Skip the auto shop - Our mechanics make house calls

Q: Were is my knock sensor on my vehicle?

asked by on

Were is the knock sensor on my vehicle?

My car has 188 miles.
My car has an automatic transmission.

Hello. The location of the knock sensor would be dependent on which model of engine your 4Runner is equipped with. Knock sensors are usually bolted directly to the engine block, as they are designed to monitor and detect engine knock in the vehicle’s cylinders. If your vehicle is equipped with the 3.4L V6 engine then the knock sensors are located in the valley of the engine, beneath the intake manifold. The knock sensor for bank 1 should be easily accessible, while bank 2 will require removal of the intake. If your 4Runner is equipped with the 2.6L I4 engine then the knock sensor is located on the block, beneath the intake plenum. If you are experiencing issues with the knock sensor also keep in mind that the wiring and connector can also commonly fail and set off codes or cause problems.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Gas mileage down

First off, spark plugs are not going to affect fuel mileage. Also, how are you checking fuel mileage? If you are using the indicator on your dashboard or overhead console, this isn't perfectly accurate. The only accurate way is to...

Q: Can dual exhausts both exit on left side?

Generally, we only work with factory approved repairs. One way you might be able to seek advice would be to get an estimate from an exhaust shop. When they make an estimate have them thoroughly explain their plan for adding...

Q: Lights problem 1992 Toyota Cressida

Hello - you most likely have a bad ground, or other wiring issue with your brake light circuit. Instead of power for the brake lights flowing to the ground connection (the chassis of the car), current is flowing to other...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.