Q: My 07 Lexus is350 started making a bad clicking or knocking noise this am, my friend has a pocket scanner the code is 7e8 and 7e9

asked by on

Loud clicking or knocking noise on the passenger side of the engine

My car has 220000 miles.
My car has an automatic transmission.

Hi there. Unfortunately, the pocket scanner won’t help us diagnose this clicking noise for you. In order to correctly diagnose this issue, a professional mobile mechanic would have to complete an OBD-II diagnostic test with a digital scanner that would help us determine if the noise is caused by a damaged component monitored by the ECU. In most cases however, when a loud, repetitive noise is noticed on one side of the vehicle, it can be caused by a failing serpentine belt pulley or accessory belt pulley (like an AC component for example). It is also possible that the noise is coming from the front tire on the passenger side; specifically the wheel bearing. Since there are many different possible sources of this noise, I would recommend having a professional mobile mechanic come to your location and complete a car is making a noise inspection to determine what is causing the noise and what repairs will resolve this issue.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My 07 Lexus is350 started making a bad clicking or knocking noise this am, my friend has a pocket scanner the code is 7e8 and 7e9

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: Have a 2006 Lexus IS350 with a code of P0420 saying catalyst System Efficiency Below Threshold Bank 1

Hi Phoebe. Thanks for contacting us today. When the oxygen sensors have readings that are similar to each other, it is an indication that the catalytic converter is not working as intended. If the voltage of the downstream oxygen sensor...

Q: Can a collision in the front of my car cause a mass air flow sensor to malfunction? I need to make a claim for the insurance.

Unless the sensor has been physically damaged by the accident you were in, it would be impossible to know if it was damaged by the accident or not. The MAF sensor is a common sensor to fail on these vehicles...

Q: Can the parking brake be adjusted ?

Hi there. If your Lexus has rear disk brakes, there are two different ways to adjust your brakes. One is to back up about 10 miles per hour and apply the parking brake. The other way is to remove the...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...