its very hard for 1 person to do by yourself, the best answer is ask a mechanic at a local garage, they'll show you in 5 minutes for free, or they can do it for 20$-50$,well worth it if something breaks,which always happens on old rusted bleeder valves and lines.let a pro look at it for 5 minutes.
YES!
Replace the brake line, bleed the brake. top up with brake fluid. Done.
Replace and bleed line
replace the brake line and then bleed the brakes
Always best to bleed both sides if you change a brake line. EG: Both front or both rear.
If you have not opened the brake system ie. taken off any lines or lost any fluid, you should not have to bleed a brake system. Brake jobs are best done by experienced technicians.
You can't bleed it any other way, you have to bleed it through the bleeder valve to get all the air out.
replace the line and fill and bleed breaks.
To properly bleed a bicycle hydraulic brake line, follow these steps: Gather the necessary tools and materials, including a bleed kit, brake fluid, and a syringe. Remove the wheel and pads to access the brake caliper. Attach the bleed kit to the brake caliper and open the bleed port. Fill the syringe with brake fluid and slowly push the fluid through the system to remove air bubbles. Repeat the process until all air bubbles are removed and the brake lever feels firm. Close the bleed port and reinstall the wheel and pads. Test the brakes to ensure they are functioning properly.
You have to remove the brake line making sure you have something to catch to fluid that will drain out. Plug to the line to prevent the system from draining completely. Remove/replace the brake line and refill the master cylinder reservoir and bleed the air from the system( if it is the hose at the caliper, you usually only need to bleed that wheel). If the reservoir drained completely you would have to run a ABS/bleed system test using a scan tool. After the air is all bleed out, recheck/top off the reservoir.
To bleed brakes on your 2008 Uplander front and rear, disconnect the brake line at the caliper.
You probably have air in the brake hydraulic line. Bleed the air out of the brake lines.