PONTIAC 337-58822 Throttle Body 2.0L 17089076

( Brand: Pontiac ), ( Model: LEMANS ), ( Type: Throttle Body ), ( Country Of Origin: Japan ), ( Ipn: 337-58822 ), ( Placement: Throttle Body Assembly )

Review PONTIAC Isuzu Throttle Body 2.0l Id fits LEMANS OPTIMA 1989–1990

The **Pontiac 337-58822 89-90 Isuzu Optima Throttle Body (Part #17089076)** is a precision-engineered component designed to deliver optimal performance and reliability for the 2.0L Isuzu Optima engine found in select Pontiac models from the late 1980s and early 1990s. This throttle body is a critical part of the fuel injection system, responsible for regulating airflow into the engine while working in tandem with the engine control module (ECM) to maintain precise throttle response. Crafted from high-quality materials, including durable plastic and metal components, this throttle body is built to withstand the demands of daily driving, ensuring consistent throttle operation and smooth acceleration. The design incorporates a reliable cable or electronic throttle control mechanism, depending on the model year, allowing for seamless engagement with the accelerator pedal. Whether installed in a classic Pontiac or restored Isuzu Optima, this throttle body ensures efficient fuel delivery, improved throttle response, and reduced emissions, making it an essential upgrade for enthusiasts seeking to restore or enhance the performance of their vehicle. Its compatibility with the 2.0L engine series ensures a perfect fit, while its robust construction guarantees longevity, even under demanding conditions. For those looking to maintain or upgrade their vehicle s drivetrain, this throttle body is a dependable choice that combines functionality with durability.

### **Pros and Cons of buying a Pontiac 337-58822 (Isuzu Optima Throttle Body for 2.0L 17089076, Model Years 1989-1990)**

1. **Compatibility** This throttle body is designed specifically for the **Pontiac 337 (1989-1990)** and the **Isuzu Optima (1989-1990)**, ensuring a proper fit without modifications. It is also compatible with some **Chevrolet and GMC** models from the same era that share similar engine configurations.

2. **Performance Potential** A clean or upgraded throttle body can improve throttle response, fuel efficiency, and overall engine performance, especially if the original part was worn or clogged.

3. **Cost-Effective Replacement** Compared to OEM parts, aftermarket throttle bodies (if genuine or high-quality) are often more affordable, making them a budget-friendly option for repairs.

4. **Ease of Installation** These throttle bodies are relatively straightforward to install, requiring basic mechanical skills and standard tools. Many owners report being able to complete the job in under an hour with proper instructions.

5. **Availability of Parts** While not as common as modern components, this throttle body is still available through specialty auto parts suppliers, online marketplaces, and salvage yards.

6. **Potential for Tuning** If you plan to modify the engine (e.g., adding a turbocharger, ECU tuning, or intake upgrades), a fresh throttle body can help optimize airflow and prevent issues like stalling or rough idling.

7. **Prevents Long-Term Damage** A failing throttle body can cause **flooded engines, poor acceleration, or even catalytic converter damage** due to unburned fuel. Replacing it early can save money on more extensive repairs.

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1. **Age and Wear** Parts from the late '80s and early '90s may be **less durable** than modern equivalents, especially if stored improperly. Look for signs of rust, cracks, or worn internals.

2. **Limited Availability of Genuine OEM Parts** Finding a **brand-new, original Pontiac/Isuzu throttle body** can be difficult. Most sellers offer **rebuilt, remanufactured, or aftermarket alternatives**, which may not match the exact specifications of the original.

3. **Potential for Counterfeit or Low-Quality Replacements** Some sellers may offer **fake or poorly made throttle bodies**, leading to **leaks, poor sealing, or electrical issues**. Always verify the seller s reputation and check for authenticity.

4. **Compatibility Risks** While this part is listed for the **337 (2.0L 17089076) and Isuzu Optima**, slight variations in wiring, mounting, or throttle cable connections can occur. **Double-check compatibility** before purchasing.

5. **ECU or Sensor Issues** If the **throttle position sensor (TPS) or ECU** is faulty, replacing just the throttle body may not fully resolve performance problems. A **diagnostic scan** is recommended before buying.

