busterbrown
Member
- Joined
- Jul 19, 2015
- Posts
- 45
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So, I've been hard a work on my 2008 Yukon XL Denali getting it into tip top shape.
I've changed out all the fluids including the front and rear differentials, transfer case, transmission fluid, motor oil, brake fluid, and power steering fluid.
In regards to my transmission fluid change out, I used the flush method that other's have mentioned in different threads. Worked great. In fact, I didn't need the trans cooler radiator fitting that many people have use. I simply disconnected the trans cooler line to the radiator and manually held the 3/8 inch clear tubing in place while my wife turned the ignition on and off (2 quarts flushed at a time).
I attempted to remove the exhaust pipes from the manifolds but to no avail. They were seized on even after blasting them with loads of penatrating oil. So this is what I did. After I siphoned out the trans fluid via the dipstip, I removed all the trans pans bolts and dropped the pan as far as I could. There was about 1.5 quarts of fluid remaining which I pumped out manually with a small Harbor Freight fluid pump.
Then I was able to reach in the pan (with my hand) and remove the magnet blindly. I removed the trans pan gasket first then was able to drop the filter with about 5 inches of clearance. Twisting the filter in several directions allow for it to clear the pan. I then extensively sprayed the pan with brake cleaner and wiped it thorough. Thanks to modern camera phones, I was able to see the pan after I cleaned it. I replace the filter then the gasket. I reinstalled all the bolts to the pan and torqued them appropriately.
I proceeded with the flush at the radiator. After exactly 14 quarts, the trans fluid immediately turned bright red and I knew I had finished the exchanged.
So, if you're tackling this job at home while your truck is up on stands, it is very doable; it's just a little crowded under the vehicle. In 50,000 miles, I'll just exchange at the radiator with a 5 gallon bucket.
I've changed out all the fluids including the front and rear differentials, transfer case, transmission fluid, motor oil, brake fluid, and power steering fluid.
In regards to my transmission fluid change out, I used the flush method that other's have mentioned in different threads. Worked great. In fact, I didn't need the trans cooler radiator fitting that many people have use. I simply disconnected the trans cooler line to the radiator and manually held the 3/8 inch clear tubing in place while my wife turned the ignition on and off (2 quarts flushed at a time).
I attempted to remove the exhaust pipes from the manifolds but to no avail. They were seized on even after blasting them with loads of penatrating oil. So this is what I did. After I siphoned out the trans fluid via the dipstip, I removed all the trans pans bolts and dropped the pan as far as I could. There was about 1.5 quarts of fluid remaining which I pumped out manually with a small Harbor Freight fluid pump.
Then I was able to reach in the pan (with my hand) and remove the magnet blindly. I removed the trans pan gasket first then was able to drop the filter with about 5 inches of clearance. Twisting the filter in several directions allow for it to clear the pan. I then extensively sprayed the pan with brake cleaner and wiped it thorough. Thanks to modern camera phones, I was able to see the pan after I cleaned it. I replace the filter then the gasket. I reinstalled all the bolts to the pan and torqued them appropriately.
I proceeded with the flush at the radiator. After exactly 14 quarts, the trans fluid immediately turned bright red and I knew I had finished the exchanged.
So, if you're tackling this job at home while your truck is up on stands, it is very doable; it's just a little crowded under the vehicle. In 50,000 miles, I'll just exchange at the radiator with a 5 gallon bucket.
