P1191 Cadillac Code - Intake Air Duct Air Leak
Quick Answer
The P1191 Cadillac diagnostic trouble code indicates an intake air duct air leak, meaning that there is a problem with the air intake system on the vehicle. Common causes include Cracked or damaged intake air duct, Loose or disconnected hoses in the air intake system, 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 Cadillac indicates Intake Air Duct Air Leak.
- Common causes
- Common causes include Cracked or damaged intake air duct, Loose or disconnected hoses in the air intake system, 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 Cadillac Description
The P1191 Cadillac diagnostic trouble code indicates an intake air duct air leak, meaning that there is a problem with the air intake system on the vehicle. The intake air duct is responsible for delivering air to the engine for combustion. If there is a leak in this system, it can result in a variety of performance issues and potential damage to the engine.
Common Causes of P1191 Cadillac
- Cracked or damaged intake air duct
- Loose or disconnected hoses in the air intake system
- Faulty intake air temperature sensor
- Improper installation of aftermarket air intake components
- Contaminants blocking the air intake system
Symptoms of P1191 Cadillac
- Decreased fuel efficiency
- Rough idling or engine misfires
- Hesitation or lack of power during acceleration
- Check Engine Light illuminated on the dashboard
How to Fix P1191 Cadillac
- Inspect the intake air duct and hoses for any cracks or damage.
- Check the intake air temperature sensor for proper functioning.
- Repair or replace any damaged components in the air intake system.
- Clear any contaminants blocking the air intake system.
- Reset the Check Engine Light and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1191 Cadillac
The typical repair costs for resolving an intake air duct air leak can range from $100 to $500, depending on the extent of the damage and the cost of replacement parts. This estimate includes both 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 recommended to inquire about local rates for a more accurate estimate before proceeding with the repair.
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