6. **Rust and Corrosion** Older throttle bodies may have **internal rust**, affecting throttle blade movement. Inspect for smooth operation and lack of stiffness before installation.

7. **Limited Long-Term Support** Unlike modern vehicles, finding **specialist mechanics** familiar with these systems can be challenging. DIY installation is often the best approach.

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Buying the **Pontiac 337-58822 (Isuzu Optima Throttle Body, 2.0L 17089076, 1989-1990)** can be a **wise investment** if you need a **direct replacement** for performance or reliability issues. However, **quality, compatibility, and condition** are critical factors that can make or break the purchase.

If you are **restoring a classic car** or **fixing a rare engine**, this part is **essential** just ensure it is **authentic, in good condition, and properly installed**. For **budget-conscious buyers**, it offers a **cost-effective solution** compared to OEM parts, but **expect some challenges** in sourcing and installation.

If you are **not mechanically inclined**, consider **consulting a specialist** before purchasing to avoid compatibility or installation issues.

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1. **Verify the Part Number & Compatibility** Confirm that **17089076** matches your engine s exact throttle body model. Some engines may require slight modifications (e.g., wiring harness adjustments).

2. **Buy from a Reputable Seller**

- Prefer **eBay (with feedback), specialty auto parts stores, or salvage yards with good reviews**.

- Avoid **unknown sellers** offering parts at suspiciously low prices this could indicate fakes or damaged goods.

- If possible, **request photos/videos** of the part before purchasing.

3. **Inspect the Throttle Body Before Installation**

- Check for **rust, cracks, or stiff throttle blades**.

- Ensure the **seals and gaskets** are intact.

- Test the **throttle blade movement** it should open and close smoothly.

4. **Consider a Remanufactured or High-Quality Aftermarket Option**

- If an **OEM part is unavailable**, a **rebuilt throttle body** (e.g., from **Delco, Moroso, or a trusted remanufacturer**) may be just as reliable.

- Avoid **cheap no-name brands** that may fail prematurely.

5. **Update the ECU or Sensors if Needed**

- If the **throttle position sensor (TPS) is failing**, replacing just the throttle body may not fix idle or acceleration problems. A **scan tool** can help diagnose other issues.

6. **Install Properly**

- Follow **factory wiring diagrams** (available online for free).

- Ensure **vacuum hoses and electrical connections** are secure.

- If unsure, **consult a mechanic** familiar with these engines.

7. **Test After Installation**

- Check for **leaks, proper idle, and throttle response**.

- If the engine **stalls or runs rough**, there may be an **ECU or sensor issue** that needs addressing.

You have a **confirmed need** for this specific throttle body.

You **verify quality and compatibility** before purchase.

You are **prepared for potential installation challenges**.

You cannot **confirm the part matches your engine**.

The seller has **no reputation** or offers **unrealistically cheap** parts.

You **ignore inspection** and assume it will work without testing.

For most **1989-1990 Pontiac 337 or Isuzu Optima owners**, this is a **necessary and worthwhile purchase** when sourced correctly. Just **prioritize quality over price** to avoid future headaches.

Details:

See Images For Clear Details. Item Is Pre-Owned. Has been in storage. Only the Items Pictured Are Included. Item Comes As Shown With No Box.

Defects: Item Has Some. Dust / Rub Marks From storage.

part #: lemans prices

• $80.00-$99.95

specifications throobo:

• for models: Lemans, Optima
• for makes: Isuzu, Pontiac
• for years: 1989-1990
• brand: Pontiac
• model: Lemans
• type: Throttle Body
• country of origin: Japan
• ipn: 337-58822
• placement: Throttle Body Assembly

shipping throobo:

• transit: 4-10 Days
• service: USPS Ground Advantage
• type: Calculated
• class: Standard
• cost: $0.00
• carrier: USPS

payments throobo:

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

returns throobo:

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

general throobo:

• Car Truck Parts Accessories > Air Fuel Delivery > Throttle Bodies
• condition: Used

offer throobo:

• options: Ship-to-home
• quantity: 1
• started: March 10, 2026
• sold: 0
• availability: In Stock

seller throobo:

• # reviews: 5522
• rating: 98.9%
• city: Atlanta, Georgia

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