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    I've noticed a small leak under my 2004 Ford Territory near the back wall behind the engine, what could be causing this?

    Asked by Jennifer

    Hi there, I have a 2004 Ford Territory and I've noticed a small leak under the car near the back wall behind the engine. I see a hose that looks like it needs replacing, but what else could cause the problem around that area?

    Answered by CarsGuide

    7 Feb 2023 David Morley

    The first thing to ascertain is what the fluid is. Is it coolant, fuel, oil or even brake fluid? All these fluids have different ways of leaking, so make sure you know what you’re dealing with. Also, don’t rely on the location of the fluid on the ground as a means of diagnosing the cause. Leaks can start in one place but appear elsewhere as they work their way along wiring, pipes, chassis rails and plenty more before they actually make it to the ground.

    Meantime, if the leak is coolant and is actually coming from the back of the engine, there are a few likely culprits. There are heater hoses that run in this area and have been known to leak, as well as a welch plug that can corrode and cause a leak in this area. Other known coolant leak-points in the Territory include the radiator and the O-ring seal at the back of the water pump. If you’re really unlucky, the leak could also be from a head gasket. Have the car checked out by a mechanic, because coolant leaks only ever really get bigger over time, never smaller.

    Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.

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