Wet Harness Connector - TCCoA Forums
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post #1 of 8 (permalink) Old 07-14-2019, 04:05 PM Thread Starter
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Wet Harness Connector

I have recently experienced what I think are serious transmission issues. First there was a disengaging and re-engaging OD at highway speeds. Shortly after that I had no auto shift into 2nd but a manual 2nd shift was successful. Going into 3rd after that was mostly unsuccessful; it would stay for a few seconds and then lose it. I have a Ford shop manual and figured I might be able to check some sensors and connectors to do what I could before I took it to a shop. I figured the EPC would be a good place to start and so I finally managed to find the transmission harness connector, the 9 pin connector, and disconnect it. On doing so, I noticed the connector was dripping wet with transmission fluid. How big of a mess am I in?

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post #2 of 8 (permalink) Old 07-14-2019, 07:06 PM
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The harness on my Cougars auto was full of transmission fluid as well. It was in perfect working order so I don't think it was causing any issues. The old 4r70w was pretty much a big grease ball when I took it out... lol I don't understand where all the oil came from because it wasn't dripping any oil on my garage floor.

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post #3 of 8 (permalink) Old 07-14-2019, 09:29 PM
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I think your direct clutch pack is toasted. Hows your fluid look ? Nice and dark ? Suspended particles ? Smells burnt ?

You're in for a full rebuild so don't bother with the EPC / harness diagnostics ( no check engine light = no electrical component failure )

Ill let somebody else chime in with their .02
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post #4 of 8 (permalink) Old 07-15-2019, 05:03 AM
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Yeah, the losing 3rd/no 4th thing is the direct clutch losing pressure.

The shaft seals are toast, and all the rubber is hard and worn out.

If you can do it yourself, a kit is pretty cheap.

Otherwise, you'll need someone to rebuild it.

Check out this thread for what's involved:

https://www.explorerforum.com/forums...-diary.128800/

Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
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Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.


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post #5 of 8 (permalink) Old 07-15-2019, 10:39 AM
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To add to Grog6 - I found this series of videos on YouTube MOST informational on a 4R70W rebuild.

https://youtu.be/X6WZE_z9bKQ

Plus, if you do it, or get a local shop to do it, check out the info from Jerry in the tech articles here (hard to find; current admin doesn't have a link to them that I've found) ... https://www.tccoa.com/articles/trann...on/index.shtml

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post #6 of 8 (permalink) Old 07-18-2019, 10:47 PM Thread Starter
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Well that's somewhat good to hear; means I don't need to agonize and mutter to myself on the garage floor for hours for nothing. I kind of figured I would need a rebuild. Fluid is turning brown, has about 28-30K on it. I would be in over my head to try and fix anything transmission related, I think. From what I've heard there is a pretty good shop not too far from me but there are several hills and about 15 miles to get there. Another local shop and an AAMCO are also near me. Thanks for the help.

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Last edited by raider82; 07-18-2019 at 10:48 PM. Reason: I needed to say thank you.
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post #7 of 8 (permalink) Old 07-19-2019, 04:41 AM
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Quote:
Originally Posted by raider82 View Post
From what I've heard there is a pretty good shop not too far from me but there are several hills and about 15 miles to get there. Another local shop and an AAMCO are also near me.
I'd get the car towed to the good shop you mentioned, too many horror stories out there about AAMCO.

Joe
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post #8 of 8 (permalink) Old 07-21-2019, 12:27 PM
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Originally Posted by Rodeo Joe View Post
I'd get the car towed to the good shop you mentioned, too many horror stories out there about AAMCO.

Joe
+1 on this.

Not just here, but other forums I'm on as well. AAMCO is not the place to go.

If you have AAA or know someone who does, get it towed to the transmission shop.

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