Question about 1998 Ford Taurus

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Coolant leak when parked near water pump on 1998 Ford Taurus GL near the water pump Still leaking after I had a cracked cylinder head, still leaks near water pump

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Run pressure test on coolant system, tighten all hoses, has water pump been changed?

Posted on Sep 29, 2009

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Ifull the tank in the radiator but it will disaper but no leaking in the hose what would i do


If you are losing coolant then you have either an external or internal leak.
If you can find no indication of an external leak from the radiator, the radiator overflow tank, any of the hoses on the system or around the water pump fitting then you may well have an internal leak. Check the radiator overflow tank carefully and the hoses to it for any signs of external leakage.

An internal leak of coolant can be via a failed cylinder head gasket or a crack in the cylinder head or both. Coolant can then leak under pressure into the cylinders or into the engine's lubrication system and will then mix with the oil. Check the condition and colour of your oil for evidence of coolant contamination. Check your exhaust for a constant flow of white exhaust emissions which is evidence of coolant entering the combustion chamber.

If you have run the vehicle with the engine overheating this will generally cause failure of the cylinder head gasket and possibly a crack in the cylinder head.

Feb 18, 2016 | 2001 Ford Escape

2 Answers

Coolant leak


Pull your oil dipstick and look at the level and appearance of what's on the stick.

If the oil level is WAY high, and it looks like chocolate milk, that's where your coolant is going.

It means either the head gasket is blown, or the cylinder head, or the engine block is cracked.

Feb 10, 2014 | 1998 Nissan Altima

1 Answer

Coolant and oil leak


have a compression test done as the bubbles suggest a blown head gasket or cracks. That will account for the overheating. The oil leak may be from the head gasket or cracks.

Jan 21, 2014 | 2000 Ford Taurus

1 Answer

1999 ford taurus- yellow engine warning light keeps showing cylinder 1 misfire. I have: 1. Changed out plugs and wires, 2. switched wires around, 3. replaced fuel injector, 4. replaced coil. Still...


Yes.
You could have a leaking head gasket or a crack in the cylinder head.
After driving the car for a few days the spark plug should show signs of coolant on the tip.
You may want to do a compression test to see if that cylinder is low on compression too.

Feb 08, 2013 | 1999 Ford Taurus

1 Answer

Leaking coolant


If the water pump was bad, it would either leak water out the front of engine from the pump (bad seal inside the pump), or it would not circulate the coolant through the engine and the radiator (bad or worn pump impeller blades) but then for sure, the car would overheat.
Where was the smoke coming from, the exhaust or the engine area? If it's from the engine area, the coolant was probably leaking on the engine and then boiled away. If you had white smoke from the exhaust, coolant is entering a cylinder from a head gasket leak and being burnt off inside the engine.

Mar 30, 2012 | 2002 Ford Taurus

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 have a 2002 Taurus 3.0 v6 single I have smoke that is rolling out from the hood when driving I looked at the water pump it seems to be leaking at the water pump where it goes into the head on the motor...


It sounds like you have either a leaking water pump or hose near the water pump. Sometimes you can take a small mirror and a light and follow the trail of coolant back up to the source [worth a try anyway] Most water pumps will leak from a small weep hole that is located behind the pulley and it can be hard to see this. Be careful not to overheat the engine as that can cause cylinder head damage, or worse, if it gets hot enough and can make a small problem much bigger and more expensive. Hope this helps!

Nov 27, 2010 | 2002 Ford Taurus

4 Answers

Loosing coolant no visible leaks about 1/2 gallon every 100 miles


How To Find & Fix Coolant Leaks

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WHERE COOLANT LEAKS OCCUR
Coolant leaks can occur anywhere in the cooling system. Nine out of ten times, coolant leaks are easy to find because the coolant can be seen dripping, spraying, seeping or bubbling from the leaky component. Open the hood and visually inspect the engine and cooling system for any sign of liquid leaking from the engine, radiator or hoses. The color of the coolant may be green, orange or yellow depending on the type of antifreeze in the system. The most common places where coolant may be leaking are:
Water pump -- A bad shaft seal will allow coolant to dribble out of the vent hole just under the water pump pulley shaft. If the water pump is a two-piece unit with a backing plate, the gasket between the housing and back cover may be leaking. The gasket or o-ring that seals the pump to the engine front cover on cover-mounted water pumps can also leak coolant. Look for stains, discoloration or liquid coolant on the outside of the water pump or engine.

Radiator -- Radiators can develop leaks around upper or loser hose connections as a result of vibration. The seams where the core is mated to the end tanks is another place where leaks frequently develop, especially on aluminum radiators with plastic end tanks. On copper/brass radiators, leaks typically occur where the cooling tubes in the core are connected or soldered to the core headers. The core itself is also vulnerable to stone damage. Internal corrosion caused by old coolant that has never been changed can also eat through the metal in the radiator, causing it to leak.

