Need power steering fluid info

[DmaxMaverick]

Dexron III is as good, or better as any PS fluid. Synthetic Dexron is better (I use/recommend Amsoil Dex III). A thorough flush/fill (very simple) is good periodic practice.

[tominboise]

Sorry - it's a 2006 2500HD with Duramax and Allison. It has 105700 miles on it as of today.....

[Heartbeat Hauler]

Sorry - it's a 2006 2500HD with Duramax and Allison. It has 105700 miles on it as of today.....

If the power steering fluid hasn't been flushed in all those miles, you're do.

Here is how to do it once you decide what fluid you will use. And, once you see how simple it is and that it can be done on a regular basis may help you decide if you want to use the more expensive syn fluid or the conventioanl stuff.

1. Under the hood on the driver's side next to the fire wall up high there is a rubber return line w/ a spring clip holding it on. It's real obvious and the only one there.

2. Remove the clip and hose, then attach a piece of clear 3/8" tubing 6.5ft long onto the fitting using a small hose clamp.

3. Run the other end of hose to a catch pan on the floor.
NOTE: Make sure that you put something on the hose in the catch pan to hold the end of the hose in the pan (I used vise grips to hold it).

4. Start the truck, in park, slowly depress the brake pedal as far as you can and hold it. Then turn your steering wheel clockwise 1/4 turn, back to center, then 1/4 turn counter clockwise then back to center. Slowly release the brake and re-apply and turn steering wheel again.

5. IMPORTANT!! Continue doing the 1/4 wheel turn and depressing brake procedure until you hear the pump make noise (mine took 3 iterations). Stop immediately and turn off truck.

6. Fill the power steering reservoir with fresh power steering fluid (I used NAPA brand which is actually valvoline $12.99 a gallon on sale).

7. Then repeat procedures 4-6 until you see clear fluid going thru the hose.
NOTE: Mine took a little over 3/4 of a gallon of steering fluid. Probably more than I needed, but I wanted to get all of the old stuff out because the old fluid was really BLACK!

8. Once clean fluid is coming out, remove the clear hose and reattach the rubber return line and spring clip. Also, make sure there is enough new fluid left over to refill the power steering pump when you're done.

9. After you refill the reservoir for the final time, start the truck and move the wheel back and forth, then recheck fluid level, add if needed.

All done.