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ENGINE OIL COOLER LINES Today s vehicles operate at higher temperatures Under hood temperatures can reach an average of 247 degrees F This places a greater demand on the electrical systems drive train components and engines as never before One of the systems utilized to handle the excess heat and prolong the life of the engine is the auxiliary oil cooler Components of this system include an oil filter adapter oil cooler lines and a heat exchanger typically found in the radiator or in front of the condenser OPERATION This system is simple in operation Heat generated from the engine during normal operation is transferred to the engine oil After passing through the oil filter hot oil is routed via the oil cooler lines to the heat exchanger Heat is removed from the oil as it passes through the heat exchanger The oil is then returned to the engine via the return oil line FAILURE Original GM engine oil cooler lines have a higher failure rate because of the materials and design utilized Oil leaks at the hose ends are common If not replaced separation of the lines from the crimped ends will occur with disastrous results up to and including severe engine damage and or failure Engine oil cooler lines are also subject to road hazards collision and debris damage ENGINE OIL COOLER LINES cont CAUSE Rubber hose ends are crimped at the fittings This results in the rubber components taking a compression set Over time and mileage usually at 50 000 miles of service the rubber hoses start to shrink under the area of the crimped ends resulting in a leak SOLUTION The answer to this problem is a DORMAN OE Solutions engine oil cooler line assembly These units are direct fit The hoses are also more resistant to compression set and resulting crimp failure which is the number one failure associated with engine oil cooler line assemblies All materials needed to complete the repair o rings and gaskets where applicable are included for trouble free installation
