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05-19-2008, 08:07 PM
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#1
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Member
Join Date: May 2008
Location: san bruno ,ca
Posts: 46
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I just over heated my engine climbing a hill
pulled over and saw the trans fluid boiling in the res. I was thinking of changing collant , trans fluid and eng oil. Any help would be appreciated.
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1999 WINNEBAGO ADVENTURER 34V
CUMMINS ISB 5.9 275 hp
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05-19-2008, 08:07 PM
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#2
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Member
Join Date: May 2008
Location: san bruno ,ca
Posts: 46
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I just over heated my engine climbing a hill
pulled over and saw the trans fluid boiling in the res. I was thinking of changing collant , trans fluid and eng oil. Any help would be appreciated.
__________________
1999 WINNEBAGO ADVENTURER 34V
CUMMINS ISB 5.9 275 hp
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05-19-2008, 08:11 PM
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#3
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Member
Join Date: May 2008
Location: san bruno ,ca
Posts: 46
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Its a 1999 winnebago adventurer 34v diesel
allison mt 643 4 spd
was also woundering if any one knows the capacity of oil , trans fluid, and coolant
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1999 WINNEBAGO ADVENTURER 34V
CUMMINS ISB 5.9 275 hp
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05-20-2008, 07:15 AM
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#4
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Community Moderator
Fleetwood Owners Club Freightliner Owners Club Florida Cooters Club
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 9,581
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You have a visible transmission fluid reservoir? Wow! My MH3000 just has a fill tube and no reservoir I can see.
At any rate, if the tranny got that hot then yes, changing the fluid is a good idea. especially if it was not synthetic (Transynd or equivalent). Synthetics hold up to heat better than "dino" fluids.
As for an oil change,I don't know but better safe than sorry, I guess.
I don't think a coolant change is indicated, though. I know of nothing in the coolant that would be affected by heat.
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Gary Brinck
2004 American Tradition; 2007 GMC Acadia
Homebase in the Ocala Nat'l Forest near Ocala, FL
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05-20-2008, 08:22 AM
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#5
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Senior Member
Commercial Member
Join Date: Oct 2006
Location: Rochester NY
Posts: 1,825
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Changing the tranny oil to Transynd is a good recommendation, but this transmission still requires annual transmission oil changes (check with Allison). I had this transmission in my prior coach, and I stuck to Dexron III and changed it annually due to the cost of the synthetic.
I would also recommend you clean the rear radiator and charge air cooler. Probably the source of the overheating.
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Don Pophal - Caledonia RV Center - Rochester, NY
'07 Winnebago Journey 34H - CAT C7, Koni's, MCU's, SS Bell Crank
'07 HHR Toad, SMI AFO, Blue OX
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05-20-2008, 03:03 PM
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#6
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Member
Join Date: May 2008
Location: san bruno ,ca
Posts: 46
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Right on the money Don I got under there today and my trans cooler was pluged with dirt I off road a lot
I still am unshure is dex III still avalable
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1999 WINNEBAGO ADVENTURER 34V
CUMMINS ISB 5.9 275 hp
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05-20-2008, 05:08 PM
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#7
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Community Moderator
Fleetwood Owners Club Freightliner Owners Club Florida Cooters Club
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 9,581
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Later spec versions of Dexron are still compatible with Dexron III.
__________________
Gary Brinck
2004 American Tradition; 2007 GMC Acadia
Homebase in the Ocala Nat'l Forest near Ocala, FL
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05-26-2008, 03:27 PM
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#8
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Senior Member
Commercial Member
Join Date: Oct 2006
Location: Rochester NY
Posts: 1,825
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Caution regarding later versions of Dexron being compatible with Dexron III. Some are not.
You can still get ATF which is Dexron III compatible. Just make sure it is!
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Don Pophal - Caledonia RV Center - Rochester, NY
'07 Winnebago Journey 34H - CAT C7, Koni's, MCU's, SS Bell Crank
'07 HHR Toad, SMI AFO, Blue OX
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05-26-2008, 05:10 PM
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#9
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Community Moderator
Fleetwood Owners Club Freightliner Owners Club Florida Cooters Club
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 9,581
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Caution regarding later versions of Dexron being compatible with Dexron III. Some are not. </div></BLOCKQUOTE>
Can you give an example???
There is only one GM-defined Dexron spec that supersedes Dexron 3 and that is Dexron VI. Dexron VI is GM-certified for use in all older GM transmissions that require Dexron II or Dexron III.
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Gary Brinck
2004 American Tradition; 2007 GMC Acadia
Homebase in the Ocala Nat'l Forest near Ocala, FL
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05-27-2008, 06:40 AM
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#10
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Senior Member
Commercial Member
Join Date: Oct 2006
Location: Rochester NY
Posts: 1,825
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Pulling from memory, I heard there was a Dexron IV product, which was not backwards compatible with Dex III.
I have not verified this.
__________________
Don Pophal - Caledonia RV Center - Rochester, NY
'07 Winnebago Journey 34H - CAT C7, Koni's, MCU's, SS Bell Crank
'07 HHR Toad, SMI AFO, Blue OX
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05-27-2008, 11:08 AM
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#11
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Member
Join Date: May 2008
Location: san bruno ,ca
Posts: 46
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the allison dealer told me to use what ever was in there he said dex IV was semi syn
I used dex/mer seems to work
__________________
1999 WINNEBAGO ADVENTURER 34V
CUMMINS ISB 5.9 275 hp
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05-28-2008, 07:26 AM
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#12
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Community Moderator
Fleetwood Owners Club Freightliner Owners Club Florida Cooters Club
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 9,581
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There is no GM specification called Dexron IV - they skipped directly from Dexron III to Dexron VI (6) and VI is back-compatible for older GM transmissions that required Dexron II or III. However, Dexron III spec ATF is still available from many non-GM suppliers, so you may as well stick with that.
__________________
Gary Brinck
2004 American Tradition; 2007 GMC Acadia
Homebase in the Ocala Nat'l Forest near Ocala, FL
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10-06-2011, 01:26 PM
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#13
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Member
Join Date: May 2008
Location: san bruno ,ca
Posts: 46
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Is mercon v the same as dex III
__________________
1999 WINNEBAGO ADVENTURER 34V
CUMMINS ISB 5.9 275 hp
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