2003 Z71 Tahoe. 51,000 miles. I'm sure it was the original fluid.
I'd planned to bleed the brakes, change the transfer case oil and check the front and rear differential oil today but only got around to bleeding the brakes.
ALL of the bleeder screws were seized. I used PB blast and felt like I was going to break them off. My right rear was 10mm, left rear 3/8ths, left front 5/8ths and right front was 5/8's as well (if I can remember right). I was rounding them off with my open ended wrenches because they were only grabbing 2 parts of the bleeder so had to crank them open with a socket while my brother pumped the brakes. I had a bleeder vac tool that I had planned to use but the wrenches were not allowing me the ability to open the bleeder and close it. I've had motorcycles and some pontiacs that were a breeze to bleed.
I guess what I'm getting at is was there a possibility that air got into the system? The pedal feel is no different than it was before, just clean fluid through the lines. My main worry is that air will work itself up into the ABS module and screw it up? I believe there is an OBD type tool that plugs in to the port to purge the system and I should probably get that done? I also know I need new bleeder valves all around. Is there a specific size and style that are preferred or you've had luck with? I've done this a dozen times without a single issue on my other vehicles through the years and now feel like I screwed this one up pretty good.
I'd planned to bleed the brakes, change the transfer case oil and check the front and rear differential oil today but only got around to bleeding the brakes.
ALL of the bleeder screws were seized. I used PB blast and felt like I was going to break them off. My right rear was 10mm, left rear 3/8ths, left front 5/8ths and right front was 5/8's as well (if I can remember right). I was rounding them off with my open ended wrenches because they were only grabbing 2 parts of the bleeder so had to crank them open with a socket while my brother pumped the brakes. I had a bleeder vac tool that I had planned to use but the wrenches were not allowing me the ability to open the bleeder and close it. I've had motorcycles and some pontiacs that were a breeze to bleed.
I guess what I'm getting at is was there a possibility that air got into the system? The pedal feel is no different than it was before, just clean fluid through the lines. My main worry is that air will work itself up into the ABS module and screw it up? I believe there is an OBD type tool that plugs in to the port to purge the system and I should probably get that done? I also know I need new bleeder valves all around. Is there a specific size and style that are preferred or you've had luck with? I've done this a dozen times without a single issue on my other vehicles through the years and now feel like I screwed this one up pretty good.
