Jon Mark
Junior Member
2009 4.7 liter 1500.
Dirty milkshake like oil in my coolant reservoir, however when I drained my rad thru the petcock it drained clean. In the picture you can see the pan on the left is milky - dirty from my reservoir and the pan on the left is from the petcock. Clearly a difference. The picture on the left does not truly show how dirty the reservoir is
I drained and flushed the reservoir and rad, but with a day the coolant reservoir was dirty again.
I even did a head gasket test with the blue liquid dye and it did NOT indicated any leaks
This problem has existed for years, and has been running fine, but it's starting to bother me so I need help.
What else could it be? PCV? No engine cooler on this 4th gen. Any other ideas?
Thanks
Dirty milkshake like oil in my coolant reservoir, however when I drained my rad thru the petcock it drained clean. In the picture you can see the pan on the left is milky - dirty from my reservoir and the pan on the left is from the petcock. Clearly a difference. The picture on the left does not truly show how dirty the reservoir is
I drained and flushed the reservoir and rad, but with a day the coolant reservoir was dirty again.
I even did a head gasket test with the blue liquid dye and it did NOT indicated any leaks
This problem has existed for years, and has been running fine, but it's starting to bother me so I need help.
What else could it be? PCV? No engine cooler on this 4th gen. Any other ideas?
Thanks