depending where the leak is, yes! to get the air out of the lines and not have a spongy pedal
No, as long as your pedal seemed good before the brake job, and you do not loosen the bleeder at all, you do not have to bleed the brakes.
If you replace any brake component that breaks the brake fluid seal or you let it get very low of brake fluid, yes, you must bleed the brakes.
you dont you bleed and adjust the brakes
To bleed brakes on your 2008 Uplander front and rear, disconnect the brake line at the caliper.
Does this Blazer have four wheel disc Brakes? NEW ANSWER: There's no reason to bleed brakes if you did not open the system.( where brake fluid came out )
YES!
How to bless a wet brake system
All brake hoses and calipers must be intact and hooked up to bleed any brakes. You cannot do it with hoses removed.
The type of vehicle is not important, but if brake pressure is failing, you need to bleed ALL the brakes.
The brake pedal has nothing to do with it. If air is in the system then bleed the brakes.
bleed your brakes there might be air in the lines or the brake booster is bad try to bleed all 4 brake 1st
How to fix brake will not bleed out