Car Problem Reports

Toyota Highlander Check Engine Light Due to Hose Off of Air Filter Housing

Toyota Highlander Problem
23 Reports
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Model Years Affected: 2001, 2002, 2003

Engines Affected: 2.4L 4 Cylinder, 3.0L V6

Average Mileage: 108,430 mi (17,000 mi - 190,000 mi)


When changing the air filter, it is easy to knock off a hose on the air filter housing, which is part of the emission control system. If the vehicle is driven with this hose disconnected, the Check Engine Light will illuminate.

  • Visitor, , 3.0L V6, 71,000 mi

    I really hate this issue!! It happens most oil changes, except at the dealer, and it's a big time waster to get it resolved. I need a picture of this so I can fix it myself. Advance Auto parts store is happy to run the diagnostic and reset the CE light for me.

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  • 16camper, , 3.0L V6, 115,453 mi

    I had serviced the car (which I have been for years) check the air cleaner, then the engine light came on few days later. I brought to my Toyota dealership to see what triggered the light, they found this same hose came disconnected from the air cleaner housing. I asked how much for the repair- they smiled and said "all set" no charge.Good people.

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  • Visitor, , 3.0L V6

    reattached hose.

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  • jimchilds, , 3.0L V6, 98,500 mi

    I changed the air filter and this happened to me. A neighbor is a Toyota mechanic and told me about it when I called him about the check engine light.

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  • Visitor, , 3.0L V6, 180,000 mi

    same thing happened to me.

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  • Visitor, , 3.0L V6, 190,000 mi

    technicians repeatedly know hose loose during servicing. check hose each time it is serviced. check engine light will go off on its own in about 50 start/ stops

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  • Visitor, , 3.0L V6, 45,000 mi

    This problem has occurred twice. Once was after a regular oil change, and the second was after I replaced the air filter myself. The air filter mechanism is hard to seat.

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  • eki017, , 2.4L 4 Cylinder, 72,500 mi

    Discovered the hose was not attached after my check engine light appeared. I had gotten the air filter replaced several days before from a different shop. I was able to continue driving for a couple days until I could bring it into the shop but noticed the car lacked power.

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  • Visitor, , 3.0L V6, 114,000 mi

    Same thing others describe. Filter change with 30 point checkup. Someone replaced the air filter with wrong version. Did not latch the cleaner housing down correctly, and hose was off the back. Weird, deep throaty/gutteral sound when accelerating. Now have to reset the LED and hope that's all that went wrong.

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  • Visitor, , 2.4L 4 Cylinder

    After oil change, the check engine light came on. Hose was not connected.

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