During normal operation its about 150 and the return line around 50 psi.
Allison transmission cooler line pressure.
Based on quick research it seems that 30 50 psi should be the maximum pressure typically seen in the transmission oil cooler lines.
Dhd 100 558 hardcore hooker duramax transmission cooler line set late allison 5 speed 0 reviews.
2003 2005 allison 5 speed transmissions.
64 5 5 inspecting controls.
65 section vi installing transmission into vehicle.
5 4 cooler filter and lines.
I m very interested in an improved transmission cooler for my 2013 chevrolet silverado hd2500 lml duramax truck i am running a 200hp tune that bumps the torque to over 1000 ft lb and am also running a tcm tune that increases the line pressure in the transmission to provide firmer shifts and less slip in the clutch packs at the cost of higher temps my truck s transmission temp runs.
Ud trucks offers allison fully automatic transmissions with new quon 8x4 8 0 litre engine for added vocational appeal.
The following charts provide the mainline pressure readings for all of the various tci transmission models.
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These readings can be obtained by attaching a 300 psi fluid pressue gauge to the appropriate pressure port on the transmission and running the engine at 2000 rpm.
Inch series threads breather feedthrough harness connector.
The fleece fpe tl lb7 lly allison transmission cooler lines fix the old leaky transmission lines in your 01 05 gm 6 6l duramax lb7 and lly.
These heavy duty high flow flexible transmission lines are just what you need for trouble free performance from your allison transmission.
The transmission coolers themselves are only tested to a max pressure of 150 200 psi.
If you are going to use rubber lines be sure to use barbed fittings so the hose does not blow off.
And as far as running the 2 lines together bypassing the cooler will cause.
Hot transmission fluid blowing out and getting on a really hot exhaust manifold will cause instant fires.
There is at idle between 20 50 psi.
In very cold temps the to cooler line can see full line pressure upwards of 250 psi.
Transmission line pressure specifications.
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But during use pressures in transmission lines can reach 100 psi or more.
