Question about 1999 Ford Explorer

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Show where coolant leaks commonly at rear of engine

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If this is a V-6 engine there is a cylinder head crossover tube that has developed leaks in past at this location

Posted on Oct 20, 2013

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(I will give you what would be most common in the U.S.A. reasons)
1) A leak somewhere that can be seen with a really good strong light, and probably a frame hoist so you get under the car.
Since the coolant is colored, you should be able to see or taste the leak.
Since the coolant is poison, you will need the tiniest droplet to taste for it.
The engine might need to be running to pressurize the cooling system for the leak to show up.
2) An internal leak in the engine, traceable by white smoke out the tailpipe.
3) A malfunctioning cooling fan or radiator cap.
God bless your efforts.

May 02, 2017 | Cars & Trucks

3 Answers

Where are the freeze pluges for the trany coolent??

There are none. The Transmission does not use water to cool it.

Apr 03, 2015 | 2002 Mercury Mountaineer

1 Answer


It is possible you mave have a "freeze plug" seeping coolant from the rear of the engine.

Sep 07, 2014 | Cars & Trucks

1 Answer

Leaking coolant dont know were is leaking from and is over heating

Coolant have colour just for this same thing so that you can see where it is leaking. I use green colour coolant which is most common and when I need to find a very minor leak (major ones are visible as green crystalline deposits) normally I use UV light. Under UV light the coolant shows florescence.

Other things to check in such cases are:
Radiator cap and Coolant valve which often get choked and do not open resulting in over heating of engine.

Feb 23, 2013 | 1999 Volvo S80

1 Answer

Coolant leak 1994 voyager 3.3

Could be a freeze plug on the engine block. If you have a block heater installed in one of the freeze plug holes, check it for getting too loose and leaking. Pretty common problem with a block heater that's been in there a long time.

Aug 25, 2012 | 1994 Plymouth Voyager

1 Answer

I have a slow coolant leak, gallon every two weeks. at first it was the radiator - had it replaced, then hose connectors on top of engine - had them replaced, then bad connection on radiator hose - had it...

Hi, there are 2 common locations for a coolant leak on a vortec engine. The water pump, and the intake gasket. A coolant pressure test may show the leak better. There is a weep hole , or a vent hole, at the bottom of the water pump. This should be checked, as well as the edgesnof the intake, and the front and rear of the intake. Chances are you will find the problem in these areas. Good luck...Coop

Sep 21, 2011 | 1999 Chevrolet K1500

2 Answers

My Chevy Venture 1999 when I drived the temperature was normally, but when I stay the temperature was hot. I changed the termosthator but the problem is continually.

Check the coolant reservoir and the radiator for proper coolant level. If low you probably have a leaking intake gasket or possibly a head gasket leak. The intake leak will be visible on either end of the intake manifold, located at the very top portion of the engine. The head gasket usually shows up at the rear head, nearest the belt. You could have a water pump leaking and this would show coolant on the ground under the right front of the engine, more so when the engine is running. They are very common for all 3 problems.

Mar 02, 2011 | 1999 Chevrolet Venture

2 Answers

Leaking coolant somewhere below after car is warm and shut off can not find,recently replaced water pump, and it is not the radiator

Does this vehicle have a 3.1 or 3.4L motor. If so they commonly have intake manifold gaskets failures. This leads to coolant leaking, usually at the corners of the intake manifold and in some instances leaking into the oil. Look for signs of coolant leaking at the corners of the intake manifold and check the engine oil for coolant.

Sep 05, 2010 | 1997 Chevrolet Monte Carlo

1 Answer

Coolant leak at rear of engine

on the s10 pick ups, they commonly had a 2.2 liter engine. that engine is suspect to external head gasket failures. it is very obvious once seen. if you have the 4.3 liter..they are suspect to the intake manifold gaskets leaking...hope this helps

Aug 03, 2010 | 1998 Chevrolet S-10 Pickup

2 Answers

If my rear line coolant leaked, but my radiator

if your coolant leaks eventually you will run out of coolant and your engine yes will overheat

Jul 30, 2009 | 2004 Kia Sedona

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