Q: Knock sensor 2000 Chevrolet Lumina

asked by on December 04, 2016

The service engine soon light came on, so I had it checked and I was told it was the knock sensor. So I replaced it and the light still comes on after the sensor was replaced and the codes for the sensor were deleted.
My car has an automatic transmission.

Check Engine Light is on Inspection $79.99 - $89.99 Get a Quote

Hi - first task is to recheck what codes are still present that represent a "knock sensor failure". There may be an additional problem that has changed engine timing (worn timing chain for example) that is causing an engine knock (re-ignition) condition, rather than the sensor failing. I would recommend an engine inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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

What others are asking

AC off - 2011 Chevrolet Cruze

Hello. Your Chevy Cruze uses a "heated" engine thermostat (under computer control) which has caused some problems. There is a Technical Service Bulletin (301268) to address the "engine is cold" issue - software reprogramming). There are also multiple temperature sensors,...

I changed the break light switch and now I can not get the truck out of park

Hello, thank you for writing in. The vehicle may be having issues the with ABS system. Considering the timing with the brake light switch, you will want to verify that installation and make sure it is clean, dry, and tight....

Fuel pump problem

It could be a fuel pump, or a fuel pump relay issue. The fuel pumps are problematic on these Ram Diesels, and will quit with no warning. There are many aftermarket pumps that are more durable than the stock Dodge...

wont shift into 3rd gear

At this age of the car, you will likely need a transmission rebuild. The bands that wrap abound the planetary gear assembly typically crack. Of course, checking the transmission fluid level and condition of the car while running in park...

Service Engine Light is on.

Different than the Check Engine Light, the Service Engine Light is typically triggered when a predetermined service interval has been reached. There are dozens of service schedules that could be coming up including oil, transmission, battery, ignition system (spark plugs)...

Using E-85 or unleaded regular fuel.

Hello, Many of today’s engines are equipped to run on E85 fuel which is a high ethanol content fuel. The vehicle’s engine control module measures the amount of ethanol in the gasoline and adjusts the air/fuel mixture ratio on the...

Brake abs and traction control light on lost brakes today

Hello, thank you for writing in. The traction control system and the ABS work hand in hand to help keep you on the road in slick conditions. They are both monitored heavily by the computer which makes diagnostics a lot...

Check engine flashing and loss of power - 2009 Chevy Equinox

Hello. A flashing Check Engine Light is a warning that an urgent issue has occurred. A flashing Check Engine Light signifies that the computer has detected a failure that may potentially cause damage to the vehicle's emission system. Continuing to...

Trickling water noise under hood

The sound you're hearing may be caused by an exhaust leak. A small exhaust leak close to the engine makes a sound similar to what you're describing. It will normally only occur during acceleration. You may be able to pinpoint...

Related articles

A Buyer’s Guide to the 2012 Chevrolet Equinox
The The 2012 Chevrolet Equinox stands out in the small SUV class for its affordable price, its high-powered engine, and its plethora of features. While the Honda CR-V has led this class for years, the Chevrolet Equinox is positioned to...
The Best Used Cars to Buy If You Love Camping
Do Do you love camping, getting back to nature and enjoying life in the great outdoors? If you do, then you know that getting there can be half the fun, and it’s even better if you have a great ride....
The Best Used Cars to Buy for Senior Citizens
Everyone Everyone needs a way to get around. You need to get groceries, get to doctors’ appointments, visit with family and more. However, senior citizens have very different needs when it comes to buying a used car than other demographics....