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Signs You Need to Replace Your Lawnmower

Even if you had bought the most durable lawnmower on the market, there will eventually come a time when you have to get a replacement. You can sharpen the blades and change the spark plug to extend its lifespan, but when it is simply too old or too damaged, you have to let it retire.

Whether you have a Ferris ride-on lawnmower or a rotary mower, here are the signs that you need to get a replacement as soon as possible:

signs you need to replace your lawn mower

Repairs are more expensive

An average lawnmower typically lasts for 7 to 10 years. By then, it will already be out of warranty, and you will have to pay for the repairs when it breaks down. Minor issues are generally inexpensive and easy to repair. But if your lawnmower is already experiencing mechanical problems that require significant repair costs, it may be more economical just to get a new one.

Rusted deck

If your mower’s deck is rusted, it shows deterioration. The rust is primarily due to the accumulation of damp grass clippings against the mower deck’s rear. It is not worth repairing if you see widespread rust or holes on the deck because the surrounding metal will likely rust over soon enough. Moreover, replacing the deck may be almost as much as what it would take to get a new mower.

Transmission problems

Transmission problems are the bane of all lawnmowers because they usually require high repair costs. On average, it can take around $500 to replace a mower’s transmission. Instead of spending that money on repairing an old mower, it might be better to buy a new one that is nicer and more efficient than the one you have now.

Excessive oil usage

Lawnmowers need oil to stay lubricated while running at high speeds and temperatures. A typical lawnmower will consume about an ounce of oil per cylinder per hour, according to Hunker. By now, you probably already know how much oil you need to put in your mower periodically. If that amount has been higher recently, it can signify that you need to replace it entirely.

Engine damage

A blown engine is basically the end of a mower unless you get it repaired–which is incredibly expensive. Just like transmission, replacing a mower’s engine can cost 50% of the price of a brand-new mower. So if your mower’s engine is shot, it makes more sense to replace it rather than spend all that money on repairs.


The last thing you want to see from your lawnmower is smoke. Several reasons can explain a smoking lawnmower, offers Bob Vila. If your mower emits white or blue smoke, you may have overfilled the oil or used the wrong oil entirely. Luckily, you can fix the issue by draining the oil or using the correct grade of engine oil.

If your mower produces black smoke, it may be burning too much gasoline due to a clogged air filter preventing adequate airflow in the carburetor. You can try fixing the issue by replacing the air filter or adjusting the mower’s carburetor.

If the white, blue, or black smoke persists despite trying the fixes mentioned above, your mower could be suffering from a serious problem. You are much better off buying a new mower if it’s a mechanical issue than spending money on repairs.


Rattling or clunking noises in a mower usually denote nothing good. Weird noises can mean that there are loose or dislodged parts in your mower. If the issue cannot be fixed by tightening the loose parts, it is safest to buy a new mower than to continue using it despite the noises.

If you notice one or more of these signs, it’s time to say goodbye to your trusty old mower. Check to see if you are still covered under warranty. Otherwise, start your search for a new mower.

About Julee: Julee Morrison is an experienced author with 35 years of expertise in parenting and recipes. She is the author of four cookbooks: The Instant Pot College Cookbook, The How-To Cookbook for Teens, The Complete Cookbook for Teens, and The Complete College Cookbook. Julee is passionate about baking, crystals, reading, and family. Her writing has appeared in The LA Times (Bon Jovi Obsession Goes Global), Disney's Family Fun Magazine (August 2010, July 2009, September 2008), and My Family Gave Up Television (page 92, Disney Family Fun August 2010). Her great ideas have been featured in Disney's Family Fun (Page 80, September 2008) and the Write for Charity book From the Heart (May 2010). Julee's work has also been published in Weight Watchers Magazine, All You Magazine (Jan. 2011, February 2011, June 2013), Scholastic Parent and Child Magazine (Oct. 2011), Red River Family Magazine (Jan. 2011),, and more. Notably, her article "My Toddler Stood on Elvis' Grave and Scaled Over Boulders to Get to a Dinosaur" made AP News, and "The Sly Way I Cured My Child's Lying Habit" was featured on PopSugar. When she's not writing, Julee enjoys spending time with her family and exploring new baking recipes.
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