Most cooling systems today are designed to operate at 8 to 14 psi. If the radiator can't hold pressure, your engine will overheat and lose coolant.

Hoses -- Cracks, pinholes or splits in a radiator hose or heater hose will leak coolant. A hose leak will usually send a stream of hot coolant spraying out of the hose. A corroded hose connection or a loose or damaged hose clamp may also allow coolant to leak from the end of a hose. Sometimes the leak may only occur once the hose gets hot and the pinhole or crack opens up.

Freeze plugs -- These are the casting plugs or expansion plugs in the sides of the engine block and/or cylinder head. The flat steel plugs corroded from the inside out, and may develop leaks that are hard to see because of the plug's location behind the exhaust manifold, engine mount or other engine accessories. On V6 and V8 blocks, the plugs are most easily inspected from underneath the vehicle.

Heater Core -- The heater core is located inside the heating ventilation and air conditioning (HVAC) unit under the dash. It is out of sight so you cannot see a leak directly. But if the heater core is leaking (or a hose connection to the heater core is leaking), coolant will be seeping out of the bottom of the HVAC unit and dripping on the floor inside the passenger compartment. Look for stains or wet spots on the bottom of the plastic HVAC case, or on the passenger side floor.

Intake Manifold gasket -- The gasket that seals the intake manifold to the cylinder heads may leak and allow coolant to enter the intake port, crankcase or dribble down the outside of the engine. Some engines such as General Motors 3.1L and 3.4L V6 engines as well as 4.3L, 5.0L and 5.7L V8s are notorious for leaky intake manifold gaskets. The intake manifold gaskets on these engines are plastic and often fail at 50,000 to 80,000 miles. Other troublesome applications include the intake manifold gaskets on Buick 3800 V6 and Ford 4.0L V6 engines.

INTERNAL COOLANT LEAKS
There are the worst kind of coolant leaks for two reasons. One is that they are impossible to see because they are hidden inside the engine. The other is that internal coolant leaks can be very expensive to repair.

Bad head gasket --Internal coolant leaks are most often due to a bad head gasket. The head gasket may leak coolant into a cylinder, or into the crankcase. Coolant leaks into the crankcase dilute the oil and can damage the bearings in your engine. A head gasket leaking coolant into a cylinder can foul the spark plug, and create a lot of white smoke in the exhaust. Adding sealer to the cooling system may plug the leak if it is not too bad, but eventually the head gasket will have to be replaced.

If you suspect a head gasket leak, have the cooling system pressure tested. If it fails to hold pressure, there is an internal leak. A "block tester" can also be used to diagnose a leaky head gasket. This device draws air from the cooling system into a chamber that contains a special blue colored leak detection liquid. Combustion gases will react with the liquid and cause it to change color from blue to green if the head gasket is leaking.

Head gasket failures are often the result of engine overheating (which may have occurred because of a coolant leak elsewhere in the cooling system, a bad thermostat, or an electric cooling fan not working). When the engine overheats, thermal expansion can crush and damage portions of the head gasket. This damaged areas may then start to leak combustion pressure and/or coolant.

Cracked Head or Block -- Internal coolant leaks can also occur if the cylinder head or engine block has a crack in a cooling jacket. A combustion chamber leak in the cylinder head or block will leak coolant into the cylinder. This dilutes the oil on the cylinder walls and can damage the piston and rings. If the coolant contains silicates (conventional green antifreeze), it can also foul the oxygen sensor and catalytic converter. If enough coolant leaks into the cylinder (as when the engine is sitting overnight), it may even hydro-lock the engine and prevent it from cranking when you try to start it. Internal leaks such as these can be diagnosed by pressure testing the cooling system or using a block checker.

A coolant leak into the crankcase is also bad news because it can damage the bearings. Coolant leaking into the crankcase will make the oil level on the dipstick appear to be higher than normal. The oil may also appear frothy, muddy or discolored because of the coolant contamination.

Leaky ATF oil cooler -- Internal coolant leakage can also occur in the automatic transmission fluid oil cooler inside the radiator. On most vehicles with automatic transmissions, ATF is routed through an oil cooler inside the radiator. If the tubing leaks, coolant can enter the transmission lines, contaminate the fluid and ruin the transmission. Red or brown drops of oil in the coolant would be a symptom of such a leak. Because the oil cooler is inside the radiator, the radiator must be replaced to eliminate the problem. The transmission fluid should also be changed.

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Mar 12, 2010 | 1998 Oldsmobile 88

1 Answer

1998 ford taurus keep running hot


When car is cold make radiator is full.then fill up your recovery tank make sure you do not spill. then park car on level ground and it dry look for any wet spot's on the ground. If no leak's you have a blown head gasket and if it's useing water that much do not drive it

Sep 21, 2009 | 1998 Ford Taurus

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