T5 leaking?

WhiteMamba · October 9th, 2010, 01:11 PM

Where are the common places a T5 can leak.

I see a drop or two when I park of trans fluid BUT it's hard to determine where it is coming from. I just had the dam trans out of the car and it was dry as a bone...GRRRR....

302Army187 · October 9th, 2010, 01:36 PM

if its overfilled it can leak from the little valve on top.

mine use to leak from the rear tail part, where it seals to the main case, but after I swapped out the speedo gear, and re-sealed it, it doesn't leak at all anymore.

check your fluid level, and be sure its not overfilled first.

nolife · October 9th, 2010, 05:35 PM

Speedo gear assembly leaking is a common one and an easy fix. A T5 will also appear to "drip" from just about any oil leak in the engine that runs down and blows all over it like the front or rear seal, oil pan, oil drain plugs, PCV, rear of the lower intake, valve covers etc..
The trans fliud is red and the oil not but when it is blowing around and dirty, you'll only know for sure if you clean everything off and monitor for the source.

WhiteMamba · October 9th, 2010, 06:15 PM

Originally Posted by 302Army187

if its overfilled it can leak from the little valve on top.

mine use to leak from the rear tail part, where it seals to the main case, but after I swapped out the speedo gear, and re-sealed it, it doesn't leak at all anymore.

check your fluid level, and be sure its not overfilled first.

We changed fluid when it was out of the car. I will check to see if everything is tight and not overfilled.

WhiteMamba · October 9th, 2010, 06:16 PM

Originally Posted by nolife

Speedo gear assembly leaking is a common one and an easy fix. A T5 will also appear to "drip" from just about any oil leak in the engine that runs down and blows all over it like the front or rear seal, oil pan, oil drain plugs, PCV, rear of the lower intake, valve covers etc..
The trans fliud is red and the oil not but when it is blowing around and dirty, you'll only know for sure if you clean everything off and monitor for the source.

You are correct! When I had my oil drip from awhile ago it was EVERYWHERE under the car all the way back to the rear end!

ryans88gt · October 9th, 2010, 07:53 PM

shifter, front seal, rear seal, fill plugs, vent, where the tail shaft meets the gear box, and the speedo sensor. Those are about the only places it can leak.

WhiteMamba · October 13th, 2010, 11:23 AM

I finally got under it today and found the allen head that holds the speedo gear in the trans was 3-4 turns out and it was loose enough for me to move a little with my hand...

Could that have caused it?

I get a few drops of fluid only on the drivers side directly off of the trans support...cant tell where the hell it's coming from.

93hatch · October 13th, 2010, 11:31 AM

yep. and all 3 of my t-5s have had a very slow leak at the seal where the driveshaft goes into the tranny

WhiteMamba · October 13th, 2010, 11:40 AM

Originally Posted by 93hatch

yep. and all 3 of my t-5s have had a very slow leak at the seal where the driveshaft goes into the tranny

that seal looks good, we replaced all that jazz when I got the Ford Motorsport Aluminum driveshaft...whatcha know abou that son???

93hatch · October 13th, 2010, 11:41 AM

all mine looked good too, but still leaked a tiny bit

WhiteMamba · October 13th, 2010, 11:44 AM

Originally Posted by 93hatch

all mine looked good too, but still leaked a tiny bit

Did it leave a spot overnight under that part?

ryans88gt · October 13th, 2010, 12:54 PM

A lot of people forget to clean and lube the driveshaft yoke when installing a driveshaft and that typically results in a seal that doesn't seal all that well.

93hatch · October 13th, 2010, 01:20 PM

Originally Posted by WhiteMamba

Did it leave a spot overnight under that part?

na not enough to ever get on the ground. From the speedo cable, yes

NitrousFox5.0 · October 13th, 2010, 06:04 PM

Mine leaks from where the tailshaft meets the driveshaft when im parked on a incline.

WhiteMamba · October 13th, 2010, 11:55 PM

still leaking!!!!

I got a few pics...not sure if they help or not...any thoughts....

WhiteMamba · October 13th, 2010, 11:56 PM

if you can see the black trans support it seems to collecting on there and dripping off that on the drivers side...

302Army187 · October 14th, 2010, 12:25 AM

looks like its coming from the speedo sensor. i think 90% of T5's leak from there man.

WhiteMamba · October 14th, 2010, 11:49 AM

Originally Posted by 302Army187

looks like its coming from the speedo sensor. i think 90% of T5's leak from there man.

everything feels tight in there but it does seem like now that I cleaned everything up and checked again, it is coming from the sensor...

what is the best way to stop that sort of leak?

nolife · October 14th, 2010, 10:10 PM

With a new one of these, they are under $20. You can try to replace just the orings (one for the cable and one on the body of the sensor) but that didn't work for me and I finally just swapped the whole damn thing.

WhiteMamba · October 14th, 2010, 11:12 PM

where did you pick that up at?

October 9th, 2010, 01:11 PM	#1
WhiteMamba Regular 88 Notch Join Date: Aug 2010 Location: Saint Charles IL Posts: 431 iTrader: 0 reviews	T5 leaking? Where are the common places a T5 can leak. I see a drop or two when I park of trans fluid BUT it's hard to determine where it is coming from. I just had the dam trans out of the car and it was dry as a bone...GRRRR.... __________________ 88 Notchy 306 with 70mm Turbo 510 RWHP on 10lbs K thnx Can we chat?

