215. Also, I used a ratcheting crimper from DelCity...

Yes, I just added six wires and twelve terminals. I wrapped wires, ran them along the existing bundles, and zip tied to the existing bundles. Using the schematic on page 7, C264 is shown with four lines passing through it; two going to diff pump and two going to the diff temp sensor. For...

Correct. Engine running, both are hot.

My 2016 Helm shows only the Differential Fluid Pump Relay in the BJB. I verified that relay is in the BJB. The schematic you provided in this thread shows the second relay which powers the Diff pump relay. Based on the fact that there is battery power (14.6V) to both circuits (CBK03 and...

I have finished running all the missing wiring. After I had ordered the connectors, I noticed C264 (LH kick panel) was a TE Connectivity connector. Unfortunately, that's not what I ordered and I didn't see the OEM terminals on their website. Oddly enough the terminals I ordered for C215 (RH)...

Jim, I think as long as the engine is running and the sensor temp is over a certain number the pump should be circulating oil. Even if there is no air flow over the cooler, there will still be some heat transfer from the oil to the cooler to the air. That would be better than pump off. I'm just...

cking There are a couple of reasons I (we?) think it is variable speed; 4 wires + ground (on/off would be two/three), the schematic calls one of the circuits "speed control", and the signal in that circuit is a nice narrow width square wave (at low temp). The relay in the BJB fires with the...

Just ran up to 302F. P188A was not thrown. No new codes. Will close connectors, use back probes to connect pump, and check each pin for voltage/signal at different temps. Tank (Jim), As a quick trial, with only the temp sensor and speed control plugged into the open connector, I first...