Coolant hose leak, do I need a diagram to trace the hose?

TRUCKWES

MEMBER
2004 MERCURY MARAUDER
4.6L
V8
2WD
AUTOMATIC
84,000 MILES

Coolant hose leak. A coolant hose from the intake manifold that runs from the intake to the back of the engine. Do I need a diagram to trace the hose?

Sunday, July 7th, 2024 AT 9:40 AM

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
46,719 POSTS

I am not sure what you are talking about, but I can tell you there is a metal heater hose that is connected to the rear of the water pump that can rust out and leak from under the exhaust manifold. please go over this guide to find the leak:

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

Here are images of the cooling system and where it could be leaking from. Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.

Images (Click to make bigger)

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Monday, July 8th, 2024 AT 11:09 AM

TRUCKWES

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25 POSTS

Hello Ken I gave you the wrong information. It is a small coolant hose. From throttle or plenum. It runs in back on left side engine. 305 horse power engine. 4 valve per cylinder.

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Tuesday, July 9th, 2024 AT 7:06 AM

KEN L

MASTER CERTIFIED MECHANIC
46,719 POSTS

This is what they show can you please upload an image of the hose in question?

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Tuesday, July 9th, 2024 AT 9:50 AM

TRUCKWES

MEMBER
25 POSTS

Hi Ken, I replaced the hose. It joins y tube connected to the heater hose in back of engine. The hose cost $23. PS: I do not know how to add an image or video. Thank you

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Tuesday, July 9th, 2024 AT 3:34 PM

KEN L