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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15181
Experience:  GM Grand Master Technician 2007. 14 years experience.
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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: 10 months ago.
Category: Chevy
Expert:  JOHN aka Eauto replied 10 months ago.

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

Customer: replied 10 months 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 10 months ago.
Sorry I have good oil pressure
Expert:  JOHN aka Eauto replied 10 months ago.

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

Customer: replied 10 months ago.
I have answered your questions.????
Expert:  JOHN aka Eauto replied 10 months 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 10 months ago.
I would like to end this session...this has been no help
Customer: replied 10 months ago.
I sure hope you are not going to charge me $40plus for this
Expert:  BOBBYSS replied 10 months ago.

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