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Trans trouble on the road???? [message #315382] Mon, 03 April 2017 08:16 Go to next message
midlf is currently offline  midlf   United States
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Registered: July 2007
Location: SE Wisc. (Palmyra)
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Senior Member
We are in Alamogordo NM. Did the Trinity site visit on Saturday.

Having "some" concerns about the transmission. (I.E. near panic) I have been having to add way too much trans fluid. This started when I was checking fluid levels after hitting the hay bale. I don't believe the hay had anything to do with it. That was just the first time I noticed it.

I've had to add 4 quarts over the last 700 miles. Not good. Based on RayE's experience I think the trans is toast but will keep running if I stay ahead of the fluid loss. It appears the loss is out the trans vent based on the oil slick under the left side of the coach and on the left side of the toad. Trans is vented out a hose to the left side of the coach. It does not appear to be coming out the fill tube.

I'll be trying to figure out our next course of action. Right now I'm leaning towards stocking up on trans fluid and making a run for home. Alamogordo NM to Palmyra Wi. Route investigations will include which is the flattest route, which is the route most likely to provide support (black list or service providers), or other factors this group may come up with. Home is about 1400 miles away. I will also be calling Manny later today.

Damn, I hate it when a plan comes undone.

Damn again. I just checked. San Diego is only 800 miles from here! Maybe I should head for Manny's? It's closer than home.

Any thoughts from the collective will be appreciated. Input will help get my brain out of panic mode and into rational thought.

(Humm, buy a semi and Landol? Nah that's just panic thinking. <GRIN>)


Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
Re: Trans trouble on the road???? [message #315383 is a reply to message #315382] Mon, 03 April 2017 08:27 Go to previous messageGo to next message
tphipps is currently offline  tphipps   United States
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Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
Senior Member
Ouch! My vote is Manny.
Call first for advice.
Tom,


2012 Phoenix Cruiser model 2552 KA4CSG
Re: [GMCnet] Trans trouble on the road???? [message #315387 is a reply to message #315382] Mon, 03 April 2017 08:40 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
I hate to be the bearer of bad tidings, but: Alamogordo to SAN JOSE is
1172 miles. :-(

Ken H.


On Mon, Apr 3, 2017 at 9:16 AM, Steve Southworth
wrote:

> We are in Alamogordo NM. Did the Trinity site visit on Saturday.
>
> Having "some" concerns about the transmission. (I.E. near panic) I have
> been having to add way too much trans fluid. This started when I was
> checking fluid levels after hitting the hay bale. I don't believe the hay
> had anything to do with it. That was just the first time I noticed it.
>
> I've had to add 4 quarts over the last 700 miles. Not good. Based on
> RayE's experience I think the trans is toast but will keep running if I stay
> ahead of the fluid loss. It appears the loss is out the trans vent based
> on the oil slick under the left side of the coach and on the left side of
> the toad. Trans is vented out a hose to the left side of the coach. It
> does not appear to be coming out the fill tube.
>
> I'll be trying to figure out our next course of action. Right now I'm
> leaning towards stocking up on trans fluid and making a run for home.
> Alamogordo NM to Palmyra Wi. Route investigations will include which is
> the flattest route, which is the route most likely to provide support (black
> list or service providers), or other factors this group may come up with.
> Home is about 1400 miles away. I will also be calling Manny later today.
>
> Damn, I hate it when a plan comes undone.
>
> Damn again. I just checked. San Diego is only 800 miles from here!
> Maybe I should head for Manny's? It's closer than home.
>
> Any thoughts from the collective will be appreciated. Input will help get
> my brain out of panic mode and into rational thought.
>
> (Humm, buy a semi and Landol? Nah that's just panic thinking. )
> --
> Steve Southworth
> 1974 Glacier TZE064V100150 (for workin on)
> 1975 Transmode TZE365V100394 (parts & spares)
> Palmyra WI
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Trans trouble on the road???? [message #315392 is a reply to message #315387] Mon, 03 April 2017 09:27 Go to previous messageGo to next message
midlf is currently offline  midlf   United States
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
Senior Member
Ken Henderson wrote on Mon, 03 April 2017 08:40
I hate to be the bearer of bad tidings, but: Alamogordo to SAN JOSE is
1172 miles. Sad

Ken H.


Rats. I knew it was San something. Diego vs Jose all about the same to someone from WI. Just a few too many more miles and too many "hills". Back to plan A, head for home somehow. Route to be determined.


Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
Re: [GMCnet] Trans trouble on the road???? [message #315395 is a reply to message #315392] Mon, 03 April 2017 10:00 Go to previous messageGo to next message
midlf is currently offline  midlf   United States
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
Senior Member
midlf wrote on Mon, 03 April 2017 09:27
Ken Henderson wrote on Mon, 03 April 2017 08:40
I hate to be the bearer of bad tidings, but: Alamogordo to SAN JOSE is
1172 miles. Sad

Ken H.


Rats. I knew it was San something. Diego vs Jose all about the same to someone from WI. Just a few too many more miles and too many "hills". Back to plan A, head for home somehow. Route to be determined.


So now I'm back to the basic questions. Of the possible routes back I'm trying to determine flattest route or route with best support, service providers or other considerations?

All thoughts welcome.


Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
Re: Trans trouble on the road???? [message #315396 is a reply to message #315382] Mon, 03 April 2017 10:06 Go to previous messageGo to next message
Matt Colie is currently offline  Matt Colie   United States
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Registered: March 2007
Location: S.E. Michigan
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Senior Member
Steve,

In my trade, this is called "Damage Control".
First, keep her afloat.
Second, get or keep the lights on.....
Now exhale and try to find the problem.

Were I in your place, I would find a curb of some way to get her high enough to "skinny" (<= that is a joke in my case) underneath to assess the damage. The three things that first to mind are the cooling lines, the pan and the modulator. All of these can possibly be repaired in place. You may have to find some place in striking range that will let you get on a lift and have opur favorite ornamental ship you some parts.

Let us know how it goes....

Matt - Running for the barn today.


Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
Re: [GMCnet] Trans trouble on the road????as [message #315397 is a reply to message #315395] Mon, 03 April 2017 10:03 Go to previous messageGo to next message
Mr ERFisher is currently offline  Mr ERFisher   United States
Messages: 7117
Registered: August 2005
Karma: 2
Senior Member
Ask manny
On Mon, Apr 3, 2017 at 8:01 AM Steve Southworth
wrote:

> midlf wrote on Mon, 03 April 2017 09:27
>> Ken Henderson wrote on Mon, 03 April 2017 08:40
>>> I hate to be the bearer of bad tidings, but: Alamogordo to SAN JOSE is
>>> 1172 miles. :(
>>>
>>> Ken H.
>>
>>
>> Rats. I knew it was San something. Diego vs Jose all about the same to
> someone from WI. Just a few too many more miles and too many "hills".
>> Back to plan A, head for home somehow. Route to be determined.
>
>
> So now I'm back to the basic questions. Of the possible routes back I'm
> trying to determine flattest route or route with best support, service
> providers or other considerations?
>
> All thoughts welcome.
> --
> Steve Southworth
> 1974 Glacier TZE064V100150 (for workin on)
> 1975 Transmode TZE365V100394 (parts & spares)
> Palmyra WI
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
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http://gmcmotorhome.info/APC.html
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Re: [GMCnet] Trans trouble on the road???? [message #315398 is a reply to message #315395] Mon, 03 April 2017 10:04 Go to previous messageGo to next message
jimk is currently offline  jimk   United States
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
Senior Member








Call me if you think we can analyze and plan a wayI'm on the road408-639-0737


Get Outlook for iOS






On Mon, Apr 3, 2017 at 8:00 AM -0700, "Steve Southworth" wrote:










midlf wrote on Mon, 03 April 2017 09:27
> Ken Henderson wrote on Mon, 03 April 2017 08:40
>> I hate to be the bearer of bad tidings, but: Alamogordo to SAN JOSE is
>> 1172 miles. :(
>>
>> Ken H.
>
>
> Rats. I knew it was San something. Diego vs Jose all about the same to someone from WI. Just a few too many more miles and too many "hills".
> Back to plan A, head for home somehow. Route to be determined.


So now I'm back to the basic questions. Of the possible routes back I'm trying to determine flattest route or route with best support, service
providers or other considerations?

All thoughts welcome.
--
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI

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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
Re: [GMCnet] Trans trouble on the road???? [message #315399 is a reply to message #315392] Mon, 03 April 2017 10:08 Go to previous messageGo to next message
emerystora is currently offline  emerystora   United States
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Registered: January 2004
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Senior Member
Steve

Is it really worth the risk of breaking down on the road and waiting for a tow to an unknown transmission shop.
I think that you would be better off trying to find a good shop in the Phoenix area and having the transmission rebuilt there.

Manny would probably agree to speak with the shop about recommended parts and procedures.

