FORD E3ZZ-9A486-E Smog Pump 5.0 E3ZE-EB

( Part Type: Pump ), ( Ipn: E3zz-9a486-e ), ( Country Of Origin: United States )

Review FORD Oem Smog Pump 5.0 fits MUSTANG 302 1985–1988

The **E3ZZ-9A486-E (1985 1987 Ford Mustang 5.0L/302 E3ZE/EB Smog Pump)** is a meticulously engineered, high-performance component designed exclusively for the legendary **Ford 5.0L (302ci) E3ZE and EB engines** found in the **1985 through 1987 Mustang**, including the **SVT Cobra (1986 1987)**. This smog pump is a critical yet often overlooked part of the **EFI (Electronic Fuel Injection) system**, ensuring compliance with California s stringent emissions regulations while maintaining optimal engine performance. Crafted from durable, corrosion-resistant materials, the pump is built to withstand the demanding conditions of high-performance driving, delivering a precise and consistent flow of **EGR (Exhaust Gas Recirculation) air** to the intake manifold. The **E3ZZ-9A486-E** is specifically tuned for the **E3ZE (early bolt-on) and EB (later, high-performance) variants**, featuring a **vacuum-operated diaphragm mechanism** that activates under specific engine conditions, reducing harmful NOx emissions without sacrificing throttle response or power delivery. Whether installed in a **restomod project, a daily driver, or a high-mileage classic**, this smog pump ensures that your Mustang meets **CARB (California Air Resources Board) standards** while preserving the engine s original performance characteristics. Its **OEM-compatible design** guarantees a seamless fit with the **Ford EFI system**, including the **ECM (Engine Control Module)**, while its **reliable, long-lasting construction** minimizes the risk of leaks or failures, even under aggressive driving scenarios. For enthusiasts seeking to **restore authenticity, enhance emissions compliance, or simply maintain their Mustang s integrity**, this smog pump is an indispensable, high-quality replacement that bridges the gap between **performance and regulation** with precision engineering.

### **Pros and Cons of Buying a 1985 1988 Ford Mustang with a 5.0L (302) E3Z/EB Engine and Smog Pump**

#### **Pros**

1. **Classic Mustang Design**

- The 1985 1988 Mustangs (especially the E3Z/EB models) feature the iconic "Fox Body" design, which remains highly desirable among enthusiasts. The aggressive front end, wide body, and available options like the Mach 1 or Cobra make these models visually appealing.

2. **Strong Engine Options**

- The **5.0L (302) V8** (also known as the "Y-block" or "302 Windsor") is a legendary engine, known for its reliability, power, and mod potential. With proper maintenance, it can last well over 200,000 miles.

- The **E3Z/EB** designation refers to the **smog pump** (a California-specific emission control device), which is relatively easy to remove if you live outside California or don t need it. This can improve drivability and reduce maintenance concerns.

- The engine is **easy to work on**, with a simple design that makes repairs and upgrades accessible to DIYers.

3. **Affordable Entry Point for Mustang Ownership**

- Compared to modern Mustangs or earlier high-performance models (like the Boss 302 or Shelby GT500), these years are **budget-friendly**, making them a great way to own a Mustang without breaking the bank.

- Parts are **widely available**, and aftermarket support is strong, with a large community of enthusiasts.

4. **Mod Potential**

- **Intake and exhaust modifications** (e.g., K&N filter, headers, or a cat-back exhaust)

- **Fuel system upgrades** (e.g., upgraded injectors, fuel pump, or a standalone ECU)

- **Camshaft swaps** (e.g., Holley or Edelbrock cams for more power)

- **Turbocharging or supercharging** (though this requires more advanced modifications)

- The **transmission options** (4-speed manual, 5-speed manual, or C6 automatic) allow for customization based on preference.

5. **Reliability (With Proper Maintenance)**

- When maintained correctly, the **5.0L V8 is durable**. Common issues (like valve train wear or oil leaks) can be mitigated with regular servicing.

- The **Fox Body chassis** is sturdy, and with proper suspension work, these Mustangs can handle daily driving or light track use.

6. **Strong Community & Support**

- There is a **large enthusiast community** for these Mustangs, with forums (e.g., MustangForums, FoxBody.org), meetups, and aftermarket shops specializing in Fox Body restorations.

- **Restoration projects** are popular, allowing owners to bring these cars back to showroom condition.

7. **Fun to Drive**

- The **5.0L V8** provides a **smooth, linear powerband** that makes these Mustangs enjoyable to drive, whether on the street or at the track.

- The **manual transmission option** (especially the 5-speed) offers a more engaging driving experience.

---

#### **Cons**

1. **Rust Issues (Especially in Older Examples)**

- Many **1985 1988 Mustangs** suffer from **rust**, particularly in the **floor pans, rocker panels, and wheel wells**. A thorough inspection is **essential** before purchase.

- **California models** (especially those with the smog pump) may have **additional corrosion** due to road salt and environmental factors.

2. **Emission & Smog Pump Concerns**

- The **E3Z/EB smog pump** is a **California-specific emission control device** that can cause **driving issues** (e.g., rough idle, stalling) if it fails or is not properly maintained.

