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04-08-2020, 02:12 AM
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#15
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Registered User
Join Date: Aug 2016
Location: Seattle,WA/HB,CA./Fujieda-Japan
Posts: 849
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Have a look at the electrical connector underneath on the side of the trans.
See red trans fluid?
You shouldn't. If you do you'll have to drop the pan and replace the wiring harness. It's a known issue on the 4L80E trans. They'll crack on the inside allowing trans fluid into the connector shorting out circuit/s.
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04-08-2020, 06:33 PM
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#16
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Junior Member
Join Date: Aug 2019
Posts: 26
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My OD was kicking out after about 10 minutes of driving and the it would also stall at stops... ended up having to have the trans rebuilt.
__________________
2001 Itasca Suncruiser 32v
{chassis; 2000 P32, 454, 4L80E, Wide Track}
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04-09-2020, 12:43 AM
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#17
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Registered User
Join Date: Aug 2016
Location: Seattle,WA/HB,CA./Fujieda-Japan
Posts: 849
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Quote:
Originally Posted by Migizi
My OD was kicking out after about 10 minutes of driving and the it would also stall at stops... ended up having to have the trans rebuilt.
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Do you remember the code/s the computer threw?
A rebuild on a 4L80E with 5X, XXX milrs seems very questionable to me. They are very stout transmissions.
Some other things that can cause the described issue are.
1. TPS sensor
2. VSS sensor (front or rear)
3. Misadjusted cruise control arm.
4. Force actuator valve
5. DRAC module
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04-09-2020, 03:54 AM
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#18
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Junior Member
Join Date: Aug 2019
Posts: 26
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Quote:
Originally Posted by udidwht
Do you remember the code/s the computer threw?
A rebuild on a 4L80E with 5X, XXX milrs seems very questionable to me. They are very stout transmissions.
Some other things that can cause the described issue are.
1. TPS sensor
2. VSS sensor (front or rear)
3. Misadjusted cruise control arm.
4. Force actuator valve
5. DRAC module
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My transmission had 125,xxx and I have no idea what the codes were
__________________
2001 Itasca Suncruiser 32v
{chassis; 2000 P32, 454, 4L80E, Wide Track}
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05-22-2022, 05:24 AM
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#19
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Senior Member
Join Date: Apr 2022
Location: Renton-Highlands,Wa./HB,Ca./Fujieda-Japan
Posts: 832
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Quote:
Originally Posted by leobadger
Driving down highway shifting from drive to overdrive heard a bang and lost that gear was able to gethome in 3 gear at 3200 rpm instead of 1900 rpm
Any ideal of what happen because transmission works great except no over drive
Thank you
Jean
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No way your running 1900 rpms (in OD) with the 4L80E and that RV. More like 2500-2700rpms. It isn't a pick up truck. LOL!
__________________
1994 Southwind Storm 28ft - 454TBI w/4L80E
VIN#1GBJP37N4R3314754
Flight System G-Man 360 generator man (PM me)
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05-23-2022, 02:51 AM
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#20
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Member
Join Date: Aug 2019
Posts: 41
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Quote:
Originally Posted by udid
Do you remember the code/s the computer threw?
A rebuild on a 4L80E with 5X, XXX milrs seems very questionable to me. They are very stout transmissions.
Some other things that can cause the described issue are.
1. TPS sensor
2. VSS sensor (front or rear)
3. Misadjusted cruise control arm.
4. Force actuator valve
5. DRAC module
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On my case no code at all
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05-23-2022, 02:52 AM
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#21
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Member
Join Date: Aug 2019
Posts: 41
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Quote:
Originally Posted by 1972VWbus
No way your running 1900 rpms (in OD) with the 4L80E and that RV. More like 2500-2700rpms. It isn't a pick up truck. LOL!
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Not touching 2000 rpm.
