![]() Hi AllI have a 2011 Chevy Cruze and I have an engine oil cooler leak. You don't block them, need a hose to bypass them, try this with quick couplers. I used to curse and swear at those old two-cycle. But you know its not working if not getting any heat, Plugged heater cores are becoming quite the problem today. Ha, now have to check my Cruze for a heater core bypass. Still using block drain plugs, but can't get at them with that transaxle in the way. Key to a good cooling engine flush was getting at the block drain plugs. The temperatures you're seeing on the digital readout are ok as long as they go down when the engine is under load and up when it's not under load. Use to repair my condenser, evaporators, heater cores, and radiators, now I have to get out my credit card. The gage is computer controlled and as long as the car is running in the 190 to 240 range the needle won't move. Generally rig up an air compressor to the inlet, block the outlet, and check for air bubbles in the coolant, a lot more inconvenient since they elected to dump the radiator cap, but should see bubbles in the recovery tank with the cap removed. Robby brings up a good point with AT cooling, use to have two radiator repair shops in town that went bankrupt now that plastic and aluminum replaced copper and brass. That might not be oil but instead transmission fluid. This is starting to ring some bells, use to add a safety bypass valve to prevent this, don't recall seeing one on the Cruze. Bad head gasket and/or warped head and/or cracked block and/or someone dumped oil in radiator. One possible cause is that the heater core is now a very important part of the cooling system. One detail missing from this story is whether the engine was permitted to overheat at any time. #2 Requires a radiator replacement and a thourough flushing of the cooling system and the trans fluid restored to the correct level after being certain there is no reverse intermix.Ĭoolant in engine oil looks like a chocolat milkshake.Ĭoolant intermixed with ATF looks like a strawberry milkshake.ĪTF intermixed in the radiator looks like a strawberry colored oil slick. ![]() The second one is to get any remaining intermix out of the oil that was trapped in the various passages during the repair. #1 Generally requires a head gasket and two oil changes.one immediatly after the repair and the second one within 50 miles of the repair. Hello I have a 2012 Chevy Cruze 1. In this case, the trans fluid, which operates at a higher pressure than the cooling system, migrates into the coolant.hence, 'Oil in Coolant' 1) Install the oil pressure indicator switch to the oil cooler. 24) Remove the oil pressure indicator switch from the oil cooler. ![]() Coolant intermixed with engine oil is usually a failed head gasket.not at all uncommon on engines using a cast iron block with a aluminum head.īut I am reading your question as 'Oil in Coolant'.if that is the question, then you very likely have a failed transmission oil cooler, which is located inside the radiator. 23) Remove the oil cooler (1) in compound with the oil cooler gasket (2) and the seal ring (3).
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