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I’ve searched the internet high and low on this issue. 2011 Silverado 5.3 lc9. Recently replaced intake gasket, valve cover gaskets, oil pan gasket, oil cooler block gasket, pickup tube oring. The pan gasket was bad and that fixed my oil leak. I relize none of that has anything to do with the coolant leak. 
 

Now I have a leak that’s like an orange mud color on the passenger side by the motor mount. Which I’ve recently found out to be the motor mount. They are filled with a glycol hydraulic oil. I keep a stainless pan under the truck when I’m not driving it so it don’t leak on my driveway. My truck has been sitting since last Thursday in the driveway and the leak from the motor mount is present on the pan. However besides that I have a very small coolant leak. It drips down from above the starter and leaks onto the starter bolt. It had about four drops of coolant on that pan today followed by a small trail from the starter down the side of the oil pan. Upon inspection there is no visible leaks from the head area or the freeze plug in the back of the head. Nor do the coolant lines that go into the firewall seem to have any leaking. My truck hasn’t been drove in almost a week or started. There was nothing on that pan yesterday. I’m completely stumped and trying to get these leaks fixed. The motor mounts I can’t believe are still leaking. The passenger one has been leaking for a year and still leaking. Not really concerned with that due to the cost of replacement poly motor mounts. 
 

Any help is appreciated. Thank you. 
 

 

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