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Re: [GMCnet] My tranny woes [message #265540 is a reply to message #265531] |
Thu, 06 November 2014 08:23 |
powerjon
Messages: 2446 Registered: January 2004
Karma:
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Senior Member |
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All,
Here is the trouble shooting manual for the transmission.
http://www.bdub.net/manuals/THM_425_Trouble_Shooting.pdf
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
> On Nov 6, 2014, at 3:46 AM, Trevor Pordage wrote:
>
> i have just done a quick search on oil pressures for turbo 400 transmissions around 200 psi is what is being stated on the case pressure port and oil
> cooler lines down around 10-50 psi
> so therefore any gauge or switch needs to be mounted in the pressure port I assume the 425 will have similar values
>
>
> Originally Posted by Blown7 View Post
> Like the title says, if I install a pressure gage in the oil cooler line, what should I see for a good pressure in a GM Turbo Hydro 400
> transmission??
>
> When? Idling, in gear? in park?? here's the factory spec:
>
> neutral, brakes applied, 1k rpm: 55-70 psi
> D, idle (idle "set to spec"): 60-85
> D, brakes applied, 1k rpm: 60-90
> Intermediate or lo, brakes
> applied, engine at 1k rpm: 135-160
> R, brakes applied, 1k rpm: 95-150
> D, brakes applied, 1k rpm,
> downshift switch activated: 90-110
>
> this is for the oil pressure gauge mounted on the test port on the driver's side of the case. Hope it helps. *shrug*
>
> http://www.pirate4x4.com/forum/general-4x4-discussion/848892-pressure-th400-oil-cooler-line.html
>
> or this one
>
> http://www.dragstuff.com/forum/viewtopic.php?f=16&t=4869
>
>
>
>
>
> --
> Trevor
> Brisbane Australia
> Siesta Koala 76 Edgemont (old Bobby Moores)
> 71 Cadillac Eldo Convert
> 58 Cadillac Eldorado Brougham Project
>
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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My tranny woes
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Re: My tranny woes
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Re: My tranny woes
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Re: My tranny woes
By: rickmike on Tue, 04 November 2014 19:50
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Re: My tranny woes
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Re: My tranny woes
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Re: [GMCnet] My tranny woes
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Re: [GMCnet] My tranny woes
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Re: [GMCnet] My tranny woes
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Re: [GMCnet] My tranny woes
By: USAussie on Tue, 04 November 2014 01:04
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Re: My tranny woes
By: Larry on Tue, 04 November 2014 08:00
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Re: My tranny woes
By: midlf on Tue, 04 November 2014 09:30
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Re: [GMCnet] My tranny woes
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Re: [GMCnet] My tranny woes
By: WD0AFQ on Tue, 04 November 2014 12:38
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Re: [GMCnet] My tranny woes
By: USAussie on Tue, 04 November 2014 13:10
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Re: My tranny woes
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Re: My tranny woes
By: rickmike on Tue, 04 November 2014 22:42
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Re: My tranny woes
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Re: [GMCnet] My tranny woes
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Re: [GMCnet] My tranny woes
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Re: [GMCnet] My tranny woes
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Re: [GMCnet] My tranny woes
By: USAussie on Thu, 06 November 2014 00:21
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Re: [GMCnet] My tranny woes
By: cadelec on Thu, 06 November 2014 02:46
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Re: [GMCnet] My tranny woes
By: powerjon on Thu, 06 November 2014 08:23
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Re: [GMCnet] My tranny woes
By: USAussie on Thu, 06 November 2014 15:10
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Re: My tranny woes
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Re: [GMCnet] My tranny woes
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Re: My tranny woes
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Re: [GMCnet] My tranny woes
By: USAussie on Tue, 18 November 2014 16:54
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Re: [GMCnet] My tranny woes
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Re: [GMCnet] My tranny woes
By: USAussie on Tue, 18 November 2014 18:50
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Re: My tranny woes
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Re: My tranny woes
By: rickmike on Tue, 18 November 2014 21:51
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Re: My tranny woes
By: rcjordan on Fri, 19 December 2014 20:01
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Re: [GMCnet] My tranny woes
By: sgltrac on Fri, 19 December 2014 20:37
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Re: My tranny woes
By: rcjordan on Fri, 19 December 2014 20:48
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Re: [GMCnet] My tranny woes
By: powerjon on Fri, 19 December 2014 22:55
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Re: My tranny woes
By: rcjordan on Fri, 19 December 2014 23:20
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Re: My tranny woes
By: rcjordan on Tue, 30 December 2014 11:24
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