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I have a bad knock in my 09 cad engine that last for a mile…

Customer Question
I have a bad...

I have a bad knock in my 09 cad engine that last for a mile or so worse in cold weather.

Mechanic's Assistant: How many miles are on the car? Is it an automatic or a manual transmission?

77690

Mechanic's Assistant: What is the model of your '09 Cadillac?

Escallade

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

No

Submitted: 7 months ago.Category: Cadillac
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Answered in 2 hours by:
1/19/2018
Cadillac Mechanic: Gm Tech (Cam), Cadillac Mechanic replied 7 months ago
Gm Tech (Cam)
Gm Tech (Cam), Cadillac Mechanic
Category: Cadillac
Satisfied Customers: 30,420
Experience: GM Grand Master Technician 2007. 14 years experience.
Verified

Hello there, I am Cam.

I am Licensed technician at a GM dealership with more than 16 years experience. 
Like you, I am a user of this website and as such, any billing questions should be sent to customer service.

I ask that you please provide details and communicate with me so we can make your experience here worth 5 stars! I am around most days but not every minute of every day. If you reply while I am offline, I will respond when I am next online.

is the check engine light on?

Is it flashing?

Is there metal flakes in the oil?

Does it stop after some time?

is there anything that makes it worse or better?

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Customer reply replied 7 months ago
No I'm not paying another 26.00 to talk to you .If I have to do that I what my money back.
Cadillac Mechanic: Gm Tech (Cam), Cadillac Mechanic replied 7 months ago

First off that is generated by the site, not me.

Second we can chat like this as is, no additional fees. If you are looking to get the phone call at no cost then I am sorry the site will not allow that.

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Customer reply replied 7 months ago
I told you whats wrong the red light not on nothing in the oil it makes this noise when the engine is cold worse in cold weather last about two miles.check. engine light not on
Cadillac Mechanic: Gm Tech (Cam), Cadillac Mechanic replied 7 months ago

You did not mention weather it goes away or not. If it does then its either a lifter or piston slap, if it does not, then its a bearing issue.

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Customer reply replied 7 months ago
The noise goes away after about two miles it doesn't mater if it is summer or winter its just louder in the cold weather
Cadillac Mechanic: Gm Tech (Cam), Cadillac Mechanic replied 7 months ago

Is this the 6.2L engine?

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Gm Tech (Cam)
Gm Tech (Cam)
Gm Tech (Cam), Cadillac Mechanic
Category: Cadillac
Satisfied Customers: 30,420
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Experience: GM Grand Master Technician 2007. 14 years experience.

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