- **Removing the smog pump** (if not needed) is possible but requires **modifying the engine control system**, which may void emissions compliance in some states.

- **Smog check failures** can be a hassle in states with strict emissions laws.

3. **Transmission & Drivetrain Wear**

- **Automatic transmissions (C6)** can develop **slippage or rough shifting** over time, especially if fluid changes were neglected.

- **Manual transmissions (4-speed and 5-speed)** can wear out if not properly maintained, leading to **grinding gears or clutch failure**.

- **Differential and driveshaft issues** (e.g., worn bearings, universal joints) are common in high-mileage examples.

4. **Electrical & Computer Issues**

- **Failed sensors** (e.g., MAP, TPS, ECT)

- **ECU or PCM issues** (especially in later models with more complex emissions systems)

- **Alternator or battery problems** (due to age and lack of maintenance)

- **Aftermarket ECU upgrades** (e.g., Haltech, Link) can help, but they require some technical knowledge.

5. **Suspension & Handling Degradation**

- **Stock suspension** is **soft and outdated**, leading to **poor handling** compared to modern Mustangs.

- **Worn bushings, shocks, and struts** can make the car feel **unpredictable**, especially at higher speeds.

- **Steering rack leaks** (common in older Mustangs) can cause **loss of hydraulic pressure**, leading to stiff or erratic steering.

6. **Interior Wear & Tear**

- **Upholstery, carpets, and dash materials** degrade over time, especially in high-mileage examples.

- **Heater and A/C systems** can fail, making climate control unreliable.

- **Rust in the firewall or floorboards** can lead to **structural concerns**.

7. **Fuel & Emissions Compliance Challenges**

- **Modern fuel standards** (higher ethanol content) can cause **gumming in carburetors or fuel lines** if the car is not properly adapted.

- **Smog pump removal** may require **state-specific modifications**, and some areas still enforce emissions laws strictly.

- **OBD-II compliance** (required in newer cars) is not an issue, but **pre-OBD-II diagnostics** can be more difficult.

8. **Parts & Labor Costs**

- While **parts are affordable**, **labor costs** can add up, especially if the car requires **major mechanical work** (e.g., engine rebuild, transmission swap).

- **Specialty parts** (e.g., rare OEM components) can be difficult to find, requiring aftermarket or custom solutions.

9. **Resale Value & Depreciation**

- These Mustangs **depreciate quickly** compared to newer models or highly sought-after classics (e.g., early Boss 302s, Shelby GT350s).

- **Restored examples** hold value better than neglected ones, but they are **not investment-grade**.

10. **Modern Safety & Comfort Shortcomings**

- **No modern safety features** (e.g., ABS, airbags, stability control).

- **Poor crash protection** compared to today s standards.

- **Noisy cabin** (especially with worn suspension and tires).

- **Limited modern tech** (no Bluetooth, USB, or advanced driver aids).

---

### **Conclusion & Recommendation**

- **Enthusiasts who want a fun, drivable Mustang on a budget.**

- **Owners who enjoy working on projects and restoring classic cars.**

- **Those who prioritize **driving enjoyment** over modern comfort and safety.**

- **People who plan to **modify the engine and suspension** for better performance.**

- **Collectors or show car owners who want a **restorable Fox Body Mustang** with strong aftermarket support.**

- **Buyers who want a **plug-and-play, low-maintenance** daily driver.**

- **Those who need **modern safety and tech features** (e.g., ABS, Bluetooth, backup camera).**

- **People who dislike **rust, electrical gremlins, or transmission issues** without major repairs.**

- **Investors looking for **high resale value** (these Mustangs depreciate quickly).**

- **Drivers who prefer **smooth, modern handling** over the **softer, more forgiving Fox Body ride.****

1. **Inspect Thoroughly Before Purchase**

- Check for **rust** (especially in the floor pans, wheel wells, and firewall).

- Test the **engine** for **power, smoothness, and leaks** (oil, coolant, transmission fluid).

- Verify **transmission operation** (no slipping, rough shifting).

- Inspect the **suspension, steering, and brakes** for wear.

- Ensure the **smog pump is functional

Details:

part #: e3zz-9a486-e prices

• $199.99-$318.78

specifications emissyste:

• for models: 302, Mustang
• for makes: Ford
• for years: 1985-1988
• part type: Pump
• ipn: E3zz-9a486-e
• country of origin: United States

shipping emissyste:

• class: Standard, Expedited
• transit: 5-11 Days
• type: Calculated
• cost: $36.30
• service: USPS Ground Advantage, USPS Priority Mail
• carrier: USPS

returns emissyste:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

seller emissyste:

• city: Monticello, Georgia
• rating: 99.9%
• # reviews: 15427

payments emissyste:

• other
• wallet: Apple-pay
• credit card: Discover

offer emissyste:

• started: May 21, 2026
• availability: In Stock
• quantity: 1
• sold: 0
• options: Ship-to-home

general emissyste:

• condition: Used
• Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts

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