If you're having problems with your brakes or power steering, you need to specify the *exact* issue you're experiencing. For example:
* Brake problems: Are the brakes spongy, hard to press, pulling to one side, or not working at all?
* Power steering problems: Is the steering difficult to turn, making groaning or whining noises, or leaking fluid?
Once you describe the problem, I can give you more specific advice on troubleshooting and potential repairs. This might involve checking brake fluid levels, inspecting brake lines and components, checking power steering fluid, or looking for leaks. Do not attempt any repairs if you are not mechanically inclined or familiar with automotive systems. It's best to take your van to a qualified mechanic for diagnosis and repair.