Skip the auto shop - Our mechanics make house calls

Q: P0328 code - 2008 Hyundai Accent

asked by on

Considering purchasing this one owner used vehicle, had it checked at Goodyear. Mechanic says good car with plenty of life left only coffee was P0328, check engine light was not on. He says no big deal, don't worry about it. But as a non mechanical person reading about this knock sensor I am a little worried about dropping $4000 on a no warranty car. What do you think?

My car has 133000 miles.
My car has an automatic transmission.

A: Hello. P0328 is the code for a knock sensor...

Hello. P0328 is the code for a knock sensor. If the knock sensor fails, or there is an issue with the wiring, the code may be set off. You also mention that the Check Engine Light was not on. If the Check Engine Light was not on, but a trouble code was still found, then either the code is pending, and not yet verified, or the computer may be defective. It is more likely that the knock sensor just needs to be replaced, however, only a thorough diagnosis and service will determine what is needed. A problem with the knock sensor could mean performance issues with the vehicle, such as loss of power or trouble accelerating. At the very least, I would test drive the vehicle or have another expert give the car a pre-purchase inspection for a second opinion.

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

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: Check Engine Light is on - code P0328

Hi there. A failure of the engine knock sensor is a somewhat risky issue with a turbocharged engine such as yours. Turbocharging increases cylinder pressure during operation and makes the engine more likely to experience "pre-detention" or knocking. The knock...

Q: I already agreed with an owner of 2008 limited edition v6 Prado. Average fuel consumption and mileage are different

Hey there. The fuel usage of 26L per 100km sounds like it is using too much fuel, or there is a problem with the display. I would suggest having a mechanic inspect the car first before you decide to purchase...

Q: Clock not working

The clock fuse would need to be checked first. If that is okay, then the clock should be checked to make sure that it has a proper supply of power and grounds. If that is okay, then a replacement clock...

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 Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...