P1191 Chevrolet Code - Intake Air Duct Air Leak
Quick Answer
The P1191 code for Chevrolet indicates an intake air duct air leak. Common causes include Loose or disconnected intake air duct, Cracked or damaged intake air duct, Faulty intake air temperature sensor. 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
- P1191 Chevrolet indicates Intake Air Duct Air Leak.
- Common causes
- Common causes include Loose or disconnected intake air duct, Cracked or damaged intake air duct, Faulty intake air temperature sensor.
- 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.
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Code P1191 Chevrolet Description
The P1191 code for Chevrolet indicates an intake air duct air leak. This means that there is a problem with the intake system of the vehicle, where air is entering the engine. The intake air duct is a crucial component that delivers air to the engine for combustion. Any leak in this system can lead to a variety of issues, affecting the vehicle's performance and fuel efficiency.
Common Causes of P1191 Chevrolet
- Loose or disconnected intake air duct
- Cracked or damaged intake air duct
- Faulty intake air temperature sensor
- Problem with the intake manifold gasket
- Improper installation of aftermarket intake components
Symptoms of P1191 Chevrolet
- Decreased engine performance
- Poor fuel efficiency
- Rough idling or stalling
- Check Engine Light illuminated
- Hissing or whistling noise from the engine bay
How to Fix P1191 Chevrolet
- Inspect the intake air duct for any signs of damage or disconnection.
- Replace any damaged or cracked components, such as the intake air duct or intake manifold gasket.
- Check and replace the intake air temperature sensor if necessary.
- Ensure all connections are secure and properly tightened.
- Clear the diagnostic trouble codes and test drive the vehicle to verify the repair.
Cost to Fix P1191 Chevrolet
The typical repair costs for an intake air duct air leak can range from $100 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check with local shops for a more accurate estimate.
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