Replacing both hood struts is typically the safer, more reliable choice. If one strut is failing, replacing both helps ensure balanced lift, consistent hood height, and reduces the risk of a future, unexpected failure.
Why replacing both at once is commonly recommended
Hood struts (gas springs) wear over time, and a single worn unit can lead to uneven lifting and hood misalignment. Replacing them in pairs ensures the same operating characteristics on both sides and minimizes the chance of one strut failing soon after the other.
Consider these primary reasons to replace both at once:
- Balanced lifting force on both sides for smooth opening and closing.
- Even wear means the second strut is likely near the end of its life if the first is failing.
- Prevents hood misalignment or uneven resting height from unequal strut strength.
- Simplifies maintenance by using identical parts with the same specifications.
- Reduces the risk of an unexpected failure that could jeopardize safety or hood alignment.
Replacing both at the same time typically improves reliability and helps preserve the hood’s proper alignment over time.
How to replace both hood struts safely
Before you begin, confirm you have the correct parts for your vehicle and understand the safety steps. If you’re not comfortable performing the replacement, hire a professional.
Steps to replace both hood struts:
- Identify the correct replacement parts by year, make, model, and the strut force rating. Check the owner's manual or parts retailer for compatibility.
- Gather tools and safety gear, and securely support the hood with a prop or have an assistant hold it open.
- Remove the old struts by releasing the mounting clips or bolts at the hinges or studs. Don’t let the hood drop unexpectedly.
- Compare the new struts with the old ones to confirm matching length and mounting orientation. Install in the same orientation on both sides.
- Attach the new struts, ensuring clips or fasteners are secure. Lower and raise the hood slowly to test smooth operation and hold-open function, if provided.
Concluding: After installation, verify the hood sits evenly, the latch aligns properly, and the hood holds at the open position. If recommended by the manufacturer, apply any specified lubricant to hinge points.
Optional note: When might replacing just one be considered?
There are rare circumstances where replacing a single strut might be discussed, such as when the other one is near-new or the system uses a unique design. However, this approach is generally discouraged due to potential imbalance and safety concerns. Always check vehicle-specific guidance or consult a mechanic before proceeding with a single-strut replacement.
Summary
In most cases, replace both hood struts rather than only the worn one. Doing so ensures balanced lifting, consistent hood height, and reduces the risk of another failure soon after installation. If you’re unsure about the process, seek professional help to ensure a safe and correct replacement.
Can shocks last 150,000 miles?
As a general guideline: - Shock absorbers/struts: 50,000 to 100,000 miles. - Control arms: 90,000 to 100,000 miles. - Ball joints: 70,000 to 150,000 miles.
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How long do hood struts last?
Most hood struts last five to 10 years, but this varies by manufacturer and style of strut.
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Is it better to replace both shocks at the same time?
Why should shock absorbers be replaced in pairs? Any time a shock absorber needs to be replaced, its companion across the same axle (front or rear) must also be replaced to ensure that at least both shocks are in equivalent working condition.
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Should you replace both struts or just one?
Maintain Consistent Performance – Replacing both shocks/struts on an axle at the same time ensures that both sides deliver the same consistent performance. If you only replace one side of an axle, it can create uneven damping characteristics.
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