Home » Public Forums » GMCnet » Transmission Odessy
| Transmission Odessy [message #275629] |
Sat, 11 April 2015 09:20  |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
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Senior Member |
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Ever just shoot yourself in the foot...not once but twice?
I've been struggling with a transmission that has been running about 40-50* warmer than what has been normal. On an 80* day the trans temp would run about 180-190*. Normally under the same circumstances trans temp was closer to 130-140* This is my first run following a fluid and filter change. With the discussion on this forum, I've been assuming that the problem was probably the trans filter with a slightly undersize feed tube allowing air to infiltrate the system. Two days ago when I found excess fluid in the overflow bottle, I decided to check the fluid level. WOW...it appeared to be about 2-3 quarts high with some air bubbles also on the stick. So, somehow when I changed the fluid, I put to much fluid in the trans. Don't know how I could have done that, cuz I ran and checked the fluid multiple times during the refill, then took it for a ride and checked it....but I did....
POW...the first shot...I seems somehow the fluid level reached the rotating assembly and the contact introduced air bubbles into the fluid, raising the volume even more. So now I am charged with the task of removing some of the fluid (I figure about 1 ½ qt) without making a mess on the parking pad in Natchez State Park. I found a catch container (cheap Styrofoam cooler lined with several black plastic bags), raised the coach enough to get the catch under the trans, pulled the vacuum modulator out and drained about 2 qts. Son of a gun...No runs, NO drips, no mess!! Put the modulator back in and checked the fluid level. Now about a pint down (cold). So I figure, tomorrow I'll run it for a while on our way to the next stop and check it hot. Next morning I pull into the dump station, dump and pull out onto the entrance road and hook up the car. Start the coach and ...POW...the second shot...no drive. Shut it off, step outside to find about a gallon of fluid on the road. Apparently, when I put the modulator back in, the forked plate that holds it in, did not catch the flair on the modulator. Pressure of putting it in drive the 3rd time popped the modulator out, and there it was hanging from the vacuum line.
So, now I can't move the coach and there is a gallon of fluid where I have to lay to get the modulator back in the trans. We soaked up as much fluid as we could before I got to the modulator to reinstall it, Anyone out there experience rolling around under the coach in trans fluid? Even with cardboard as a barrier between me and the fluid on the road, I ended up with my right side and back soaked with trans fluid.
Oh...BTW...Yesterday we made it to the next stop and the trans is back to normal temps with fluid level at about 1/2 pint low. Life is .....better.... ☺
Larry 
78 Royale w/500 Caddy
Menomonie, WI.
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| Re: Transmission Odessy [message #275632 is a reply to message #275629] |
Sat, 11 April 2015 09:36  |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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Senior Member |
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Larry wrote on Sat, 11 April 2015 09:20Ever just shoot yourself in the foot...not once but twice?...
Yes. Frequently...sometimes trice...
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: Transmission Odessy [message #275633 is a reply to message #275629] |
Sat, 11 April 2015 10:37 |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
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Senior Member |
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Larry wrote on Sat, 11 April 2015 07:20Ever just shoot yourself in the foot...not once but twice?
Oh...BTW...Yesterday we made it to the next stop and the trans is back to normal temps with fluid level at about 1/2 pint low. Life is .....better.... ☺
Larry, glad it is working. This could have been so much worse. Don't feel bad. Filling, in my small bit of experience, is a guess and the seat of your pants. Who knows how much is in the torque converter and hiding other places.
Can you say a word or two about you transmission overflow bottle? My tube just dumps outside the frame rail and if and when it does, it is messy. A picture would be really great.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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| Re: [GMCnet] Transmission Odessy [message #275639 is a reply to message #275633] |
Sat, 11 April 2015 11:47 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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George,
Larry's probably in no mood to crawl back under there to get you a picture
of the bottle, so here's mine:
http://www.gmcmhphotos.com/photos/odds-27n-27-ends/p28429-a-small-pill-bottle-makes-a-nice-transmission-overflow-tank.html
I'd have preferred a clear bottle, but the amber one is what I had -- fluid
can still be seen.
Larry,
Welcome to the Overfill Club. During the past couple of trips, my
transmission fluid temperature was climbing to 200*F-210*F after a few
hours of 60mph. My assumption was like yours, despite no fluid in the
catch bottle: too much ATF. So, after warming the transmission a little,
I pulled the modulator (on the rack with a catch barrel, NOT rolling around
in the muck) and drained about a quart of ATF. I haven't driven it yet,
but I expect the problem to be solved.
Ken H.
On Sat, Apr 11, 2015 at 11:37 AM, George Beckman wrote:
> Larry wrote on Sat, 11 April 2015 07:20
>> Ever just shoot yourself in the foot...not once but twice?
>>
>>
>> Oh...BTW...Yesterday we made it to the next stop and the trans is back
> to normal temps with fluid level at about 1/2 pint low. Life is
>> .....better.... ☺
>
>
> Larry, glad it is working. This could have been so much worse. Don't feel
> bad. Filling, in my small bit of experience, is a guess and the seat of your
> pants. Who knows how much is in the torque converter and hiding other
> places.
