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Power Strokes
7.3 Tech
Oil water coolant or fuel?
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[QUOTE="Brad.S.19, post: 1367558, member: 12605"] Bad injector cups, Check the overflow for diesel as the fuel system operates at a higher pressure than the cooling. Get a cooling system pressurization unit, clean all the injector bores really well no oil or fuel as it makes the test more difficult. pressurize the system to 12-15 pounds and see if coolant appears in the suspected cups but I would check them all. It is hard to see have a decent light source if nothing comes of it pull a coolant sample and have it tested. If you pull a sample let it sit over night and see if any separation occurs. [/QUOTE]
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Oil water coolant or fuel?
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