Question about 2001 Jeep Cherokee

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Water is suddenly leaking from tube-like hole @ back of engine.

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Have your mechanic change the corks,they are at the back of your engine on the block.

Posted on Apr 28, 2010

Testimonial: "Thank you 4 the info. It appears you know exactly what I was speaking of. I will have it chkd immediately."

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I need to know what the pipe is called that the lower rad hose hooks up to at the back of the 3.0L automatic


its the water pump inlet tube , if its leaking coolant its more than likely the water pump if thats why you asking the question , worked on plenty of those engines and the weep hole for the water pump when the seal goes it leaks out and runs down under the intake manifold at the rear of the engine , timing belt water pump service end result

Jul 07, 2014 | 1998 Plymouth Grand Voyager

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My daughter's 2002 jeep liberty is leaking water from the engine. It appears to be coming from what looks like a drain in the engine. I can't find any reference for this drain-looking tube in the...


Well, it all sort-of depends on what tube you are talking about and what kind of water is coming out of it. If you are seeing plain, clear water coming out of a tube that is located on the right (passenger) side of the vehicle on or near the firewall, then YES, water is supposed to be coming out of it when she is running her air conditioner. This would be the drain tube for the air conditioner that lets the water drain under the vehicle so it does not fill the cabin up with water.
If it is not plain water, like antifreeze (GREEN or PINK), then, NO, this should not be happening and you should get it checked immediately.

Oct 05, 2011 | 2002 Jeep Liberty

2 Answers

Where are all the freeze plug located on 4.6 w/auto. is there one between the block & transmission


Yes, there are expansion plugs (freeze plugs) on both sides of the engine block and at the rear of the engine block between the engine and transmission. There are also a couple in the ends of the cylinder heads.

With all that said, I would like to add that many times with that engine, the heater tube and connecting hoses can leak and be mistaken for a rear expansion plug leaking. I would definately check this before pulling the transmission out.

There is a tube that runs from the back of the water pump under the intake manifold and out the rear of the engine where it hooks up to the heater hose/heater core. This tube has a small hose connecting it to the back of the water pump. There is also a hole in the back of the engine block that will allow antifreeze from under the intake manifold to leak into the transmission bell housing area. When this tube or hose leaks, it often gets mistaken for a leaking rear expansion plug.

It is very easy to check for this. Remove the serpentine belt and remove the alternator and look under the intake manifold down in the "valley" between the cylinder heads. If there is antifreeze in there, the hose or the tube is leaking. Look at the picture below. Item #3 is the tube and hose assembly I am talking about. Usually, just the hose is leaking. It should be replaced with a short piece of SILICONE heater hose. On some of the vehicles, there are 2 hose clamps. On others, the end of the hose that is attached to the tube has a crimped collar on it. If yours is like this, you can fix it by carefully cutting the crimp collar off and replacing the hose using band clamps. (screw-type)

Also look for antifreeze leaking into this area from the front intake manifold runner. They tend to leak on the front runner near where the thermostat housing is located. These will also leak into the valley area and run out the back of the engine. If the manifold is leaking, chances are it is warped. DORMAN makes a replacement intake manifold kit just for this purpose because it has been so common. It is also very easy to check for this with the alternator removed.
The DORMAN part number for your vehicle is 615-178 (See second picture below)


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Sep 21, 2011 | 1996 Ford Mustang

1 Answer

Have a 2006 impala and it will overheat then all of a sudden go back down. Also there is a coolant leak but cant figure out excatly where no holes in the tubing.


faulty thermostat is probably the culprit and it is probably leaking from the overflow when it overheats from the reservoir

Jan 18, 2011 | Chevrolet Impala Cars & Trucks

2 Answers

Water is leaking from the little nozzle behind the water pump - how to fix


Water pumps have a vent or "weep" hole. If any coolant is coming out of the weep hole, the water pump is defective and will have to be replaced. Best wishes.

Aug 17, 2009 | 1996 Pontiac Grand Am

2 Answers

Water Pump leakes from steel tube.


when installing new o-ring on tube, lubricate o-ring and stick it in water pump. Then pull pressure back on tube and then tighten hold down clamp. problem solved

Apr 16, 2009 | Dodge Caravan Cars & Trucks

2 Answers

Engine Coolant Leak


That sounds like the heater bypass tube. On the end of the tube going into the water pump is an o-ring. Pull out the tube, clean it real good, put a new o-ring on it. Clean the hole well that it goes in. Then I will put a slight amount of silicone around the o-ring. That helps it go back together and fills any imperfections.
Hope this helps you.

Apr 03, 2009 | 1999 Dodge Ram

3 Answers

1999 kia sephia leaking antifreeze


you will need to replace that water lin it runs to the water pump which is why its leaking so badly....you will need to replace it asap

Jan 19, 2009 | 1999 Kia Sephia

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