Truck Liftgate: Common Issues and Practical Maintenance Tips Update Test

When freight needs to move, there’s no time for a liftgate that won’t lift.
Every delivery, dock, and stop depends on that platform doing its job—helping drivers handle heavy loads without strain, and keeping cargo moving safely. But like any hard-working part of a truck, liftgates take abuse. Daily use, changing weather, and neglected maintenance can wear them down fast.

Ignoring early warning signs can turn a small issue into major downtime. Here’s how to spot liftgate trouble before it stops your operation—and how to keep yours running smooth for the long haul.

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Common Liftgate Problems to Watch For

Liftgates don’t usually fail out of nowhere. The signs show up early if you know what to look (and listen) for.

1. The Motor Doesn’t Run

If your liftgate motor refuses to start, it’s usually an electrical issue:

• A bad solenoid, broken switch, or corroded wire can stop power from reaching the motor.

• If you hear no click when power is applied, the solenoid likely needs replacement.

• If power isn’t reaching the motor at all, check the switch or wiring harness.

🔧 Find replacement liftgate solenoids and electrical connectors on FinditParts.

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2. The Platform Won’t Raise or Lower

If the liftgate motor runs but the platform stays still:

• Test your battery voltage—low battery power can starve the system.

• If there’s power to the valves but no movement, wiring may be the issue.

• No power at all? Check or replace the control switch or relay.

⚡ Shop liftgate switches and relays built for heavy-duty trucks.

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3. Hydraulic Fluid Leaks

Leaking fluid is one of the most common—and damaging—liftgate issues.
Check for:

• Cracked hoses, loose fittings, or leaking cylinders

• Residue around the power unit or liftgate frame

• Fluid puddles under the rear of the truck

Tighten fittings carefully and replace any part showing wear or cracks.

🛢️ Find hydraulic hoses, cylinders, and seal kits online.

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4. Slow or Jerky Operation

A sluggish or uneven lift means something’s off in the hydraulic system:

• Check the hydraulic fluid level in the reservoir.

• If fluid looks dark or foamy, replace it.

• Inspect hinges and pivots for corrosion or grime buildup.

🧰 Use premium hydraulic fluid and liftgate lubricants to keep things moving smoothly.

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5. Strange Noises or Creaks

Squeaks or grinding sounds usually mean dry pivot points or loose hardware.
Apply liftgate-safe lubricant to moving joints.
If noise continues, a hinge pin or pivot arm could be bent and should be inspected by a professional.

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Other Signs to Take Seriously

• Platform drops or drifts when raised

• Jerky or uneven movement

• Sagging even under light loads

• Platform won’t fully close or lower

These are early warnings that a small issue—like a bad valve or worn hinge—could lead to a complete failure if ignored.

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Smart Maintenance Tips for Longer Liftgate Life

Follow the Manufacturer’s Service Schedule

Liftgate brands all provide maintenance timelines. Shorten the interval if your gate runs multiple times per shift or operates in cold or dusty environments.

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Use a Maintenance Checklist

Keeping records of each inspection helps spot patterns and recurring issues.
✅ Download the FinditParts Liftgate Maintenance Checklist (PDF)
Use it daily to log visual checks, hydraulic fluid levels, and service intervals.

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Train Operators on Proper Use

Most liftgate problems start with misuse.
Make sure drivers and crew:

• Read and understand safety decals

• Avoid overloading the platform

• Never use the gate for unintended lifting or towing

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Inspect Daily

A simple walkaround before each route catches small issues before they grow:

• Look for leaks or unusual noises

• Check for slow movement or uneven lifting

• Verify the gate folds and stores correctly

Report and fix issues before the next load—don’t wait for a breakdown.

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Store It Right

When not in use, fold and secure the liftgate properly. Leaving it extended can cause hinge stress and damage the lift mechanism over time.

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When to Call a Pro

If you notice power loss, severe leaks, or structural damage, let a qualified technician handle it.
Liftgates operate under hydraulic pressure—improper repairs can be dangerous and costly.

Look for shops that use trusted parts and follow OEM procedures.
When you need replacements, FinditParts gives you access to thousands of OEM and aftermarket liftgate parts from top brands—all in one place.

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Keep Your Fleet Lifting Strong

A reliable liftgate isn’t just about convenience—it’s about safety and uptime.
Catching early signs like leaks or slow operation can save hours of lost productivity and costly repairs. Regular checks, proper lubrication, and using quality parts all go a long way in extending liftgate life.

When it’s time for maintenance or replacement, get the right parts fast.
Shop liftgate solenoids, switches, hydraulic hoses, and seals at FinditParts—the go-to source for heavy-duty truck components that keep your fleet moving.

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