GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » Transmission Odessy
Transmission Odessy [message #275629] Sat, 11 April 2015 09:20 Go to previous message
Larry is currently offline  Larry   United States
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma:
Senior Member
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 Smile
78 Royale w/500 Caddy
Menomonie, WI.
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: jasper macerator number
Next Topic: [GMCnet] GMC for sale
Goto Forum:
  


Current Time: Sun Nov 17 01:52:30 CST 2024

Total time taken to generate the page: 0.01188 seconds