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Knock sensor is designed to detect when the combustion in car is not being properly controlled.A knock sensor uses an internal element that is extremely sensitive to vibration and will detect when the pressure wave from the combustion hits the cylinder wall before it is supposed to.When the sensor detects incorrect noise from internals of the motor it will retard the timing in order to protect the engine.The sensor has been designed to act as if mechanic was listening to the engine and keeping an eye on the things for the driver.
Notice :
Please find the amazon fitment on the top of the page,enter your vehicle information to check if the item fit your vehicle
Fitment:
1985-1988 Chevy Monte
1987-1999Chevy P20 P30
1987-1991 Chevy R1500 R2500 R3500
1988-1993 Chevy S10
1992-1996 Chevy Suburban C1500 C2500
1992-1996 Chevy Suburban K1500 K2500
1986-1995 Chevy Astro
1987-1994 Chevy Blazer
1985-1986 Chevy C10 C20
1988-2000 Chevy C1500 C2500 C3500
1987-1989 Chevy Camaro
1985-1993 Chevy Caprice
1987-1989 Chevy Corvette
1985-1987 Chevy El Camino
1996-2002 Chevy Express 1500 2500 3500
1985 Chevy Impala
1985-1986 Chevy K10 K20
1988-2000Chevy K1500 K2500 K3500
1992-1993 Buick Roadmaster
1990-1992 Cadillac Brougham
1999-2000 Cadillac Escalade
Package Including
one knock sensor
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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