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#1 |
Registered User
Join Date: May 2013
Location: Central NC
Posts: 830
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Trans fluid on my feet...
My wife drove my truck today, when she got home she parked a bit close to my sons car so I went to move it over a bit and found trans fluid dripping from under the dash.
I assume its from the speedo cable, but why? How do I stop it? Its a 700r4 and the original speedo cable. Thanks! P.S. I tried the search but apparently cant find the right search words to get the answer.
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1972 Cheyene C-10 "Ole Green" My Grandfathers truck (early 70's to 1983) My first vehicle (1983) Original 350 (3 rebuilds) 700R4 from Bowtie Overdrives ![]() |
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#2 |
Registered User
![]() Join Date: May 2012
Location: Anton, Texas
Posts: 2,364
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Re: Trans fluid on my feet...
your speedo cable may be in backwards ...have you done any work on it lately . could also be from a vacuum line under the dash from a bad modulator valve leaking into the vacuum line . most of the time the motor will start smoking .
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#3 |
Registered User
Join Date: May 2013
Location: Central NC
Posts: 830
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Re: Trans fluid on my feet...
Last speedo cable work was 11 years ago...and then it was not taken off, just unhooked from the Saginaw and attached to the 700r4.
The only vacuum lines on the truck that I know of are on the charcoal canister and the distributor. Is there a seal in the speedo cable that somehow could have worn out over the last 42 years?
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1972 Cheyene C-10 "Ole Green" My Grandfathers truck (early 70's to 1983) My first vehicle (1983) Original 350 (3 rebuilds) 700R4 from Bowtie Overdrives ![]() |
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#4 |
Registered User
![]() Join Date: May 2012
Location: Anton, Texas
Posts: 2,364
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Re: Trans fluid on my feet...
yes I would look at the speedo cable its self at the trans, it should be a little wet there also. take it loose and see if it drips from that area. it could climb the cable .
I am not sure if the 700r4 was a vacuum shift , the th350 and 400 were. |
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#5 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: Trans fluid on my feet...
Sounds like oil rather than trans fluid. The oil pressure line on the back of the instrument cluster is most likely.
You're not gonna get ATF traveling all the way up the cable and into the cab.
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I'm on the Instagram- @Gearhead_Kevin |
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#6 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Yes, I doubt very seriously you would get ATF that far up the speedo. It would be more likely the oil gauge line on the right bottom side of cluster leaking.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#7 |
Registered User
Join Date: May 2013
Location: Central NC
Posts: 830
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Re: Trans fluid on my feet...
I will check the oil line.
When I wiped the liquid off the floor mat it was red on the paper towel, the drips were on the floor right under the parking brake pedal. My oil pressure gage is on the right side of the cluster. Didn't have time to climb under the dash to see for sure but will today. Thanks for the replies.
__________________
1972 Cheyene C-10 "Ole Green" My Grandfathers truck (early 70's to 1983) My first vehicle (1983) Original 350 (3 rebuilds) 700R4 from Bowtie Overdrives ![]() |
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#8 |
Senior Member
![]() Join Date: Apr 2008
Location: Franklinton NC
Posts: 1,309
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Re: Trans fluid on my feet...
If it is trans fluid pull the speedo cable off the adapter in the trans. If you find fluid pull the adapter out of the transmission and take it apart.( I believe it just has a c clip holding the shaft in) There is one or two o rings that seal the shaft to the housing and have probably gone bad. Just replace them and you should beegood to go.
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#9 |
Registered User
Join Date: May 2013
Location: Central NC
Posts: 830
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Re: Trans fluid on my feet...
Well....I figured out what it was.
Apparently one of my kids left a candy cane on the dash. With the fluctuating temps lately coupled with my not driving the truck much due to salt on the road, there was enough condensation to melt the candy cane. So it was melted candy cane dripping down through the dash to the floor. After only 30 minutes or so, I had it all cleaned up.
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1972 Cheyene C-10 "Ole Green" My Grandfathers truck (early 70's to 1983) My first vehicle (1983) Original 350 (3 rebuilds) 700R4 from Bowtie Overdrives ![]() |
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#10 |
72 GMC
Join Date: Feb 2008
Location: Wells, Maine
Posts: 534
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Re: Trans fluid on my feet...
thats pretty funny
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KEL Members I have met : 2014.02.01: bruceman1968, Mr Handy, colgad, RenoKeene, CaptRMW |
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#11 |
Registered User
Join Date: Feb 2012
Location: Mission Viejo, CA
Posts: 1,856
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Re: Trans fluid on my feet...
thats why you are supposed to taste any spills to see what they are
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#12 |
Proprietor of Dale's Corner
![]() Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,126
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Re: Trans fluid on my feet...
That's a sticky situation.....glad it was nothing serious....
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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#13 |
Registered User
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
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Re: Trans fluid on my feet...
It might be one of the kids left a candy cane on the dash and it melted to the floor, check that out... Ohh, I'm sorry, I posted too late, you already figured it out...
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Thanks, Joe.. 1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB. |
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#14 |
Registered User
Join Date: Jun 2013
Location: West Virginia
Posts: 6,421
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Re: Trans fluid on my feet...
But wouldn't some candy residue be left inside the dash? THAT'S HOW WE GET ANTS LAUNA! (Any "Archer" fans here?)
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#15 |
Registered User
Join Date: Oct 2012
Location: Green Valley Arizona
Posts: 1,351
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Re: Trans fluid on my feet...
Your thread tittle would make a good country n western song title. But the melting candy is funny.
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1970 C10 Short Stepper with 71/72 front clip. |
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#16 |
Registered User
Join Date: May 2013
Location: Central NC
Posts: 830
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Re: Trans fluid on my feet...
On the paper towel it was amazing how much it looked like ATF, I am pretty glad it was candy and not some kind of leak.
I did sniff it the other day when I found it, but this time of year my alergies throw my smeller off, guess I shoukd have tasted it.
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1972 Cheyene C-10 "Ole Green" My Grandfathers truck (early 70's to 1983) My first vehicle (1983) Original 350 (3 rebuilds) 700R4 from Bowtie Overdrives ![]() |
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