I have 02 sentra ser uses water sometimes and somtimes knot no water in oil dont overheat cant find a leaking hose what else could it be
Dec 27, 2015 at 11:56 PM
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CARADIODOC
✓Experienced Mechanic
34,407 POSTS
Best suspect is a leaking cylinder head gasket. One test is to add a small bottle of dark purple dye to the coolant, then check a day later with a black light. The dye will show up as a bright yellow stain that you can follow back to the source. If a head gasket is leaking, you'll find the dye inside the tail pipe.