Coolant leak

2012 DODGE VAN
157,000 MILES • 3.6L • 6 CYL • 2WD • AUTOMATIC
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DIESELCHICK86
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I took off pretty fast to get in front of a vehicle on the highway and seen a puff of smoke come out the back of my vehicle and started smelling coolant. When I got home I popped the hood and I seen that is was wet at the rear of the engine. Can you tell me what coolant lines run back there.
Nov 4, 2020 at 6:24 AM
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KASEKENNY
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You have heater core lines and a crossover line but it could also be a head gasket. So we need to start with just testing to locate the area of the leak. Just looking for the wet area doesn't always narrow it down enough so let's pressure test the system and look for where it is dripping.

https://www.2carpros.com/articles/radiator-pressure-test

Once we know the line or specific component then we will have a better idea what we need to do to fix it. Thanks
Nov 4, 2020 at 6:40 AM
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DIESELCHICK86
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I will have to go get a pressure tester.
Nov 4, 2020 at 6:43 AM
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ASEMASTER6371
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Good morning,

At the back are the rear heater lines if you have rear heating.

https://www.2carpros.com/articles/car-is-leaking-coolant

I attached a YouTube video on the replacement of the lines.

https://www.youtube.com/watch?v=J1KkmOryVfU

I would pressure test the system to be sure they are the issue.

https://www.2carpros.com/articles/radiator-pressure-test

Roy
Nov 4, 2020 at 6:47 AM
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DIESELCHICK86
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I do have rear heat. Thank you. I will get it pressure tested to make sure that's what they are.
Nov 4, 2020 at 6:52 AM
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ASEMASTER6371
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You are welcome.

Always glad to help.

Roy
Nov 4, 2020 at 6:55 AM