Antifreeze is leaking below the thermostat housing

ROBERT LOUDERMILK SR.

MEMBER
2003 FORD EXPLORER
4.6L
V8
4WD
AUTOMATIC
140,000 MILES

The thermostat gasket is not leaking. I don't know the name of the part where the housing is mounted where the leak is. Need to know how to remove and repair. Thanks

Thursday, October 24th, 2019 AT 9:14 AM

3 Replies

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello,

This part is your vehicle's water pump. It is fairly easy to replace. In the diagrams down below I have included the directions, from the vehicle manufacturer for the removal and installation of your vehicle's water pump, an exploded diagram of your vehicle's cooling system, and the Original Equipment Manufacturer [OEM] part number for the water pump in the diagrams down below. Please go through these guides and get back to us with how everything turns out.

Thanks,
Alex
2CarPros

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Thursday, October 24th, 2019 AT 10:57 AM

ROBERT LOUDERMILK SR.

MEMBER
12 POSTS

I will have to look at it more closely. Thanks. I will get back with you.

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Thursday, October 24th, 2019 AT 1:59 PM

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello again,

I know that it is your water pump that is leaking because I have a 4.6L engine in my Mustang. The water pump utilizes a rubber o-ring as it's gasket, which has probably failed. You can replace the rubber o-ring [recommended], or use high temperature RTV as a gasket instead. Please get back to us with what you decide to do and how it turns out.

Thanks,
Alex
2CarPros

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Thursday, October 24th, 2019 AT 6:08 PM