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Parked in the snow and let it idle for a while to warm up. When I backed out, I noticed a bunch of bright yellow/green spots near the rear center of the truck. Maybe just slightly forward of the rear axle. Some were about double the size of a quarter but hadn't melted the snow. In one spot, it seemed to have melted through the snow (like the liquid was warm).
The color seems like coolant. Are there coolant lines that go to the back (for heat maybe)?
It also looks like I've got a smaller leak of the same fluid just behind the engine based on the snow spots. Front spot, front of truck at towards top of photo.
Rear spots, front of truck at towards top of photo.
Last edited by djkronik57; Jan 5, 2018 at 01:46 PM.
Yeah I think it is coolant reading more about it. They probably switched it to the non-DexCool (yellow) when I had the engine replaced.
This section from the manual makes it kind of seem like they might be easy to replace? Joints and quick disconnects? Anyone know how much replacing these lines is? I know the refrigerant lines are $$$.
Two heater lines, supply and return, connect the heater core in the auxiliary climate control assembly to the engine
cooling system. The heater lines are routed along the rear crossmember, around the right rear wheel arch and along the
RH underside of the vehicle. The heater lines are connected to the engine cooling system at the rear of the engine
compartment. The heater lines consist of sections of aluminum alloy pipes, insulated with foam rubber, which are
connected together with rubber hose joints. Quick release fittings connect the heater lines to the engine cooling system.
Quick update, it is NOT coolant leaking. I checked my coolant expansion tank, my coolant is indeed orange.
I did also notice some of the same color spotting underneath where two neighbors' cars were parked for the storm as well (both late model Jeep Grand Cherokees). Both were parked since the snow, so it had to have dripped from under the car. Maybe it's not something leaking from my truck at all? So strange.
Any other theories welcome, I guess I'll just keep an eye on fluids for now.
Well, solved it. I noticed almost all cars were leaving the spots, so I figured it couldn't be something unique to mine. Turns out, it's normal where the snow touches the exhaust. For some reason, it causes neon colored snow. So no need to panic.
Leaking something yellow from the rear?
