Front Disc Brakes (Most likely):
The front disc brakes on a 1998 E-350 are generally self-adjusting. You usually don't need to manually adjust them. However, if you've recently replaced brake pads or calipers, you *might* need to use the caliper piston compressor tool to push the piston back in. This isn't an adjustment, but a necessary step to allow the new pads to fit. Always consult your repair manual for the specific procedure for your E-350's brake system. If the brakes feel spongy or ineffective after a pad replacement, bleeding the brake lines is likely the solution, not adjusting the pads.
Rear Drum Brakes (Most likely):
Rear drum brakes on this vehicle are *usually* adjusted using a star wheel mechanism inside the drum. This is a more involved process and requires the following steps:
1. Safety First: Engage the parking brake, chock the wheels, and disconnect the battery's negative terminal.
2. Remove Wheel: Remove the wheel and tire assembly.
3. Access the Adjustment: Locate the star wheel adjuster. This is usually a small, notched wheel that's accessible through a hole in the backplate of the brake drum. You might need a long, thin screwdriver or a special star wheel adjuster tool.
4. Adjusting the Star Wheel: Turn the star wheel clockwise to tighten the brake shoes against the drum. Turn it slowly and cautiously. You'll feel resistance as you tighten it.
5. Check for Clearance: Once adjusted, carefully spin the drum by hand. It should spin freely, but with slight resistance. If it's too tight, back off the star wheel slightly. If it's too loose, tighten it further. A small amount of drag is normal.
6. Reassemble: Replace the brake drum, wheel, and tire. Repeat for the other rear wheel.
7. Test the Brakes: Carefully test the brakes in a safe, controlled environment. If the pedal feels spongy or the brakes grab, you may need to readjust or bleed the brakes.
Important Notes:
* Repair Manual: A repair manual specific to your 1998 Ford E-350 is crucial. It will have detailed diagrams and instructions tailored to your vehicle's exact brake system.
* Bleeding the Brakes: After any brake work, you should bleed the brake lines to remove any air bubbles that may have entered the system.
* Professional Help: If you're uncomfortable working on brakes, take your vehicle to a qualified mechanic. Brakes are a critical safety system, and improper repair can have serious consequences.
* Brake Components: If brake parts are worn or damaged, replacing them is necessary before any adjustment. Adjusting worn out brakes won't solve the problem and might make things worse.
This information is for general guidance only. Always consult your vehicle's repair manual for specific procedures and safety precautions. Incorrect adjustment can result in brake failure and serious injury.