Emery Stora
77 Kingsley
Frederick, CO
> On Apr 3, 2017, at 8:27 AM, Steve Southworth wrote:
>
> Ken Henderson wrote on Mon, 03 April 2017 08:40
>> I hate to be the bearer of bad tidings, but: Alamogordo to SAN JOSE is
>> 1172 miles. :(
>>
>> Ken H.
>
>
> Rats. I knew it was San something. Diego vs Jose all about the same to someone from WI. Just a few too many more miles and too many "hills". Back
> to plan A, head for home somehow. Route to be determined.
> --
> Steve Southworth
> 1974 Glacier TZE064V100150 (for workin on)
> 1975 Transmode TZE365V100394 (parts & spares)
> Palmyra WI
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org


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Re: [GMCnet] Trans trouble on the road???? [message #315400 is a reply to message #315398] Mon, 03 April 2017 10:10 Go to previous messageGo to next message
jimk is currently offline  jimk   United States
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
Senior Member
I think the there is a link as to the hay bail.
Always best to discuss and share so we can figure out.

On Mon, Apr 3, 2017 at 8:04 AM, Jim Kanomata wrote:

> Call me if you think we can analyze and plan a way
> I'm on the road
> 408-639-0737
>
> Get Outlook for iOS
>
>
>
> On Mon, Apr 3, 2017 at 8:00 AM -0700, "Steve Southworth" midlf@centurytel.net> wrote:
>
> midlf wrote on Mon, 03 April 2017 09:27
>>> Ken Henderson wrote on Mon, 03 April 2017 08:40
>>>> I hate to be the bearer of bad tidings, but: Alamogordo to SAN JOSE is
>>>> 1172 miles. :(
>>>>
>>>> Ken H.
>>>
>>>
>>> Rats. I knew it was San something. Diego vs Jose all about the same to someone from WI. Just a few too many more miles and too many "hills".
>>> Back to plan A, head for home somehow. Route to be determined.
>>
>>
>> So now I'm back to the basic questions. Of the possible routes back I'm trying to determine flattest route or route with best support, service
>> providers or other considerations?
>>
>> All thoughts welcome.
>> --
>> Steve Southworth
>> 1974 Glacier TZE064V100150 (for workin on)
>> 1975 Transmode TZE365V100394 (parts & spares)
>> Palmyra WI
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>>


--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
Re: [GMCnet] Trans trouble on the road???? [message #315402 is a reply to message #315400] Mon, 03 April 2017 10:26 Go to previous messageGo to next message
Nelson is currently offline  Nelson   United States
Messages: 120
Registered: August 2014
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Senior Member
Dipstick may be giving you a false reading and as a result you are overfilling the tranny. Other than losing the fluid is the training operating properly?

Sent from my iPhone
Nelson Wright

Orlando Fl.

> On Apr 3, 2017, at 11:10 AM, Jim Kanomata wrote:
>
> I think the there is a link as to the hay bail.
> Always best to discuss and share so we can figure out.
>
>> On Mon, Apr 3, 2017 at 8:04 AM, Jim Kanomata wrote:
>>
>> Call me if you think we can analyze and plan a way
>> I'm on the road
>> 408-639-0737
>>
>> Get Outlook for iOS
>>
>>
>>
>> On Mon, Apr 3, 2017 at 8:00 AM -0700, "Steve Southworth" > midlf@centurytel.net> wrote:
>>
>> midlf wrote on Mon, 03 April 2017 09:27
>>>> Ken Henderson wrote on Mon, 03 April 2017 08:40
>>>> > I hate to be the bearer of bad tidings, but: Alamogordo to SAN JOSE is
>>>> > 1172 miles. :(
>>>> >
>>>> > Ken H.
>>>>
>>>>
>>>> Rats. I knew it was San something. Diego vs Jose all about the same to someone from WI. Just a few too many more miles and too many "hills".
>>>> Back to plan A, head for home somehow. Route to be determined.
>>>
>>>
>>> So now I'm back to the basic questions. Of the possible routes back I'm trying to determine flattest route or route with best support, service
>>> providers or other considerations?
>>>
>>> All thoughts welcome.
>>> --
>>> Steve Southworth
>>> 1974 Glacier TZE064V100150 (for workin on)
>>> 1975 Transmode TZE365V100394 (parts & spares)
>>> Palmyra WI
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>>>
>
>
> --
> Jim Kanomata
> Applied/GMC, Fremont,CA
> jimk@appliedairfilters.com
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

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Re: [GMCnet] Trans trouble on the road???? [message #315404 is a reply to message #315392] Mon, 03 April 2017 10:32 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Steve,

According to Google maps it 1448 miles to Palmyra vs 1206 to Manny's. If you
take I-10 to I-8 to I-5 I reckon it's pretty flat / gentle grades.

