Question about 2003 Buick Rendezvous

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Water coolant leak in back of motor from where?

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If you have a leak at the drivers side end of the engine it can drip down the rear, or firewall side of the motor, and make it appear as if the leak is there. I see a lot of lower intake gaskets that leak coolant in this very manner...the coolant puddles a bit on top of the rear of the block then drips down along the backside side of the engine where it then drips off of the bottom of the bellhousing. It's difficult to see where these gaskets leak but you may be able to follow the trail of coolant back to the source. There are a lot of other places that a leak could be coming from but most of the ones I see are caused by the lower intake gaskets. Hope this helps and good luck!

Posted on Sep 10, 2010

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  • Buick Master
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That would be from a engine block core plug or a leakiong intake gasket

Posted on Sep 10, 2010

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1 Answer

Water leak in back of motor


have a pressure test done on the coolant system and look for a rusted /leaking welsh plug around the motor block and head.. If it is the block and is next to the fire wall then be prepared to pull the motor to have it fixed.

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Coolant leak from underneath


if you have a coolant or antifreeze mixed with the water, you should see a trace of the coolant on the motor, where it is leaking. check water hose clamps and water pump. if the water pump is leaking slowly, it has failed and will break within time. any coolant leak will cause your car engine to overheat.

Jan 05, 2014 | 1999 Ford Taurus

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Water leaking from top of engine


Is it water or engine coolant leaking? Check the coolant level and see if its low. If the coolant level is low...the coolant system will need to be pressure tested and leak pinpointed. If you sure its water...I would look at the black windshield cowl. This cowl channel's away water and could be leaking on the motor. There is windshield washer hoses in the cowl that could be leaking. Good Luck

Nov 27, 2012 | 1999 Ford Windstar

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1996 c1500 coolant level keeps dropping with no sign of leaking, possibilities?


look for water out tail pipe after you warm it up then rev motor to 1500-
2000, ,check oil for milky color on dip stick, and trany fluid &cooler for milky color, check coolant tank for,
smell of exhaust or just not a clean coolant smell , if in dought open a bottle of anti freez thats what it should be like, im thinking head gasket
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Oct 29, 2012 | 1996 Chevrolet K1500

1 Answer

Leaking water from top of motor


Tale the truck to a shop and have the cooling system pressurized to see where the coolant is coming from is my advice. They do leak at the heater hose above the passenger side rear most cylinder, remember water is clear and coolant is green or yellow or reddish colored and feels slimy to the touch, water is of course clear..

Oct 08, 2012 | 2000 Ford Expedition

1 Answer

Possibility of a cracked block. how can i be sure/


Vehicles: Any with the above symptoms

A cracked cylinder block will cause either:
(a) motor oil contamination of engine coolant
(b) coolant contamination of motor oil
(c) white exhaust smoke, due to coolant seeping into one or more cylinders.
(d) more than one of the above
(e) all of the above

Oil infiltrating into coolant is easy to see - drain some coolant out through the pepcock at the bottom of the radiator, and place it into a styrofoam coffee cup. Oil droplets floating on top of the green (or orange) coolant are easily seen. Or visualize oil by looking into the top of the radiator through the radiator cap.
Coolant infiltrating into and mixing with motor oil will permanently damage the engine (seizing it up through loss of lubrication), and must be prevented.
A leak from above the front suspension is, as physicians like to put it, "nonspecific", with the most likely cause a water pump seal or hose/hose connection.
A leak from near the fire wall will usually be a heater core hose, or hose connection.
A coolant leak on the same side of the engine as the water pump is a leaking water pump or water pump seal until proven otherwise.

To rule out everythng else, here's the 1999 Honda CR-V Troubleshooting Guide for Coolant Loss/Coolant Leaking:

Priority Action Part Type Cause
1 Inspect Water Pump - Worn, Cracked or Leaking Water Pump, or Water Pump gasket.
2 Inspect Head Gasket - Leaking Head Gasket.
3 Inspect Radiator - Leaking Radiator Hose(s).
4 Inspect Radiator Cap - Worn or Damaged Radiator Cap.
5 Inspect Radiator Hose - Ruptured, Cracked or Leaking Radiator Hose.
6 Inspect Freeze Plug - Leaking Freeze Plug(s).
7 Inspect Intake Manifold Gasket - Leaking, Worn, or Damaged Intake Manifold Gasket.
8 Inspect Water Outlet - Cracked, Leaking or Damaged Water Outlet.
9 Inspect Heater Control Valve - Leaking or Faulty Heater Control Valve.
10 Inspect Radiator Drain Pepcock - Loose, Damaged, or Faulty Radiator Drain Pepcock, or Pepcock O-ring.
11 Inspect Engine (DOMESTIC ONLY) - Cracked Cylinder Block Leaking Coolant into at least one Cylinder, causing white exhaust smoke.

Dec 03, 2011 | 1999 Honda CR-V

1 Answer

My car starting over heating and i have put about one bottle of coolant and about five bottls of water its not leaking but the coolant level is still reading low and i dont know what to do and the coolant...


It has to be leaking some where if not on the outside then you have a bad head or intake gasket and the water is getting burned in the motor. Check all under the car for a leak if none found then the only place it can be going is in the motor. Do you notice a white smoke coming from your exhaust, if so that is water and coolant being burned. The coolant jar your refering too is the overflow and that is normal when it overheats. Used to be when it overheated it just shot steam out of the radiator cap, nowdays all that is captured and re used. Look around the water pump for an obvious signs of any leakage. might just be a bad pump and the engine is heating up and overflowing

Aug 20, 2011 | 1997 Lincoln Continental

1 Answer

I have a water leak that comes from a small hose on the drivers side of the motor. The hose comes out of the motor near the fuel injection system, does a 180 degree turn and goes right back into the motor....


if the hose is by the thermostat, it is the coolant bypass hose. drain some coolant from radiator when cold and replace hose, refill system then check to make sure there are no leaks.

May 15, 2010 | 1995 Nissan Quest

1 Answer

Coolant is still leaking


the water seal at the housing is bad. check the oil if it looks like vaseline the motor needs to be rebuilt.

Jan 15, 2009 | 1988 Mazda RX-7

2 Answers

Car leaking coolant


First of all ensure that your car is leaking coolant fluid, and what is dripping is not just water condensation from the air conditioner.
If you have a coolant liquid leak, it can be from one of the ducts leading to radiator , from water pump or radiator itself. Check liquid levels, and if you have a leak have the car inspected by a qualified mechanic.
A broken water pump, for example, can cause your motor to blow in few miles.


Jun 08, 2008 | 1997 Cadillac Catera

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