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

2004 MERCURY MARAUDER

84,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC

TRUCKWES

MEMBER
35 POSTS

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?

Jul 7, 2024 at 9:40 AM

STRAILER

✓ASE Certified Mechanic
54,832 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 enlarge)

Professional Diagram for 2CarPros Members
Click here to log in and view diagram.

Jul 8, 2024 at 11:09 AM

TRUCKWES

MEMBER
35 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.

Jul 9, 2024 at 7:06 AM

STRAILER

✓ASE Certified Mechanic
54,832 POSTS

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

Jul 9, 2024 at 9:50 AM

TRUCKWES

MEMBER
35 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

Jul 9, 2024 at 3:34 PM

STRAILER

✓ASE Certified Mechanic
54,832 POSTS

Thanks for letting us know, we are here to help, please use 2CarPros anytime.

Jul 9, 2024 at 4:01 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.