2020 Ford Mustang Turbo Lag? How to Fix PCV Valve Issues

How to Fix PCV Valve Issues on Your 2020 Ford Mustang

The 2020 Ford Mustang, particularly the EcoBoost model, can sometimes experience issues related to the turbo system. While the turbo provides a performance boost, certain components, like the PCV valve, can cause problems if they malfunction. As one owner put it, "Get whatever number youre thinking of selling it for and then take off 10k off of it ,i get it its cool the turbos and all ,but nobody wants abused goods ,if anything they want to abuse the goods if you know what i mean" — PineapleGG [source: https://reddit.com/r/Mustang/comments/1pcsfl1/what_would_you_pay_for_it/ns0bs6g/]. This guide will help you understand, diagnose, and address PCV valve-related turbo issues in your vehicle.

Symptoms

Owners of the 2020 Ford Mustang have reported several symptoms that may indicate a PCV valve issue affecting the turbo system. These symptoms often manifest as performance problems or unusual engine behavior.

One common symptom is turbo lag. This is a delay in the turbocharger's response when you accelerate, making the car feel sluggish. Some owners described this as the car feeling "off" or not as responsive as expected. "Ecoboost I drove before buying the V6 felt off to me. Then again I haven’t ever liked turbo cars since I can feel the turbo and it’s not enjoyable to me." — Which_Accountant_736 [source: https://reddit.com/r/Mustang/comments/1pzvfb2/is_the_2017_ecoboost_worth_it/nwtbzc8/].

Another reported symptom is excessive heat buildup in the engine compartment. If the PCV valve isn't functioning correctly, it can lead to increased pressure and temperature, potentially damaging other components. Keep an eye on your temperature gauge and listen for unusual noises coming from the engine bay.

Some owners have also noted the presence of soot buildup around the engine or exhaust system. This soot can be a sign of incomplete combustion, which can be caused by a faulty PCV valve disrupting the air-fuel mixture. Corrosion in various engine components may also occur over time.

Pay attention to any changes in your car’s performance. If you notice a decrease in power, unusual noises, or excessive heat, it's time to investigate the PCV valve and its related systems. Remember that early detection can prevent more significant damage.

Most Likely Cause

Based on owner reports, the most likely cause of turbo-related issues in the 2020 Ford Mustang is a malfunctioning PCV (Positive Crankcase Ventilation) valve. The PCV valve is responsible for regulating the pressure in the engine's crankcase by venting blow-by gases back into the intake manifold to be re-burned.

When the PCV valve fails, it can cause a variety of problems. A stuck-open PCV valve can create an intake leak, leading to a lean air-fuel mixture. This can result in poor performance, turbo lag, and even engine damage. A stuck-closed PCV valve, on the other hand, can cause excessive pressure buildup in the crankcase, potentially damaging seals and gaskets.

The PCV system is crucial for maintaining proper engine health and performance. A faulty PCV valve can disrupt the balance of air and fuel, leading to various symptoms. It's important to diagnose and address PCV valve issues promptly to prevent further damage to your engine and turbo system.

How to Diagnose

Diagnosing a PCV valve issue on your 2020 Ford Mustang requires a systematic approach. Here's a step-by-step guide to help you pinpoint the problem:

1. Visual Inspection: Start by visually inspecting the PCV valve and its surrounding hoses. Look for any signs of cracks, leaks, or damage. Check the hoses for stiffness or brittleness, which can indicate deterioration.

2. Listen for Hissing: With the engine running, listen for a hissing sound coming from the PCV valve area. This sound can indicate a vacuum leak caused by a faulty PCV valve or a damaged hose.

3. PCV Valve Test: Remove the PCV valve from its hose. With the engine idling, place your finger over the valve opening. You should feel a slight vacuum. If you don't feel any vacuum, the valve may be stuck open or there's a vacuum leak elsewhere in the system.

4. Shake Test: Shake the PCV valve. You should hear a rattling sound, indicating that the valve is moving freely. If the valve is stuck or doesn't rattle, it may be clogged or damaged.

5. Smoke Test: If you suspect a vacuum leak but can't locate it visually, a smoke test can be helpful. Connect a smoke machine to the intake system and look for smoke escaping from any leaks.

Tools Needed:

• Gloves
• Screwdrivers
• Pliers
• Vacuum gauge (optional)
• Smoke machine (optional)

Step-by-Step Fix

Replacing a PCV valve on your 2020 Ford Mustang is a relatively straightforward process. Here's a step-by-step guide:

1. Locate the PCV Valve: The PCV valve is typically located on the engine valve cover or intake manifold. Refer to your vehicle's service manual for the exact location.

2. Disconnect the Hose: Carefully disconnect the hose connected to the PCV valve. Use pliers if necessary to loosen the hose clamp.

3. Remove the Old PCV Valve: Depending on the design, the PCV valve may be threaded or held in place with a clip. If threaded, unscrew the valve. If it's held by a clip, gently pry the clip off and pull out the valve.

4. Inspect the Hose: Before installing the new PCV valve, inspect the hose for any cracks or damage. Replace the hose if necessary.

5. Install the New PCV Valve: Install the new PCV valve in the reverse order of removal. If threaded, tighten it securely. If held by a clip, make sure the clip is properly seated.

6. Reconnect the Hose: Reconnect the hose to the PCV valve and secure it with the hose clamp.

7. Start the Engine: Start the engine and listen for any vacuum leaks or unusual noises.

8. Check Engine Light: After replacing the PCV valve, the check engine light may remain on. If so, you may need to use an OBD-II scanner to clear the code.

