Question about 1996 Mercury Grand Marquis

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Intake heater hose leak

Behind the water pump on top of the motor, the hose is leaking antifreeze on the motor.
do i have to remove everything on the top of the motor?
what type of hose is it?

96 grand marquis LS 4.6 lt w/air

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  • Anonymous Mar 28, 2014

    need to move upper intake to get to the hose that comes from the water pump



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U sure do. not to hard to do be sure to replace gaskets and knowing if u have a dorman intake or stok helps gaskets are different most part stores will have to order the dorman gaskets. and DO NOT OVERTHIGHTEN !!!!!

Posted on Jan 16, 2009


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I will like to know if the antifreeze leak could be from the water pump if the leak comes from the bottom of the car and not from the radiator

ALL antifreeze leaks will be seen coming from the bottom of the car. Yes, it COULD becoming from the water pump. But then again, it could be coming from an intake manifold gasket, a heater hose, a throttle-body heater hose, a freeze plug, a timing cover, a heater control valve, etc..
To find out where it is leaking from, you must follow the antifreeze trail UP from where you see it leaking. Antifreeze leaks ALLWAYS travel downhill. Sometimes they can be deceiving also. I have seen intake manifold leaks at the front of the engine run all the way to the back of the engine and make it look like a rear freeze plug is leaking. Again, you must follow the trail to find the actual source.

Jan 03, 2012 | Cars & Trucks

1 Answer

I have a 2000 Escalade and it's leaking a bit of antifreeze and I can't visually see where it's coming from but seems to be from the front end of the motor. It's not the radiator or any of the main v

I would take a look at the water pump. There is a weep hole on the water pump to indicate if the seals are going bad inside the water pump. This hole is located on the top of the water pump where the pulley mounts to it. If this is not the problem, then it could be a number of other problems.

I would check the following items, which I have listed in sequence of cost to repair.

1. check hoses and clamps, if leaking you should see areas that have build up of dried antifreeze.
2. check thermostat housing on top of intake where upper radiator hose connects to engine.
3. verify radiator is not leaking
4. intake gasket leaking
5. head gasket leaking

Dec 01, 2011 | 2000 Cadillac Escalade

1 Answer

My 1999 blazer is leaking antifreeze. can't really tell from where but it does not always leak. most of the time it is over the weekend when I am not driving it.

You can buy or possibly rent a coolant system tester which pumps air into it to help locate leaks. Very simple to use. You just remove your radiator cap and replace it with the tester and pump it up to the PSI listed on your radiator cap and watch for leaks. I would pay close attention to the water pump and intake manifold gaskets. It could be something as simple as a loose radiator hose clamp. It is common for intake manifolds to leak and they expand when hot and contract when cool so the leak is more noticable after sitting. Look on top of the engine around your intake manifold and your heater hose for coolant or a chalky like residue which can form from coolant leaking. Your water pump has what is called a weep hole on it which will be located behind the pulley close to the shaft. You may need to use a mirror to see it. If coolant is leaking out of it the water pump will need replaced.

Apr 22, 2011 | 1999 Chevrolet Blazer

1 Answer

I am seeing water behind the pump on the top of the motor in the v under all the fuel injection / intake is that normal for water pump to leak there if its bad?

its not normal. the water pump will leak in front, not back. There is a pipe and hose down in the VEE that can leak. If the pipe is bad, you will need to remove the pump to replace it. The intake manifold will need to come off, to replace the pipe/ hose. the hose connects a pipe behind the water pump to a pipe at the rear of the block to a heater hose.

Dec 12, 2010 | 2000 Ford Expedition

1 Answer

My truck just started blowing antifreeze from the right side of the motor under the alternator i pulled the brackets off the front and the water pump but i could not locate where it was coming from what...

If that is a 318 or 360 V8 check the small hose from water pump to the intake manifold they had a habit of developing a leak and it can spray over towards the alternator.
it is a short L shape hose from water pump to intake manifold.
Also check heater hose under the alternator for leaks or cracks.

Nov 14, 2010 | 1999 Dodge Ram

1 Answer

Top right front of the engine is leaking antifreeze but it is not the hose or water pump.

gasket from-[intake manifold -water pump]also check the heater hose connection on the intake manifold has a tendency to leak

Feb 20, 2010 | 1996 Chevrolet Blazer

1 Answer

My 2001 ford F150 is leaking water from above the trans

First off, is this water or antifreeze? If it's water it could be coming from the heat/air conditioning. If it's antifreeze, it's probably either a heater hose or the back of the intake manifold.

Dec 27, 2009 | 2001 Ford F150 Styleside SuperCrew

2 Answers

My 1999 chevy tahoe is leaking antifreeze. I

it could but- check passenger side front where heater core line go into manifold right behind alternator the hose line is connected by a press clip into an alloy fitting this fitting gets eaten away by anti freeze and hose angle pulls back on fitting the part is $18 at dealer and is screwed into manifold use caution if ur r going to replace at very edge of aluminum manifold---and check ur water pump bolts the 2 longer ones should have a lock sealant on them they bolt in thru a water jacket

Oct 24, 2009 | Chevrolet Tahoe Cars & Trucks

1 Answer

Heater hose or intake hose

You just have to find the other end of the hose and change it, or have a shop do it. It will not be very expensive, since it will be easy for them. You will have to remove a few things if they are in your way, but mostly can be changed with components still on motor. You should also check all hoses including vacuum hoses, your belts, etc., because if the car has not had regular maintenence, you will have more problems soon. Hope this helps, Rick

Apr 14, 2009 | 1996 Mercury Grand Marquis

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