Snowblower Not Throwing Snow Far? 6 Fixes That Actually Work

There’s nothing more frustrating than firing up the snowblower mid-storm only to watch snow dribble out of the chute and plop onto the ground a foot away — while the snow keeps piling up around you. If your snowblower won’t throw snow like it used to, the problem is almost always one of six things, and most of them take just minutes to check. Below you’ll find the causes in likelihood order, so start at the top and work your way down.

Which Problem Do You Have? (Read This First)

Not every “won’t throw” problem is the same thing. Match your symptom before you start wrenching:

What you see	What’s probably wrong	Where to go
Snow barely leaves the chute — weak, short discharge	Chute clog, shear pins, belt, or impeller issue	You’re in the right place — keep reading
The machine plows snow forward instead of throwing it	The auger isn’t feeding snow to the impeller at all	See our guide on why your snow blower is pushing snow
Nothing comes out of the chute at all	Fully clogged chute or a broken shear pin	Jump to Cause #1 and Cause #2 below

Weak throwing distance — this article — means snow is moving through the machine, it just can’t get any real distance behind it. Pushing means the snow never reaches the impeller in the first place. Different problems, different fixes, so make sure you’re solving the right one.

The 6 Causes, in Likelihood Order

1. The Chute Is Clogged With Ice or Slush

The number-one mid-storm cause of weak throwing distance. Wet snow packs into the chute and discharge opening, narrowing the passage until snow can barely squeeze through. You’ll often see the stream coming out unevenly or pulsing, and the machine may sound like it’s laboring.

How to fix it:

1. Shut the engine OFF, remove the key, and wait for all moving parts to come to a complete stop.
2. Use the clean-out tool (the plastic stick that came with your machine) or a sturdy wooden stick to break up the packed snow in the chute — work from the top down.
3. NEVER use your hands — not even with gloves on. The auger and impeller can grab a sleeve or glove faster than you can react.
4. Once it’s clear, restart and run at full throttle for a minute to blow out any remaining slush.

Prevention: a quick spray of silicone-based lubricant inside the chute before the storm makes a real difference — see our guide on how to prevent snow from sticking to your snowblower.

2. Worn or Broken Shear Pins

Shear pins are the sacrificial bolts connecting the auger to its shaft. They’re designed to snap if the auger hits something solid — but they also wear down gradually over time. When they’re worn (not fully broken), the auger still turns but slips under load, feeding the impeller at half speed. Result: weak, anemic throwing distance even though everything looks like it’s working.

How to check: with the engine OFF and the spark plug wire disconnected, try turning the auger by hand. If the auger blades spin freely on the shaft without resistance — or wobble loosely — the shear pins are shot. Replacing them takes about five minutes with the correct pins for your machine. Full walkthrough here: are snow blower shear pins universal?

3. A Slipping Auger or Impeller Belt

The belt transfers engine power to the auger and impeller. A glazed, stretched, or oil-contaminated belt slips instead of gripping — especially under the heavy load of wet snow. The classic symptom: throwing distance is fine in light snow but collapses in the heavy stuff, sometimes with a faint burning-rubber smell.

How to check: engine OFF, pop the belt cover and look at the belt. Shiny or glazed sides, visible cracks, or more than about half an inch of slack when you press it mean it’s done. Adjusting tension is a short job; replacing a worn belt is straightforward — here’s how to change a belt on a snowblower.

4. A Damaged or Rusted Impeller

The impeller is the high-speed fan that actually launches the snow out of the chute. Bent blades, heavy rust, or a widened gap between the blade tips and the housing kill throwing distance — snow leaks around the blades instead of being flung out.

The impeller-gap check: engine OFF, spark plug wire disconnected. Look into the discharge area at the gap between the impeller blade tips and the housing. If you can fit more than a finger’s width in there, or you spot bent or broken blades, the impeller needs attention. Light surface rust can be cleaned off; bent blades or a badly worn housing mean replacement.

5. You’re Running at Low Throttle

This one surprises people. Throwing distance comes almost entirely from impeller RPM — and impeller RPM comes from engine RPM. Running at half throttle to “take it easy” on the machine starves the impeller, and the snow just flops out of the chute. For maximum throwing distance, run at FULL throttle whenever you’re blowing snow. The engine is designed for it.

6. The Snow Itself: Wet and Heavy

Sometimes the machine is fine and the snow is the problem. Wet, heavy snow — the kind that makes great snowballs — can weigh three to four times more than light powder, and no snowblower throws it as far. In these conditions: take narrower passes (about half the auger width), don’t let snow pile up deep before you blow, and keep the throttle at full. If your machine throws powder 30 feet but slush only 12, that’s physics, not a malfunction.

The 5-Minute Pre-Storm Checklist

Do this before the storm hits and you’ll prevent most weak-throw problems before they start:

1. Shear pins — wiggle the auger; replace worn pins now, not mid-storm.
2. Belt tension — pop the cover, check for glazing, cracks, and slack.
3. Chute prep — spray the inside of the chute and auger housing with silicone lubricant so wet snow can’t pack in (full prevention guide).
4. Full-throttle habit — decide now: the throttle stays at max while blowing.
5. Clear the area — move doormats, hoses, and newspapers out of the path so nothing jams the auger mid-storm.

Safety — The Non-Negotiables

• Engine OFF, key OUT, and spark plug wire disconnected before you touch the chute, auger, or impeller. Every time. No exceptions.
• Clear clogs with the clean-out tool or a stick — never your hands.
• Keep hands, feet, and loose clothing away from the discharge chute while the machine is running.
• If the engine is also running rough or surging while throwing distance drops, the engine itself may be struggling — see is your snow blower surging?

Frequently Asked Questions