How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask sprinkles08 Your Own Question
sprinkles08
sprinkles08, ASE Certified Technician
Category: Saturn
Satisfied Customers: 21570
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
9825021
Type Your Saturn Question Here...
sprinkles08 is online now
A new question is answered every 9 seconds

Saturn ION: 2004 Saturn Ion with engine knock on top of intake?

Customer Question

2004 Saturn Ion with engine knock on top of intake? Do you know the history of the severity?
Submitted: 1 year ago.
Category: Saturn
Expert:  sprinkles08 replied 1 year ago.
Hello and welcome to JustAnswer!
A knocking noise in the intake is often caused by a valvetrain issue. The engine would most likely idle poorly if that's the case. An exhaust valve that isn't opening or an intake valve that isn't fully closing will cause compression to enter into the intake at every power stroke on the affected cylinder and cause a knocking noise in the intake. If the noise is accompanied by a rough idle, lack of power, etc then I would recommend removing the valve cover for an inspection of the valvetrain.

Related Saturn Questions