Some Of The Signs That Your Coolant Is Leaking. It is extremely important to ensure that your engine operates at the right temperature, or else it will overheat. You need to add some coolant to your engine in order to keep your engine at normal temperature. If your engine coolant is leaking, your vehicle will run normally until the level of the coolant has dropped too low – the engine will then overheat. We’ll show you some of the signs that the coolant is leaking from your engine. It may be a sign that coolant may have leaked into your engine, if you see that there is a dried, crusty-brown residue or brown bubbles above the oil level line on the dipstick. It may even resemble chocolate milk. If you see that there is white exhaust smoke that smells kind of sweet, then it most likely means that your coolant is leaking. You may realize that the dipstick oil level has risen, which may signify that a lot of coolant has leaked into the crankcase. Shut your engine off and allow it to sit there for approximately one or two hours. Then, unthread the drain plug and catch the liquid with a plastic bottle or a clear glass. Antifreeze and water usually puddle at the bottom of the oil pan. When you collect a couple ounces of fluid, retighten the drain and then inspect the fluid you collected, for glycol and water. It should look something like mayonnaise and you may be able to small the sweet odor of the antifreeze. Have your engine serviced by professionals immediately, if you believe you have detected coolant in your motor oil. If you are looking for small engine repair services in Ottawa, mobile car battery boosting, lawn mower and lawn tractor repairs and tune-ups, or snow blower repairs then give us a call to book your mobile small engine repair today. We fix, repair, and tune-up small engines such as lawn mowers and snow blowers. The best part is that we come to you so no more waiting in line or traveling back and forth to fix your small engine equipment.