C0299 Chevrolet Code - Brake Booster Large Vacuum Leak Detected
Quick Answer
The brake booster vacuum sensor measures the vacuum in the brake booster assembly. Common causes include Vacuum leak at the brake booster, Faulty Brake Booster Vacuum Sensor, Brake Booster Vacuum Sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C0299 Chevrolet indicates Brake Booster Large Vacuum Leak Detected.
- Common causes
- Common causes include Vacuum leak at the brake booster, Faulty Brake Booster Vacuum Sensor, Brake Booster Vacuum Sensor harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C0299 Chevrolet Description
What are the Possible Causes of the DTC C0299 Chevrolet?
- Vacuum leak at the brake booster
- Faulty Brake Booster Vacuum Sensor
- Brake Booster Vacuum Sensor harness is open or shorted
- Brake Booster Vacuum Sensor circuit poor electrical connection
- Faulty Electronic Brake Control Module (EBCM)
How to Fix the DTC C0299 Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C0299 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Chevrolet Models
- C0299 2014 Chevrolet Silverado — Brake Booster Large Vacuum Leak Detected
- C0299 2015 Chevrolet Silverado — Brake Booster Large Vacuum Leak Detected
- C0299 2016 Chevrolet Silverado — Brake Booster Large Vacuum Leak Detected
- C0299 2017 Chevrolet Silverado — Brake Booster Large Vacuum Leak Detected
- C0299 2018 Chevrolet Silverado — Brake Booster Large Vacuum Leak Detected
Frequently Asked Questions about C0299 Chevrolet Code
1. What are the common symptoms of OBDII code C0299 in a Chevrolet related to a brake booster large vacuum leak detected?
- Common symptoms include a hissing noise coming from the brake pedal area, a spongy brake pedal feel, and reduced braking performance.
2. What are the possible causes of a brake booster large vacuum leak in a Chevrolet triggering the C0299 code?
- The most common causes include a cracked or damaged brake booster diaphragm, a loose or disconnected vacuum hose, or a faulty check valve.
3. How can I diagnose a brake booster large vacuum leak triggering the C0299 code in my Chevrolet?
- You can use a smoke machine to detect vacuum leaks, visually inspect the vacuum hoses and connections, and perform a brake pedal pushrod test to check for brake booster diaphragm integrity.
4. Can driving with OBDII code C0299 in a Chevrolet be dangerous?
- Driving with a brake booster large vacuum leak can be dangerous as it may lead to reduced braking power and potential brake failure. It is recommended to address the issue promptly.
5. What are some repair tips for fixing the brake booster large vacuum leak triggering the C0299 code in a Chevrolet?
- Repair tips include replacing the brake booster assembly if the diaphragm is damaged, securing or replacing any loose or disconnected vacuum hoses, and checking and replacing the check valve if faulty.
6. Is it possible to clear the C0299 code in a Chevrolet without fixing the brake booster vacuum leak issue?
- Clearing the code without addressing the underlying issue may temporarily turn off the check engine light, but the problem will persist, potentially leading to safety hazards and the code reappearing.
7. Can a DIY enthusiast with basic automotive knowledge repair a brake booster large vacuum leak causing the C0299 code in a Chevrolet?
- While some aspects of diagnosing and repairing the issue can be done by DIY enthusiasts, it is recommended to seek professional help for brake system repairs to ensure safety and proper functioning.
8. How much does it typically cost to repair a brake booster large vacuum leak triggering the C0299 code in a Chevrolet?
- The cost of repair can vary depending on the specific cause of the vacuum leak and whether the brake booster assembly needs to be replaced. It can range from a few hundred to over a thousand dollars.
9. Are there any preventive maintenance steps to avoid encountering the C0299 code due to a brake booster vacuum leak in a Chevrolet?
- Regularly inspecting the brake system, checking for vacuum leaks, and addressing any brake pedal abnormalities promptly can help prevent the occurrence of a brake booster large vacuum leak.
10. Will driving with the C0299 code in a Chevrolet affect fuel economy?
- Driving with the C0299 code may not directly impact fuel economy, but the compromised brake system due to a large vacuum leak can lead to inefficient braking, potentially affecting overall vehicle performance and safety.
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