Troubles w PCV & Water Pump – 2017 Audi Q7

Project Name: Troubles w/ PCV & Water Pump 2017 Audi Q7

Project Type: Residential

Location: La Mesa, CA

Duration: 3 Days

Project Cost: $4,000

Primary Service(s) Provided:

• PCV (Crankcase Vent Valve) replacement
• Replacement of fuel injector o rings, temperature sensor, breather hose, and intake gaskets
• Thermostat housing and water pump replacement to resolve coolant leak
• Supercharger manifold coolant pipe gasket replacement
• Full coolant system flush and refill
• Oil change and spark plug replacement

Project Details:

This 2017 Audi Q7 arrived with a loud whistling coming from the crankcase vent valve (PCV) and a noticeable coolant leak. Our team quickly diagnosed the PCV as the source of the whistle, while a cooling system pressure test pinpointed the thermostat housing and water pump as the culprits for the leak. We also discovered coolant leaking from the supercharger manifold pipe. To address both the original and related issues, we replaced the PCV and associated components including fuel injector o rings, breather hoses, and intake gaskets along with the thermostat housing, water pump, and manifold gaskets. The coolant system was fully flushed and refilled, and we performed a fresh oil change and spark plug replacement for added reliability.