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05-26-2022, 07:41 AM
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#22
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Senior Member
Join Date: Aug 2017
Posts: 2,104
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I had a similar problem on my 93 . If I reset the codes , the tranny would work good for a few minutes, then shift out of overdrive and would not shift past 3rd gear after that. It turned out to be a defective speed sensor on the tranny , easily accessible from the outside . Mine had 2 , the later ones used only 1. There was a list of codes, none which pointed to the speed sensors.
__________________
1993 Tiffin Allegro Bay 32'
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05-30-2022, 08:32 PM
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#23
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Senior Member
Join Date: Apr 2022
Location: Renton-Highlands,Wa./HB,Ca./Fujieda-Japan
Posts: 832
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Quote:
Originally Posted by leobadger
Not touching 2000 rpm.
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What RV make/model?
In a car and/or pick 1900rpm perhaps but a 25 foot plus RV? No way in hell will you cruise at highway speed at 1900rpms. You don't have an Allison trans.
__________________
1994 Southwind Storm 28ft - 454TBI w/4L80E
VIN#1GBJP37N4R3314754
Flight System G-Man 360 generator man (PM me)
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06-12-2022, 01:38 AM
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#24
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Senior Member
Join Date: Oct 2019
Location: Around Europe!
Posts: 179
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Quote:
Originally Posted by 1972VWbus
What RV make/model?
In a car and/or pick 1900rpm perhaps but a 25 foot plus RV? No way in hell will you cruise at highway speed at 1900rpms. You don't have an Allison trans.
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Same here. 55 m/ h with 1900. Same tranny. 33 ft.
__________________
2001 Condor R-Vision 1320 l Volkswagen T3 Westfalia
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06-12-2022, 04:08 AM
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#25
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Senior Member
Join Date: Apr 2022
Location: Renton-Highlands,Wa./HB,Ca./Fujieda-Japan
Posts: 832
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Quote:
Originally Posted by Ruediger
Same here. 55 m/ h with 1900. Same tranny. 33 ft.
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Something up with your tach. My 28 foot 454 w/4L80E has always run roughly 2500-2800 rpm @60mph. Always...as in since bought new. Now with 71,XXX miles on it.
__________________
1994 Southwind Storm 28ft - 454TBI w/4L80E
VIN#1GBJP37N4R3314754
Flight System G-Man 360 generator man (PM me)
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06-12-2022, 07:41 AM
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#26
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Senior Member
Join Date: Aug 2017
Posts: 2,104
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Quote:
Originally Posted by 1972VWbus
Something up with your tach. My 28 foot 454 w/4L80E has always run roughly 2500-2800 rpm @60mph. Always...as in since bought new. Now with 71,XXX miles on it.
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My 32 ft 93 with a 4L80E runs about 2000 rpm @ 60 mph. It will run 2500 - 2800 in 3rd gear @ 60 mph.
__________________
1993 Tiffin Allegro Bay 32'
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06-17-2022, 05:06 AM
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#27
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Senior Member
Join Date: Oct 2019
Location: Around Europe!
Posts: 179
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Quote:
Originally Posted by Soppy
My 32 ft 93 with a 4L80E runs about 2000 rpm @ 60 mph. It will run 2500 - 2800 in 3rd gear @ 60 mph.
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Samw with mine. I usually drive not faster then 55 m/ h. And wont pass then 2100 rpm. Quiet like a diesel i assume.
__________________
2001 Condor R-Vision 1320 l Volkswagen T3 Westfalia
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06-17-2022, 02:07 PM
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#28
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Senior Member
Join Date: Apr 2022
Location: Renton-Highlands,Wa./HB,Ca./Fujieda-Japan
Posts: 832
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Always thought it was an oxymoron with these big rigs and 4 speed (3 w/OD). With a slight grade, tow and/or headwind into 3rd you go. It's always been my belief that even when not towing you're towing in this era rig (454 w/4L80E).
__________________
1994 Southwind Storm 28ft - 454TBI w/4L80E
VIN#1GBJP37N4R3314754
Flight System G-Man 360 generator man (PM me)
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