>
> Can you say a word or two about you transmission overflow bottle? My tube
> just dumps outside the frame rail and if and when it does, it is messy. A
> picture would be really great.
> --
> '74 Eleganza, SE, Howell + EBL
> Best Wishes,
> George
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Transmission Odessy [message #275647 is a reply to message #275629] |
Sat, 11 April 2015 16:43 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Larry,
Sorry to read your trials and tribulations, however, thanks for sharing your tale of woe as it will make me, for one, VERY careful when I service the transmission!
Only thing I would have done differently is go to an auto parts store and bought a bag of speedy dry and spread it under the transmission to soak up the fluid.
BTW for the most part speedy dry is fullers earth, it is also used as cat litter so if you can't find an auto parts store try a grocery store.
HOWEVER, the speedy dry sold in auto parts stores is ground finer and will soak up the spilled fluid better. I found that out when I knocked over a 5 gallon can of diesel fuel I was using to pre clean parts before I put them in my parts washer. ☺
Regards,
Rob M.
-----Original Message-----
From: Larry
Ever just shoot yourself in the foot...not once but twice?
I've been struggling with a transmission that has been running about 40-50* warmer than what has been normal. On an 80* day the trans temp would run about 180-190*. Normally under the same circumstances trans temp was closer to 130-140* This is my first run following a fluid and filter change. With the discussion on this forum, I've been assuming that the problem was probably the trans filter with a slightly undersize feed tube allowing air to infiltrate the system. Two days ago when I found excess fluid in the overflow bottle, I decided to check the fluid level. WOW...it appeared to be about 2-3 quarts high with some air bubbles also on the stick. So, somehow when I changed the fluid, I put to much fluid in the trans. Don't know how I could have done that, cuz I ran and checked the fluid multiple times during the refill, then took it for a ride and checked it....but I did....
POW...the first shot...I seems somehow the fluid level reached the rotating assembly and the contact introduced air bubbles into the fluid, raising the volume even more. So now I am charged with the task of removing some of the fluid (I figure about 1 ½ qt) without making a mess on the parking pad in Natchez State Park. I found a catch container (cheap Styrofoam cooler lined with several black plastic bags), raised the coach enough to get the catch under the trans, pulled the vacuum modulator out and drained about 2 qts. Son of a gun...No runs, NO drips, no mess!! Put the modulator back in and checked the fluid level. Now about a pint down (cold). So I figure, tomorrow I'll run it for a while on our way to the next stop and check it hot. Next morning I pull into the dump station, dump and pull out onto the entrance road and hook up the car. Start the coach and ...POW...the second shot...no drive. Shut it off, step outside to find about a gallon of fluid on the road. Apparently, when I put the modulator back in, the forked plate that holds it in, did not catch the flair on the modulator. Pressure of putting it in drive the 3rd time popped the modulator
out, and there it was hanging from the vacuum line.
So, now I can't move the coach and there is a gallon of fluid where I have to lay to get the modulator back in the trans. We soaked up as much fluid as we could before I got to the modulator to reinstall it, Anyone out there experience rolling around under the coach in trans fluid? Even with cardboard as a barrier between me and the fluid on the road, I ended up with my right side and back soaked with trans fluid.
Oh...BTW...Yesterday we made it to the next stop and the trans is back to normal temps with fluid level at about 1/2 pint low. Life is .....better....
☺
--
Larry
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: Transmission Odessy [message #275650 is a reply to message #275629] |
Sat, 11 April 2015 17:17 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Look at the money you saved by not paying for a bogus trans flush. And it's quite a conditioner on the back of your head.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: Transmission Odessy [message #275677 is a reply to message #275633] |
Sun, 12 April 2015 07:36 |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
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Senior Member |
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George Beckman wrote on Sat, 11 April 2015 10:37Larry wrote on Sat, 11 April 2015 07:20Ever just shoot yourself in the foot...not once but twice?
Oh...BTW...Yesterday we made it to the next stop and the trans is back to normal temps with fluid level at about 1/2 pint low. Life is .....better.... ☺
Larry, glad it is working. This could have been so much worse. Don't feel bad. Filling, in my small bit of experience, is a guess and the seat of your pants. Who knows how much is in the torque converter and hiding other places.
Can you say a word or two about you transmission overflow bottle? My tube just dumps outside the frame rail and if and when it does, it is messy. A picture would be really great.
George,
I'll try to get a pic sometime today. All it is...is a 4 oz clear plastic bottle with a hold drilled in the cap slightly smaller than the OD of the hose (for a tight fit). The bottle is zip tied to the outside of the frame rail so just getting down on my knees can do a quick look. HTH.
BTW...could you read the "Fans" thread and comment on how ken can use the EBL and Tuner Pro to control and electric fan....please... thx.
Larry
78 Royale w/500 Caddy
Menomonie, WI.
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