Answer
Jul 16, 2024 - 05:51 AM
Hi there,
Based on the details you have mentioned about your Isuzu Rodeo's brakes, here are potential sources of the problem:
1. ABS issues. Since the ABS light had been ON for four years, there may be underlying problems with the ABS control module that randomly affect the brakes. The ABS could be mistakenly modulating the brakes or causing pressure loss. Diagnosing the ABS using a scan tool is best to extract trouble codes that would point to the issue on the ABS.
2. Air in the brake lines. Trapped air inside brake lines and caused inconsistent brake pressure. Bleeding the brakes to remove excess air can resolve the issue.
3. Defective/faulty Brake master cylinder. A bad part will cause intermittent brake problems. The master cylinder is responsible for generating hydraulic pressure for the brake system. If going bad, it will lead to a loss of brake pressure especially if going downhill.
4. Brake booster issues. A bad brake booster will cause a loss of braking power. The brake booster helps multiply the force applied to the brake pedal, you may need to pump the brakes to get them to engage properly.
5. Brake caliper problems. Even if the calipers were recently replaced, there could still be an issue with them or their installation. Sticking or improperly installed calipers can cause inconsistent braking.
I hope this helps! It is still best to have your vehicle diagnosed by a trustworthy local auto repair shop with veteran professional mechanics with updated equipment to address the issues in your vehicle accurately and efficiently.
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