Is there a problem with the hydraulic brake system?

hydraulic fluid leakage and sluggish performance of the brakes. The entire system from the vacuum service to the wheel cylinder or caliper can be easily checked in a rela- tively short period of time by performing these tests. While in many cases a problem can be found and cor- rected early in the testing procedure, it is generally rec-

What kind of brake system does Chevy Suburban have?

I have a 1990 Chevy suburban with the diesel, so it has hydro boost braking system. Anyway I haven’t owned it for very long but shortly after I started driving it every once in awhile the brake pedal would go to the floor. I mean straight to to floor and brakes would not engage.

What are the brake problems on a Hydro Boost?

Thanks for the reply. All hoses from the steel lines to the calipers are new. No hoses from master cylinder to brake lines. Also changed the hoses from the power steering pump to the hydro boost. Has issues of foaming in the reservoir. Turned out to be a return hose was bad.

How do you remove Hydroboost from brake pedal?

Look straight up at the end of the brake pedal and find the metal clip to remove. I use a flathead screwdriver to to pry it over top of the pin, then slide it off. Once that clip is off, you can simultaneously slide the electrical connector and the hydroboost rod off of the brake pedal.