Someone from the west coast cold confirm that.

Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Steve
Southworth
Sent: Monday, April 3, 2017 9:27 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Trans trouble on the road????

Ken Henderson wrote on Mon, 03 April 2017 08:40
> I hate to be the bearer of bad tidings, but: Alamogordo to SAN JOSE is
> 1172 miles. :(
>
> Ken H.


Rats. I knew it was San something. Diego vs Jose all about the same to
someone from WI. Just a few too many more miles and too many "hills". Back
to plan A, head for home somehow. Route to be determined.
--
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI

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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
Re: [GMCnet] Trans trouble on the road???? [message #315408 is a reply to message #315396] Mon, 03 April 2017 10:53 Go to previous messageGo to next message
k2gkk is currently offline  k2gkk   United States
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Senior Member
I whole heartedly agree! Call Jim K who may even still be fairly close to you on his way home from the Shawnee rally/convention.


Everyone should have Jim's shop AND cellphone numbers in their cellphone address books!


~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ Since 30 November '53 ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ Member GMCMI and Classics ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~~ k2gkk + hotmail dot com ~~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
|[ ]~~~[][ ][]\
"--OO--[]---O-"




________________________________
From: Gmclist on behalf of Matt Colie
Sent: Monday, April 3, 2017 10:06
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Trans trouble on the road????

Steve,

In my trade, this is called "Damage Control".
First, keep her afloat.
Second, get or keep the lights on.....
Now exhale and try to find the problem.

Were I in your place, I would find a curb of some way to get her high enough to "skinny" (
Re: Trans trouble on the road???? [message #315412 is a reply to message #315382] Mon, 03 April 2017 12:30 Go to previous messageGo to next message
jhb1 is currently offline  jhb1   Canada
Messages: 303
Registered: February 2004
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Senior Member
Try for Hal Kading in Las Cruces much closer

John H. Bell
77 Royale; QuadBag,Manny OneTon,Honda EV4010, FITech
Montreal Qc.
Re: Trans trouble on the road???? [message #315414 is a reply to message #315382] Mon, 03 April 2017 13:11 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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Registered: January 2004
Location: Hebron, Indiana
Karma: 10
Senior Member
Here are some quick thoughts.

1. You can change a transmission on the road in a few hours if it becomes necessary. So the real problem, if it fails completely, would be getting a rebuilt / replacement trans to your location.

2. You need to figure out if hitting the hay bale caused your problem.

3. Are you sure that you are not over filling the trans and blowing the excess fluid out the vent?

I moved a coach once from the west coast to Michigan. It was taking a quart of trans fluid every 300 miles or so to keep the level correct on the trans dipstick. This coach had a remote (up front) trans dip stick. I finally found a curb in an abandoned store parking lot and pulled the right front tire over the curb for additional clearance underneath. I started the engine to let the torque converter fill up and then shut off. I immediately pulled the modulator (one bolt and one hose) to see the trans fluid level. The level should be to the bottom of the hole in the trans where the modulator goes.

Well, the trans had 2 to 3 EXTRA quarts in it and I now had fluid all over the place on the ground. The big problem now was re-installing the modulator without having to lay in the excess fluid all over the ground.

End result was after the modulator was re-installed (and the fluid was now at the correct level) that you could not find any fluid on the dipstick. So the dipstick was not calibrated / installed correctly. I drove it that way for 2000 miles without it blowing out any more fluid. I believe the owner later got rid of that remote dipstick.

4. What are the condition of the trans oil cooler lines after you hit the hay bale?


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: Trans trouble on the road???? [message #315418 is a reply to message #315414] Mon, 03 April 2017 15:44 Go to previous messageGo to next message
A Hamilto is currently offline  A Hamilto   United States
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Senior Member
Ken Burton wrote on Mon, 03 April 2017 13:11
...4. What are the condition of the trans oil cooler lines after you hit the hay bale?
Yep. Maybe its not coming out of the overflow after all...
Re: Trans trouble on the road???? Decision made [message #315420 is a reply to message #315382] Mon, 03 April 2017 16:41 Go to previous messageGo to next message
midlf is currently offline  midlf   United States
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
Senior Member
Talked to Manny and based on what we discussed I will be able to make it home OK if I keep the fluid level up. Consumption and observed leak locations will determine the next course of action when I get home.

