Expect roughly $60–$150 at a shop; DIY parts only are typically around $10–$40. The exact price depends on your engine variant, local labor rates, and whether a new grommet or hoses are required.
The PCV valve regulates crankcase ventilation and is usually located on the valve cover. In the GMC Terrain, replacement is a relatively simple job that a capable DIYer can perform, or a quick task for a technician. Prices include both parts and labor and can vary by model year, engine type, and region.
Cost breakdown
The following figures outline typical costs you may encounter when replacing the PCV valve on a GMC Terrain.
Parts cost
- PCV valve: typically $5–$20.
- Valve cover grommet and related hoses (if needed): about $2–$15.
Parts are inexpensive, and most of the expense comes from labor. If you’re comfortable with basic tools, you can save by doing it yourself.
Labor and additional costs
- Labor time: about 0.5–1 hour.
- Shop labor rate: roughly $80–$120 per hour, depending on location.
- Potential extras: if additional components must be replaced (e.g., brittle hoses), add $5–$50.
In most cases, a professional replacement falls in the $60–$150 range, with rare scenarios reaching around $200 if extra parts or longer service time are needed.
DIY vs professional service
Replacing a PCV valve is one of the simpler maintenance tasks and can save money if you have basic tools and do-it-yourself aptitude. If you’d rather not handle it yourself, a quick service at a shop is typically efficient and affordable.
When deciding, consider symptoms such as rough idling, increased oil consumption, or a check engine light with a PCV-related code, which are common indicators that the PCV system may need attention.
DIY step overview (for experienced DIYers)
If you choose to tackle this at home, here are general steps to follow. Always consult your vehicle’s service manual for model-specific instructions.
- Open the hood and locate the PCV valve on or near the valve cover.
- Carefully disconnect the vacuum hose from the valve.
- Twist and pull out the old PCV valve; inspect the grommet for wear.
- Install the new PCV valve and replace the grommet if needed.
- Reconnect the vacuum hose securely and start the engine to verify operation.
Safety note: work on a cool engine, use gloves, and dispose of the old valve properly. If you’re unsure at any step, seek professional help to avoid vacuum leaks or engine damage.
Summary
For a GMC Terrain, replacing the PCV valve generally costs about $60–$150 at a shop, with parts-only DIY costs around $10–$40. Engine type, year, and local labor rates drive the final price, and optional parts like hoses or a grommet can add modest costs. If you’re comfortable with basic car repairs, DIY can be a quick, inexpensive option; otherwise, a brief shop visit typically delivers a reliable, fast fix.
What are the three signs of a bad PCV valve?
Here are just some of the symptoms that you might notice:
- Discolored exhaust gas that is white, black, or blue.
- A check engine light warning.
- Rough idling and acceleration.
- Whistling or hissing noises from the engine.
- Increased fuel consumption.
- Misfiring.
- Engine oil leaks.
Where is the PCV valve on a 2018 GMC terrain?
It's built into the valve cover. Get a breather cap to replace the oil cap, that's what I used every winter on mine. Oil catch can keeps that out of your intake. Even a functional PCV system dumps some dirty oil into your engine.
What is the most common problem with GMC terrain?
Engine and Emission Performance Issues
The most common problems with the 2024 GMC Terrain relate to the powertrain and emission systems. The turbocharged 1.5-liter four-cylinder engine delivers solid efficiency but has been linked to occasional power loss, misfires, and carbon buildup on intake valves.
Is it bad to drive with a bad PCV valve?
Yes. Malfunctioning components can cause crankcase pressure buildup, blown seals, and increased oil consumption. Changing the valve is low-cost compared to engine damage.