One of the greatest frustrations of any repair is a repair that does not solve a problem…or at least solve it completely. Second to that frustration is when you hear a hum-like sound coming from your Toyota's front end, and the dealership garage either tells you they hear and feel nothing or says something like, "That's normal for a Toyota."
Common Toyota Tacoma, Tundra, and 4Runner Problem
According to a recent Royalty Auto Service YouTube channel episode, the Toyota Tacoma, Tundra, and 4Runner all share a common problem that sometimes confuses both mechanics and their customers―a constant or alternating hum with vibration that can be felt through the wheel or floorboard that manifests at particular speeds…and then goes away at a different speed.
Related article: Toyota Tacoma Problem That Will Give You the Shakes
This problem was addressed by the host with a previous repair on a 2015 Tacoma with front end issues that needed major front end repair. After the repairs were completed, the Tacoma operated significantly better; however, the owner noticed a slight hum-like sound with some vibration from the repaired Toyota's front end.
Looking a little deeper into what could be the cause of the noise, the host discovered this is a situation familiar to some years of Toyota models due to one of the most common modifications owners like to do with their Tacoma, Tundra, and 4Runners―put on bigger wheels with a lift kit.
At least one post comment supports this view of what can happen when Toyota owners DIY modify their vehicles:
In other words, you can expect problems to eventually develop when you change the geometry of the axle with the differential that affects the bearing between the two, which is why having your vehicle lifted is one of those jobs best left to a garage that specializes in ensuring that everything is aligned precisely right―especially with a vehicle that is going to see some off-road adventuring.
Follow along with the host as he shows how the hum-vibration was diagnosed and repaired on a 2015 Toyota Tacoma with 4WD. In the video, you will see the following:
- The importance of using a vibration analyzer to pinpoint a front-end problem.
- The recommended kit that replaces the problematic axle bearing with a bushing that is a permanent fix.
- How to remove the old bearing and seal and the tricks to doing it and not cause additional problems.
- How to install the replacement bushing and new oil seal.
- The results of a successful repair and retest for front-end vibration elimination.
Related article: This Is a Story That Breaks My Heart That a Very Good Toyota Rav4 Customer Had To Go Through
This Repair Fixes A Huge Issue With Lots Of Toyotas On The Road Today!
For additional articles related to Toyota repairs, check out these recommended articles:
- Toyota Tacoma Repair Scam… or Not?
- Toyota RAV4 Diagnosis and Fix You Can Do
- "Replace This Tensioner Pulley Now, or You Will Do It Later Anyway...When The Engine Blows" ―Toyota Warning
Timothy Boyer is an automotive reporter based in Cincinnati who currently researches and works on restoring older vehicles with engine modifications for improved performance. He also reports on modern cars (including EVs) with a focus on DIY mechanics, buying and using tools, and other related topical automotive repair news. Follow Tim on Twitter at @TimBoyerWrites as well as on Facebook and his automotive blog "Zen and the Art of DIY Car Repair" for useful daily news and topics related to new and used cars and trucks.
Image Source: Deposit Photos