Coolant leak

133,000 MILES • 6.0L • V8 • 4WD • AUTOMATIC
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EMBALMER50
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  • 1 POST
I have a coolant leak about the size of a brake line, that runs from head to head, in the top front of the engine.

I cannot find it online and it is leaking too bad to take it anywhere.

If I could just get the correct name.
Oct 1, 2017 at 11:34 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,686 POSTS
It looks like it is coming out of the water pump gasket. You must start by draining the coolant.

Here is a guide and some diagrams (below) to help you get the problem fixed:

https://www.2carpros.com/articles/water-pump-replacement

and you will need to take the fan clutch off.

https://youtu.be/N_-MLVlBHk8

Below are some diagrams on how it is on your car.

Here is a pump on Amazon for $91.00:

https://www.amazon.com/ACDelco-252-845-Professional-Water-Pump/dp/B001KSG24Y/ref=sr_1_2?ie=UTF8&qid=1506977984&sr=8-2&keywords=2003+chevy+silverado+water+pump

Please let us know what happens and upload pictures or videos of the problem.

Cheers, Ken
Oct 2, 2017 at 7:04 AM
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