Black bear tune & now Coolant leak

Across281 · Jan 22, 2020

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Letting truck warm up and then doing a pull out on the hwy now it appears I have a coolant leak.

It does not look to be leaking into oil or leaking from upper intake gasket. Could it be lower intake gasket? Praying it is not head gasket

kennythewelder · Jan 23, 2020

That looks like a head gasket, but, you need to do a pressure test. If you dont have a radiator pressure tester, go rent one @ autozone, and do a radiator pressure test. This will test the whole cooling system, and make any leak show.

454cid · Jan 23, 2020

Where's the leak? I see what looks like copper RTV on the headers.

There is no coolant in the upper intake. The lower intake will leak above the water pump to the outside.... or mostly to the outside.

Across281 · Jan 23, 2020

@454cid the leak is at the back 2 cylinders. Coolant is sitting on top of where the headers mount to the head. Coolant smell also. Could the leak be coming from back side of lower intake?

Uncle Ben · Jan 27, 2020

If it’s above the exhaust port, than it can’t be the head gasket. My guess is intake manifold gasket.

Across281 · Jan 27, 2020

I never replied back, I have not refilled coolant in over a year when I flushed and none appeared to leak out over the past 4x I drove it so it must just be a slow leak. I can live with that just going to check regularly now.

Black bear tune & now Coolant leak

Across281

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kennythewelder

Officially Retired, B31-3 (6-G) certified welder.

454cid

Sooper Pooper

Across281

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Uncle Ben

I'm Awesome

Across281

Newbie

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