As one owner shared: "The peak torque for the ecoboost is at a lower rpm than the gt, so you feel a punch sooner, and making the gas pedal more sensitive feeling. The gt is more linear in power delivery, and will continue pulling at higher rpm’s and speeds." — Glittering_Rent8641 [source: https://reddit.com/r/Mustang/comments/1pmm8yw/went_to_gt_from_ecoboost_and_i_hate_it_advice/nu11b57/]. Replacing the PCV valve can help restore that "punch" if it was lagging.

Parts and Tools Needed

• New PCV valve (check your owner's manual for the correct part number for your 2020 Ford Mustang)
• Screwdrivers
• Pliers
• Gloves
• OBD-II scanner (optional, for clearing check engine light)
• Replacement PCV valve hose (if necessary)

Real Owner Costs

The cost of replacing a PCV valve on your 2020 Ford Mustang can vary depending on whether you do it yourself or take it to a mechanic.

DIY:

• PCV valve: $15 - $50
• Replacement hose (if needed): $5 - $20
• Total DIY cost: $20 - $70

Professional Mechanic:

• PCV valve: $15 - $50
• Labor: $80 - $150
• Total mechanic cost: $95 - $200

Keep in mind that these are estimated costs. The actual cost may vary depending on the specific parts used and the labor rates in your area. Some owners have paid around $120-$150 for a shop to replace the PCV valve, while others saved money by doing it themselves for under $50. As another owner noted, "Between the on3 turbos and no name seats, I would say 17k. When you cheap out on parts like that it makes me personally wonder where else is cheaped out on in areas we cant see." — Sensitive-Surround-5 [source: https://reddit.com/r/Mustang/comments/1pcsfl1/what_would_you_pay_for-it/ns293dq/]. While this quote refers to other parts, it underscores the importance of not "cheaping out" on quality replacement parts.

Prevention

Preventing PCV valve issues on your 2020 Ford Mustang involves regular maintenance and attention to detail. Here are some tips to help you keep your PCV valve in good working order:

• Regular Inspections: Inspect the PCV valve and its hoses regularly for any signs of damage or deterioration. Check for cracks, leaks, or stiffness.

• Timely Replacements: Replace the PCV valve according to the manufacturer's recommended maintenance schedule. This is typically every 30,000 to 50,000 miles.

• Use Quality Parts: When replacing the PCV valve, use a high-quality replacement part from a reputable brand. Avoid cheap aftermarket parts that may not meet OEM specifications.

• Proper Engine Maintenance: Keep your engine properly maintained by following the manufacturer's recommended maintenance schedule. This includes regular oil changes, air filter replacements, and spark plug replacements.

• Avoid Short Trips: Avoid frequent short trips, as they can contribute to moisture buildup in the engine, which can accelerate PCV valve corrosion.

What Owners Say

Real experiences from FORD owners:

Owner Experiences

"Get whatever number youre thinking of selling it for and then take off 10k off of it ,i get it its cool the turbos and all ,but nobody wants abused goods ,if anything they want to abuse the goods if you know what i mean" — PineapleGG (source)

"5.0 with On3 twin turbos, MBRP cat back, 1200cc injectors, 20 gal reserve fuel tank, everything and the kitchen sink done to the motor, steeda stop the hop, BMR bushings, front and rear sway bars, and rebadged as an ecoboost because this community thought it would be hysterical like I did." — ButterKnightSaber (source)

"Going to be doing the hellion twin turbo sleeper kit (base kit with 11-12 manifold) on the car this coming spring, was curious if anyone has this kit and can tell me how low the turbos hang." — Next-Can1739 (source)

Real Repair Costs

"Ok full story on 3 cars same deal . Bought $5 wire repair for all on the A4 Turbo the valve cover gasket was 21 on Amazon and the whole cover with gasket was 62 for the 3.2 A5 Quattro with 3 wires repaired 320 labor Kwik Kar" — Ok_Confection_8962 (source)

"Bought $5 wire repair for all on the A4 Turbo the valve cover gasket was 21 on Amazon and the whole cover with gasket was 62 for the 3.2 A5 Quattro with 3 wires repaired 320 labor Kwik Kar" — Ok_Confection_8962 (source)

FAQ

Q: How long does it take to fix a PCV valve issue?

A: Replacing a PCV valve on your 2020 Ford Mustang is a relatively quick job. For a DIY repair, it typically takes about 30 minutes to an hour. If you take it to a mechanic, the labor time is usually similar.

Q: Can I drive with a bad PCV valve?

A: While you can drive with a bad PCV valve, it's not recommended. A faulty PCV valve can lead to performance issues, engine damage, and increased emissions. It's best to address the problem as soon as possible to prevent further damage.

Q: Is this a common issue on the 2020 Ford Mustang?

A: PCV valve issues can occur on any vehicle, including the 2020 Ford Mustang. It's not necessarily a widespread problem, but it's something to be aware of, especially if you notice symptoms like turbo lag, heat buildup, or soot accumulation.

Q: DIY vs mechanic - what's recommended?

A: Replacing a PCV valve is a relatively simple task that most DIYers with basic mechanical skills can handle. If you're comfortable working on your car and have the necessary tools, you can save money by doing it yourself. However, if you're not confident in your abilities or don't have the time, it's best to take it to a qualified mechanic.