Question about 2002 Chevrolet Impala

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Leaking water my car was leaking water out of a hard plastic hose at the top of motor by intake it is above the water pump it is hard plastic and an L shape what would that be?

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It would be the thermostat cover

Posted on Oct 19, 2008

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Badly leaking water


I am send you a picture of a plastic hose that is a very common problem with the GM 3.8 motors. I do a lot of head gasket. this hose is shaped as a L and if you stand at right front tire and look behind the coil pack and just above the water pump. this hoses crack 10_29_2012_4_28_52_pm.jpg

Aug 13, 2012 | 1998 Pontiac Bonneville

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Water leaking underneath the motor


A little leakage is normal. Also the A/C will drip water, but that comes down from the firewall area.

From the motor, it may indicate a leaky water pump. This will drip from the front of the engine which is the right side as the driver looks. The pump is located under the timing belt cover.

Also check all your large hoses to see if a leak has developed at any joint.

The V6 engine often develops a water leak under the intake manifold which is hard to see. The water appears on top of the transmission. Camrys will often also get a split in the plastic radiator top tank, so look there.

If you are not losing large amounts of water, you have a while to track it down at leisure !

Feb 07, 2012 | 1994 Toyota Camry

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

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

Grand Marquis LS 2004 smoking under hood on drivers side what is possibility of being gasket? no broken hoses ..not short on oil. no leaks..no radiator or heater problems. ..brand new thermostat installed...


This model uses a composite (some would say plastic) intake manifold, which has been known to develop cracks in the area of the thermostat housing. In addition, the water pump has a pipe to the back of it that emerges in the rear of the intake manifold. Both of these areas peculiar to this motor are known to leak coolant. In its history, many of these plastic manifolds had to be replaced, and there were even techinical bulletins from Ford on them. If you have leak in the tube or pipe that goes under the intake manifold to the back of the water pump, then you will likely want the dealer to fix it, as you may need a new water pump.
Two things then to watch: 1) coolant level and color and 2) any signs of leakage behind the main serpentine belt in the area of the water pump.
Since the serpentine belt is large on the 4.6L motor, and due to its rotation, it is possible that you only have a bad water pump and that the liquid is being thrown by the rotation of the motor. The water pump is not a difficult repair, as it comes off with only a few cap screws. However, if it is detached from the rear inlet pipe (as I mentioned above), it would require that the manifold be removed for it to be reattached. This is not a difficult job, but is very time consuming.

Nov 28, 2010 | 1989 Mercury Grand Marquis

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

What is causing your overflow tank to be empty and i don't see no leaks anywhere?


could be a number of areas; series 2 3800 engines have a problem with the intake plenum- it is made with plastic and over time warps causing hard starts, poor idling and coolant loss; there is also a bypass hose that leads to the intake and attaches to a fitting; this fitting is sometimes made of plastic and disentegrates-the threads break apart; water pump also is a common problem- if it is leaking, there is a weep hole on the underside that will drip coolant when the motor is running; finally check all ur hoses and the hose that leads away from the overflow

Jun 27, 2010 | 1997 Pontiac Bonneville

2 Answers

I have noticed a couple of drops of anti freeze on the floor the last couple of days the bottom of the car is starting to get wet with antifreeze


Right above the water pump there's a 90 degree elbow that's made out of plastic that comes out of the intake and goes to a heater core hose. That's where mine was leaking. Get it replaced soon because it will get worse. I heard this is common on these 3.8L engine.

Nov 09, 2009 | 2004 Pontiac Grand Prix

1 Answer

Intake heater hose leak


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 !!!!!

Jan 08, 2009 | 1996 Mercury Grand Marquis

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