Liftgate Repair in Austin, TX

Most liftgate failures are electrical

A liftgate that works in the morning and quits by the afternoon usually is not a hydraulic problem. Liftgates draw serious current, and they run off the truck's charging system or a dedicated battery. A weak battery, a charge line that is not delivering, a corroded ground, or a tired solenoid produces exactly that intermittent failure — and swapping the pump will not fix it.

That is where a diesel shop has the advantage. Charging circuits, grounds, and load testing are everyday electrical diagnosis for us. We test the supply first, so you are not paying for a hydraulic repair the gate never needed.

What we repair

• Electrical — charging circuits, batteries, grounds, switches, controls, and solenoids
• Hydraulics — pumps, cylinders, hoses, fittings, valves, and fluid
• Platform and structure — platforms, arms, hinge pins, bushings, and mounting
• Operation and safety — level, travel, stops, and the controls the operator depends on

Tuck-under, rail, column, cantilever, and side-mount gates, from every major liftgate maker. We supply the replacement parts and fit them.

When it will not lift

If the motor runs but the platform will not rise, the electrical side is at least partly working and the fault is downstream: low or contaminated fluid, an internal cylinder leak, or a relief valve that is not holding. If nothing happens at all, we start at the supply — battery, charge line, ground, and switch — because that is where a dead gate usually is.

Don't keep using a gate that drags

A platform that droops, drags, or sits out of level is telling you something — worn hinge pins, a bent arm, or a cylinder losing pressure. A gate that gives way under load can drop the cargo or the person standing on it. That is a reason to bring it in now, not at the next service.

Liftgates on a delivery fleet

On a fleet that delivers, the liftgate is as critical as the engine — a truck that cannot unload is a truck that cannot work. Fluid, hoses, pins, and the charging circuit all wear on a schedule, so on a fleet account we check them alongside the chassis service while the truck is already off the road. Two or more vehicles is a fleet.

See truck body repair for the rest of the box, or call 512-717-2777.

Common questions

Why does my liftgate work sometimes and not others?

Usually the electrical supply rather than the gate. Liftgates draw heavy current, and a weak battery, a failing charge line from the truck, a corroded ground, or a tired solenoid will let the gate work when the truck has been running and quit after it has sat. We test the charging circuit and the battery under load before touching the hydraulics.

The motor runs but the platform will not lift. What is wrong?

Often low or contaminated hydraulic fluid, an internal leak in a cylinder, or a relief valve that is not holding pressure. A motor that runs proves the electrical side is at least partly working; the fault is downstream of it. Leaks at hoses and fittings are the first thing we check.

Do you repair every type of liftgate?

Tuck-under, rail, column, cantilever, and side-mount liftgates, from every major liftgate maker. We supply replacement parts and fit them.

Should liftgates be on a maintenance schedule?

Yes, on a delivery fleet especially. Fluid, hoses, hinge pins, and the charging circuit wear on a schedule, and a liftgate that fails on a route stops that truck delivering entirely. On a fleet account we check them alongside the chassis service so the gate is looked at while the truck is already in.

My liftgate is dragging or not level. Is that safe to use?

Treat it as a warning. A platform that droops, drags, or sits out of level usually means worn hinge pins or bushings, a bent arm, or a cylinder losing pressure — and a gate that fails under load can drop the load or the operator. Bring it in before it gets worse.