October 9th, 2010, 01:36 PM	#2
302Army187 Hardcore Enthusiast '89 LX 'Vert 10's or bust... Literally. Join Date: May 2009 Location: Denver, Co Posts: 2,915 iTrader: 0 reviews	if its overfilled it can leak from the little valve on top. mine use to leak from the rear tail part, where it seals to the main case, but after I swapped out the speedo gear, and re-sealed it, it doesn't leak at all anymore. check your fluid level, and be sure its not overfilled first. __________________ H/C/I 302 + nitrous for now... supercharger/turbo soon? www.youtube.com/Xarmy187 Please support my YouTube channel! My videos don't disappoint!

October 9th, 2010, 05:35 PM	#3
nolife MM Fanatic 91GT, 88GT, 02GT Join Date: Dec 2006 Posts: 3,057 Blog Entries: 3 iTrader: 0 reviews	Speedo gear assembly leaking is a common one and an easy fix. A T5 will also appear to "drip" from just about any oil leak in the engine that runs down and blows all over it like the front or rear seal, oil pan, oil drain plugs, PCV, rear of the lower intake, valve covers etc.. The trans fliud is red and the oil not but when it is blowing around and dirty, you'll only know for sure if you clean everything off and monitor for the source. __________________ Last edited by nolife; October 9th, 2010 at 05:38 PM.

October 9th, 2010, 07:53 PM	#6
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,737 iTrader: 0 reviews	shifter, front seal, rear seal, fill plugs, vent, where the tail shaft meets the gear box, and the speedo sensor. Those are about the only places it can leak. __________________ 88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it

October 13th, 2010, 11:23 AM	#7
WhiteMamba Regular 88 Notch Join Date: Aug 2010 Location: Saint Charles IL Posts: 431 iTrader: 0 reviews	I finally got under it today and found the allen head that holds the speedo gear in the trans was 3-4 turns out and it was loose enough for me to move a little with my hand... Could that have caused it? I get a few drops of fluid only on the drivers side directly off of the trans support...cant tell where the hell it's coming from. __________________ 88 Notchy 306 with 70mm Turbo 510 RWHP on 10lbs K thnx Can we chat?

October 13th, 2010, 11:31 AM	#8
93hatch Banned 1992 Lx 11.39@119.24 Join Date: Jan 2008 Location: Az Posts: 11,644 iTrader: 0 reviews	yep. and all 3 of my t-5s have had a very slow leak at the seal where the driveshaft goes into the tranny __________________ [QUOTE=93mustank;2577445]We speed tested my right arm for quickness in shifts... So he could design the cam for proper shift recovery.[/QUOTE]

October 13th, 2010, 11:41 AM	#10
93hatch Banned 1992 Lx 11.39@119.24 Join Date: Jan 2008 Location: Az Posts: 11,644 iTrader: 0 reviews	all mine looked good too, but still leaked a tiny bit __________________ [QUOTE=93mustank;2577445]We speed tested my right arm for quickness in shifts... So he could design the cam for proper shift recovery.[/QUOTE]

October 13th, 2010, 12:54 PM	#12
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,737 iTrader: 0 reviews	A lot of people forget to clean and lube the driveshaft yoke when installing a driveshaft and that typically results in a seal that doesn't seal all that well. __________________ 88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it

October 13th, 2010, 06:04 PM	#14
NitrousFox5.0 Newbie 1990 Ford Mustang Lx 5.0 13.1@110 mph traction limited Join Date: Oct 2010 Location: West Palm Beach, Florida Posts: 4 iTrader: 0 reviews	Mine leaks from where the tailshaft meets the driveshaft when im parked on a incline.

October 13th, 2010, 11:55 PM	#15
WhiteMamba Regular 88 Notch Join Date: Aug 2010 Location: Saint Charles IL Posts: 431 iTrader: 0 reviews	still leaking!!!! I got a few pics...not sure if they help or not...any thoughts.... __________________ 88 Notchy 306 with 70mm Turbo 510 RWHP on 10lbs K thnx Can we chat?

October 13th, 2010, 11:56 PM	#16
WhiteMamba Regular 88 Notch Join Date: Aug 2010 Location: Saint Charles IL Posts: 431 iTrader: 0 reviews	if you can see the black trans support it seems to collecting on there and dripping off that on the drivers side... __________________ 88 Notchy 306 with 70mm Turbo 510 RWHP on 10lbs K thnx Can we chat?

October 14th, 2010, 12:25 AM	#17
302Army187 Hardcore Enthusiast '89 LX 'Vert 10's or bust... Literally. Join Date: May 2009 Location: Denver, Co Posts: 2,915 iTrader: 0 reviews	looks like its coming from the speedo sensor. i think 90% of T5's leak from there man. __________________ H/C/I 302 + nitrous for now... supercharger/turbo soon? www.youtube.com/Xarmy187 Please support my YouTube channel! My videos don't disappoint!

October 14th, 2010, 10:10 PM	#19
nolife MM Fanatic 91GT, 88GT, 02GT Join Date: Dec 2006 Posts: 3,057 Blog Entries: 3 iTrader: 0 reviews	With a new one of these, they are under $20. You can try to replace just the orings (one for the cable and one on the body of the sensor) but that didn't work for me and I finally just swapped the whole damn thing. __________________ Last edited by nolife; October 14th, 2010 at 10:17 PM.

October 14th, 2010, 11:12 PM	#20
WhiteMamba Regular 88 Notch Join Date: Aug 2010 Location: Saint Charles IL Posts: 431 iTrader: 0 reviews	where did you pick that up at? __________________ 88 Notchy 306 with 70mm Turbo 510 RWHP on 10lbs K thnx Can we chat?

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