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 GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
10949255
Type Your Chevy Question Here...
GM Tech (Cam) is online now
A new question is answered every 9 seconds

I have a 2009 chev 5.3 litre. there is a knock in the bottom

Customer Question

I have a 2009 chev 5.3 litre. there is a knock in the bottom end after it warms up. Can you help..? I am a female
Submitted: 1 year ago.
Category: Chevy
Expert:  JOHN aka Eauto replied 1 year ago.

is it a loud knock?? how is the oil pressure? how many miles?

Customer: replied 1 year ago.
No it is a suttle knock you can only hear from the outside with your head around the front tires. I have 200,000km on it. It only does it when it is warmed up
Customer: replied 1 year ago.
Sorry I have good oil pressure
Expert:  JOHN aka Eauto replied 1 year ago.

have you had anyone listen to it? hoe many miles? is it loud?

Customer: replied 1 year ago.
I have answered your questions.????
Expert:  JOHN aka Eauto replied 1 year ago.

a lower end knock is generally a rod or main bearing..The only way to check is removal and tear down of the engine.. These are common for cam and lifter noises that sound lower end.. is the engine light on? any codes?

Customer: replied 1 year ago.
I would like to end this session...this has been no help
Customer: replied 1 year ago.
I sure hope you are not going to charge me $40plus for this
Expert:  BOBBYSS replied 1 year ago.

Hello, my name is***** am a different expert. Did you still want some help with this?