Engine failure can manifest in a variety of ways. More obvious engine failure warning signs can include the illumination of certain Subaru warning lights or onboard diagnostic messages. You may also notice drivability issues stemming from overheating or inadequate oil pressure. Power loss, ominous noises and discolored fluids are other signs to book Subaru engine service in Nampa.
Typically, engines fail due to improper maintenance. Neglecting to perform routine Subaru oil changes or coolant flushes can damage internal engine parts relying on proper lubrication and cooling. Another factor can be potentially damaging habits such as regularly revving a cold engine to redline.
Engine failure can often be traced back to three causes: inadequate lubrication, ineffective cooling and detonation.
Lubrication. Lubrication issues typically stem from a lack of oil. Bearings — small metal sleeves used to enable smooth rotational movement between two internal engine parts — only work as intended when properly lubricated. Without enough oil, the parts make contact, and the resulting friction can cause quick failure.
Cooling. Coolant flows through the engine to keep important Subaru parts from overheating. Over time, coolant loses it potency as a temperature regulator. As engine temperatures rise, internal components are subjected to extreme mechanical stresses, and parts like the Subaru head gasket can fail.
Detonation. Detonation refers to when an engine isn’t igniting its air/fuel mixture at the appropriate time. If ignition occurs even a fraction of a second too soon or too late, the result is a less controlled burn that can spike pressure in the engine cylinders. Over time, the effects of this can lead to serious internal engine damage.
