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Leak behind water pump

Found a leak where the water pump bolts to motor. Is it a cracked block or a seal?

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  • 33 Answers

Only way to tell for sure is to pull the pump off and inspect it. Odds are very good that it's just a bad gasket.

Posted on Jan 06, 2013

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Posted on Jan 02, 2017

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duster292
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SOURCE: Coolant Leaking from Behind the Water Pump Body

This is a shot in the dark depending on how much it is leaking you can try a sealent called bars stop leak it is poured directly into the radiator (a cool one) and is run for an extended period of time you are not out much if it d'ont work. other than that you will have to have the gasket replaced with a sealent tempeture over 500 degrees good luck!

Posted on Nov 21, 2008

  • 532 Answers

SOURCE: Water leak next to block behind water pump.

if its anything like a 4.6 v8 in a 2000 f150 then there may be a hose under the intake,which the intake has to come off to fix it.and its a steel hose with a 3 inch piece of rubber hose on the end which is where it leaks,right behind the water pump\or alternator but actually down in the valley under the intake

Posted on Apr 25, 2009

  • 89 Answers

SOURCE: hello, i have a coolant leak i thought it was the

A crack in that area of the block, while possible, is highly unlikely. A crack in the block usually happens in between the cylinder walls on the side of the block. It is most likely leaking from the intake manifold gasket that connects the intake manifold to the heads, or if the upper radiator hose connects to the intake manifold, it could be leaking from the thermostat housing or hose. There are also coolant temperature sensors that are mounted in that area. Or last but not least, it could be leaking from one of the freeze plugs in the end of the head. Coolant runs through the block, heads and intake manifold.

Posted on Jan 03, 2010

Testimonial: "Thank you, what a relief that a crack is highly unlikely. You have been very helpful!"

  • 1 Answer

SOURCE: Antifreeze Leak behind oil filter. Is there by chance a seal there that might be broken, or is it pretty much a cracked engine block

if anyone has the answer to this, i have the exact same problem..

Posted on Mar 27, 2010

SOURCE: antifreeze leak behind timing cover

Try replacing water pump gasket and or you might have a cracked water pump try replacing the water pump itself

Posted on Dec 11, 2012

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1 Answer

What would leak water besizes the water pump behind the motot?


Lots of possibles:
- Bad hose
- bad seal in water pump
- bad head gasket
- cracked head
- cracked block
May I suggest that you dry it off, fill the radiator, then run it for 5 minutes. Shut it off and use a mirror, flashlight, finger tips, and tissue paper to locate the exact source of the leak.
Keep trying with 5 minute intervals of run time and eventually it will start to leak. Then you'll find it.
heers.

Feb 18, 2016 | Cars & Trucks

2 Answers

Water leakin behind the motor


could leak water pump that what you did.

Feb 28, 2013 | Cars & Trucks

1 Answer

Oil leak


There is a timing cover gasket behind the water pump.
You may have to clean off the block to find the leak. Mechanics can use dye in the oil and a black light.

Feb 01, 2013 | 1996 Oldsmobile Ninety Eight Regency

1 Answer

Antifreeze leak behind timing cover


Try replacing water pump gasket and or you might have a cracked water pump try replacing the water pump itself

Dec 11, 2012 | Cars & Trucks

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

3 Answers

Leaking coolant.. its hard to see where it is coming from.. it leaks out heavily when car is cranked,, it looks like it is comin from right behind the belt drive (the bigger one) is that the water pump?


This does sound like your water pump is leaking, or your head gasket has busted on the outside edge. I would check the water pump first, as it is fairly common for the seal to bust and leak coolant from the water pump.

Feb 16, 2011 | 2004 Pontiac Grand Prix

1 Answer

The engine is over heating. i checked and the radiator was empty, dead giveaway huh!...i filled it up, started the car and the water isn't circulating even though i drove it around for a short while to get...


More than likely the water pump seal has failed. You will have to replace the waterpump to get this fixed. It takes quite a while for water to start circulating due to the thermostat which blocks water from flowing into the radiator when it is still cold (less than 90deg celsius). Due to the overheating the thermostat may also have been damaged and stuck in the closed position. It is not expensive so have it replaced along with the waterpump to be safe. A cracked head will not leak water outside the engine. (In 25 years I've not seen this once)

Sep 02, 2010 | 1996 Hyundai Accent

1 Answer

Ford mondeo 2002 Zetec 2.0 motor ..Have a small or slow water leak comming from front of motor behind water pump area ,above air con unit, where water hose goes into the motor ..very hard to see where it's...


Starting from the top down dab every joint and seam with kitchen paper towel. Between each dab and press examine the kitchen towel for dampness. It is vital that you find out exactly where the leak is coming from. You could be lucky and the leak might be fixed buy an extra half turn on a jubilee connector on a hose union or a quarter turn on the water pump or thermostat housing bolts. If the leak persists you may require a new gasket . If the leak is from the water pump shaft seal behind pulley you will see a tell tale stain on the 'chin' of the pump body. This will require a replacement of the pump.

Sep 02, 2010 | Ford Focus Cars & Trucks

2 Answers

Coolant leak, Help!


Sounds like the water pumps Knackered. Should only cost about 100 GBP or 150 dollars to sort surely a 200sx is worth the investment they're normally bomb proof !!!!!!!!!!!!!!!!

May 13, 2009 | 1998 Nissan 200SX

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