H3 4L60E ATF pressure?

Hi there,
Anybody knows what supposed to be a pressure before ATF cooler?
Thanks)

Val said:

Hi there,
Anybody knows what supposed to be a pressure before ATF cooler?
Thanks)

Click to expand...

A lot! Seriously; when I installed my BTO 700R4 in my '89 K1500 the acceptance procedure was testing the line pressure at the ports on the DS side of the trans. The line pressure is in the range of 115 to 130 PSI, IIRC

Above 90 for sure!

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amrg said:

Above 90 for sure!

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Click to expand...

Thanks for info Man!

Mr_Rich said:

A lot! Seriously; when I installed my BTO 700R4 in my '89 K1500 the acceptance procedure was testing the line pressure at the ports on the DS side of the trans. The line pressure is in the range of 115 to 130 PSI, IIRC

Click to expand...

Thanks for info Guys!!!

The reason why I was asking this info, because I had recently encountered my expternal trans cooler leaking.

Thus, just installed another cooler and checked atf pressure before cooler with below results as follows:

- standstil P,D,N = 1.75 bar
- standstil R = 2 bar
- driving 90 km/h = 6-7 bar
- driving 120/140 km/h = 8-9 bar (sometimes pressure goes up to 10 bar)

Bearing in mind recently gathered info, the trans atf pressure could be upto 12 bar. Thus, all looks fine with my Tractor))

Thanks for info again :thumbs: