2004 4l80e hot trans on hills

tekman741 wrote:
The power steering and brake go thru a hydrolic booster which is on the main pully system. You'll notice that there is no brake booster behind the brake master cyclinder and to help with steering it goes thru a booster same as the brake google it.(2004 k3500 hydrolic booster)=ehow
The brake hydro booster on your vehicle provides additional braking power to help reduce the amount of effort needed on your part to slow down your vehicle. The booster works on hydraulic pressure generated by the power steering pump. When you press on the brake pedal, the booster creates additional force on the braking system. That, along with the hydraulic fluid in the brake lines, creates a tremendous amount of force on the brake calipers and pads.

If that pump starts to over heat then your coolant temp goes up and the first to be effected(explained to me by a mechanic) is your tranny temp. It's been a year since my repair and all is "cool" It's what worked for me Hope I helped?

Read more: http://www.ehow.com/how_5969469_troubleshoot-brake-hydro-booster.html#ixzz2zc0VBBPu

Well, I guess anything is possible....I know I worked the steering so hard backing the trailer into this spot that I sheared the pump shaft clean off, killing both power steering and power brakes. Wasn't bad driving back to pavement but had to be flat-bedded from there.



I have never heard of the PS pump causing the engine to overheat and in turn causing the trans to overheat, but like I said I guess anything is possible...makes me wonder if your mechanic was making it up as he went along....