Power Brake Units May Leak Fluid From Hydro-Boost Unit on Cadillac Escalade

Problem Description and Possible Solution

Power brake systems using "hydro-boost" may leak power steering fluid from the hydro-boost unit located behind the brake master cylinder. Replacement of the hydro-boost unit is the common repair to correct this concern.

Problem Data
RepairPal Verified
Average mileage: 170,500 (138,000–195,000)
4 model years affected: 1999, 2000, 2002, 2005
9 people reported this problem
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
Viewing 1 - 5 of 5 comments
Slow leak, then leak is more .....hydro boost needs replacement
Start small leak , and gets worse I fix it by changing the hydro boost , I spend around $ 280 on part and about, 2 hours of work
power steering fluid leaking from Hydroboost
Hydro boost needs replacing, starts out as small leak then gets worse. Power steering fluid pours right out under the car if you don't get the leak fixed and makes a whining sound
The Hydro-Booster is leaking all over the left front wheel well. Started out as a slow leak and now is a large leak.