* Brake System Issues:
* Uneven brake pad wear: Worn pads on one side will cause a pull. This is the most common reason. The right-side pads could be significantly more worn than the left.
* Sticking caliper: A caliper piston that doesn't fully retract on the right side will keep the brake pad constantly in contact with the rotor, causing the pull. This can also lead to overheating.
* Seized or binding wheel cylinder (if drum brakes are on the rear): Similar to a sticking caliper, a seized wheel cylinder will cause constant braking on one side.
* Brake line issues: A restricted or damaged brake line on the left side will reduce braking force on that side, causing a pull to the right.
* Master cylinder issues: Though less common, a problem with the master cylinder itself could lead to uneven pressure distribution.
* Proportioning valve problem: The proportioning valve helps balance braking pressure between front and rear. A malfunction can cause pulling.
* Suspension and Steering Issues:
* Bent or damaged parts: Bent control arms, tie rods, or other suspension components can affect wheel alignment and cause pulling under braking. This is more likely to cause pulling during *driving* as well, not just braking.
* Uneven tire pressure: Significantly lower tire pressure on the left side could cause a pull to the right under braking.
* Tire wear: Uneven tire wear can affect handling and braking.
* Other Possibilities (less likely):
* Drivetrain issues: Although less likely to only manifest during braking, a problem with the differential or axles *could* contribute.
What to do:
1. Check brake pad wear: Visually inspect the brake pads on all four wheels. Uneven wear is a strong indicator.
2. Check tire pressure: Ensure all tires are inflated to the manufacturer's recommended pressure.
3. Inspect brake calipers and wheel cylinders: Look for signs of sticking or seizing.
4. Examine brake lines and hoses: Check for damage, leaks, or restrictions.
5. Have a professional inspection: A mechanic can properly diagnose the problem and make the necessary repairs. This is the safest and most reliable approach, especially given the age of the vehicle. They have the tools and experience to accurately pinpoint the issue.
Don't continue driving with this problem. Uneven braking can be dangerous, especially at higher speeds. Get it checked as soon as possible.
