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Tahoe & Suburban The power, space, and brutal towing ability make the Tahoe and its longer sibling, the Suburban, arguably the best full size SUV's on the market today.

2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

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Old 09-13-2009, 08:10 PM
CF Beginner
Join Date: Sep 2009
Posts: 6
Default Engine Coolant Block Plugs

I'm trying to figure out where the engine block plugs that drain coolant are located on my '03 Suburban.

Does anyone know if the coolant plug is the big bronze colored setscrew above the oil filter in the picture below, or is it the smaller silver colored screw below it in its 5 o'clock position?

Click the image to open in full size.

There is another silver plug on the same side, but in the very front of the engine below the power steering reservoir.

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All of these screws are extremely tight and hard to remove.

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Old 09-18-2009, 12:52 AM
OmarR's Avatar
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Join Date: Mar 2007
Posts: 14

the big bronze one is it. I have never been able to spot/identify the ones in front.
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Old 09-20-2009, 08:18 PM
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Join Date: Sep 2009
Posts: 6

Thanks OmarR. I changed the coolant this afternoon. The bronze one was it. It took a 17mm allen wrench to loosen the screw, and dumped about 5 quarts of fluid after it was removed. I'm sure there is a block plug on the passenger side of the engine too, but just couldn't see, or find it due to the starter and all the other stuff on that side of the engine.
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Old 09-20-2009, 08:18 PM

2000, 2001, allen, block, carlo, chevy, coolant, drain, engine, monte, pics, plug, plugs, size, suburban, tracker, wrench

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