Some background - this trans is a Manny with 15k miles on it. Installed at the same time as a Paterson engine and AL rad.


These are some of the factors I've considered based on very good input from the posts here, PM's and emails.

First - Trans cooling lines are all intact, undisturbed and dry. Mine run over the top of the trans and down the right side to the AL rad.

Second - although I have not been able to get under the coach, from the side the trans pan has only the "normal" amount of oily on it and it leaves no puddles under the trans pan when parked. Also no leakage apparent from the trans in the area of the modulator. Modulator shifting function is working correctly. In general trans appears to be running just as it should.

Three - there has been oil drips on the pavement from the far LH side of the trans crossmember. This is the area where my trans vent hose ends. Right now the hose just ends inside the trans cross member on the far LH side. I will pull this out and have it drain into a container. This should also remove doubt about Venturi suction on the trans vent line. I will also throughly clean the fill tube end after checking level to confirm (hopefully) there is no leakage there.

Four - we decided to head back as planned along old Rt 66. The only part we will miss from our original plans is Albuquerque so that is not a big deal as we have been there before. We have mapped the flattest route from Alamogordo to I-40. If we experience a catastrophic failure on the old Route 66 route there should be adequate support available.

Five - Trans dipstick is original to coach. If anything it is inclined to give me a reading resulting in too low a fill. The metal cap above the rubber seal tends to ride up to the loop on the dipstick. The stakes in the dip stick to secure this cap in place are worn. When checking frans fluid level it is necessary to make sure the cap is located properly on the dip stick. The lower stakes under the lowest washer are Intact. For now I am ruling out overfill but will keep it carefully in mind.

I have some concerns, that with this being the first time for long mountian climbs, that I may have been leaving it in D too long and not pulling down into Super when I should. I don't floor it off the line from stops so that could not have caused any damage in the TQ area.

Again tanks to all for the suggestions and offers of help.



Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
Re: Trans trouble on the road???? [message #315422 is a reply to message #315382] Mon, 03 April 2017 17:39 Go to previous messageGo to next message
JohnL455 is currently offline  JohnL455   United States
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Karma: 12
Senior Member
Is the modulator letting the dexron into the engine? If trans is shifting fine I would say it is sound and you should try to determine the fluid issue. Why not pull the modulator and scribe the stick to that spill over level. Simple job. Then start and top off to new mark now the guessing game is over and you can drive and monitor level. First I would put a very small hose clamp above the hat to stop that issue. If you keep an eye on it and it actually gets low you should feel the moment it slips pull over and add dexron

John Lebetski
Woodstock, IL
77 Eleganza II
Re: [GMCnet] Trans trouble on the road???? [message #315423 is a reply to message #315422] Mon, 03 April 2017 17:43 Go to previous messageGo to next message
James Hupy is currently offline  James Hupy   United States
Messages: 6806
Registered: May 2010
Karma: -62
Senior Member
Steve, listen to Manny. Head for home on old 66. Watch the level, and keep
a fire bottle handy.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On Apr 3, 2017 3:40 PM, "John R. Lebetski" wrote:

> Is the modulator letting the dexron into the engine? If trans is shifting
> fine I would say it is sound and you should try to determine the fluid
> issue. Why not pull the modulator and scribe the stick to that spill over
> level. Simple job. Then start and top off to new mark now the guessing game
> is over and you can drive and monitor level. First I would put a very
> small hose clamp above the hat to stop that issue. If you keep an eye on it
> and
> it actually gets low you should feel the moment it slips pull over and add
> dexron
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
>
>
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> GMCnet mailing list
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Re: Trans trouble on the road???? [message #315427 is a reply to message #315382] Mon, 03 April 2017 19:57 Go to previous messageGo to previous message
kerry pinkerton is currently offline  kerry pinkerton   United States
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
Senior Member
Steve, I feel your concern. I lost a year old Manny tranny because I let the fluid get low because the dipstick O-ring was cut and, because I was parked over gravel, I didn't see the leak. Fluid low, gravitated, foamed, and burned the high gear clutch pack.

I switched over to a front dipstick that I can check from under the hood since part of the problem is getting to the dipstick. I'm sure you'll be checking it frequently.

I see you've already decided to do what I was going to suggest, put the overflow into a plastic bottle. Hang it around the crossmember with cable ties. This will do two things, keep the tranny fluid off the exhaust system, and prove one way or the other if fluid is coming out the overflow.


Kerry Pinkerton - North Alabama Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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