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Ask Jared D Your Own Question
Jared D
Jared D, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1442
Experience:  Shop Supervisor at County Fleet
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Overheating. Coolant leak, Unsure about the age of hoses.

Customer Question

Overheating. Coolant leak
JA: How old are the hoses? And have you tested the actual mix of your coolant?
Customer: Unsure about the age of hoses. Just checked the coolant level. It's very low. Can see fluid puddle under front passenger side.
JA: What is the model/year of your Chevy?
Customer: 2004
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: Haven't tried anything yet. Thinking of adding coolant myself
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 29 days ago.
Category: Chevy
Expert:  Jared D replied 29 days ago.

Hi,

What model is your chevy?

Customer: replied 29 days ago.
2004 Tahoe
Expert:  Jared D replied 29 days ago.

How far back is the puddle on the passenger side? Near the engine or under the passenger seat?

Do you see any fluid inside the vehicle?

Customer: replied 29 days ago.
Near the engine. I see very little fluid inside the reservoir.
Expert:  Jared D replied 29 days ago.

On the passenger side of the engine the parts that can leak coolant are the heater hoses and a freeze plug.

Heater hoses will occasionally rupture and leak right near the firewall.

Freeze plugs are not nearly as likely to leak, but it's possible. They usually only corrode through if there has been very little coolant and too much water used in the cooling system.

Have you attempted to add coolant to the system to see if it runs back out somewhere?

Customer: replied 29 days ago.
I have not tried adding coolant yet. That was my next step. Is there a specific type of coolant that I should get? Or are they all the same?
Expert:  Jared D replied 29 days ago.

For the most part they are all the same or very similar these days. Your vehicle should use a DEXCOOL compatible coolant, but really any long life universal coolant will work. There's no need to pay extra for the fancy DEXCOOL brand name.

Customer: replied 29 days ago.
Great. Thanks for your help!
Expert:  Jared D replied 29 days ago.

Please let me know if you need additional info.

Expert:  Jared D replied 29 days ago.

I'd be happy to help identify the leaking part if you are able to see where it seems to be coming from after you add to it.

Customer: replied 29 days ago.
Great. I will get back to you on that.
Expert:  Jared D replied 29 days ago.

Sounds good.

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