My car started overheating this morning, there was a leak from the hose that connects to the transmission oil cooler. How do I go about fixing this? I repaired the hose, but my car is still overheating. In the past month during the cold weather, my car is a hard time producing heat. If anyone can help, it would be much appreciated.
My car started overheating this morning, there was a leak from the hose that connects to the transmission oil cooler.
The transmission oil cooler and the cooling system are separate circuits.
repaired the hose, but my car is still overheating. In the past month during the cold weather, my car is a hard time producing heat.
That means there's air in your cooling system. The heater works when hot coolant is circulated through the heater core, and only coolant. Hot air does nothing.
Make sure the car has sat for a few hours, preferably with the hood open to allow residual heat to escape more efficiently. It'll be even better if you can leave it overnight.
Get a set of ramps or park your car so that it's facing uphill. Pour coolant into your radiator so it's filled up. Start the car, put the heater on max heat, and full power. The level in the radiator will "burp" and decline slightly as coolant starts getting into the heater core. When it doesn't burp anymore, top off the coolant and fill the overflow to the "hot" level. Reach into the vehicle, the heater should be hot if the heater core is working properly.
Then, identify where your leak is. They make UV dye that's compatible with antifreeze, get it and funky sunglasses so you can possibly identify the leak. Another option is to use a coolant pressure tester gauge. Read in your owner's manual the proper pressure reading for coolant, and pump it up to that pressure. Wait 15 minutes. If it noticeably declines after 15 minutes, you have a leak somewhere. It will be either on the ground or inside the engine. The head gasket is leaking if there's no evidence of spillage on the outside of the car, and there's a noticeable pressure drop.
