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Leak in radiator hoses- may be cracked head in engine?

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After you replace the Hoses, If the Head is Cracked it will Start to Overheat.

Posted on Feb 02, 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

1 Answer

Why is my car loosing antifreeze


There can be numerous reasons for coolant loss.

External Coolant loss
1. Coolant escaping from the radiator cap. Replace the cap.

2. There is an external leak in the system which could be from a hole or crack in the radiator(especially the plastic sections) or a hole in a radiator hose or there is a loose hose connection.

3. The water pump gasket has deteriorated and coolant is escaping from around the water pump fitting.

4. There is a crack in the coolant overflow reservoir and coolant is leaking out.

Internal Coolant Loss
1. Coolant is escaping into the engine's cylinders in which event you will see white smoke coming out of the exhaust and you will also have combustion gasses leaking into the coolant passages which will cause bubbles and overheating of the coolant. This problem will be due to a failed cylinder head gasket, a crack in the cylinder head or both.

2. Coolant is escaping into the engine lubrication system and in that event you will see evidence of coolant in the engine oil. Pull the oil dipstick and check the condition of the oil. If it looks a bit like chocolate milk and not just normal oil colouring you have coolant in there. Also check the radiator cap when the engine is cold. There may also be evidence of oil in the radiator coolant that is stuck to the radiator cap and around the neck of the radiator.
This problem will also be due to a failed cylinder head gasket or a crack in the cylinder head or both.

Whatever the cause in your case don't hesitate to have it checked out by a competent professional If you lose coolant and you allow the level to run significantly lower than normal the engine will overheat and you will cause very expensive engine damage.

Jan 24, 2016 | Cars & Trucks

1 Answer

THE ENGINE OVER HEATS ,WHAT COULD BE THE PROBLEM ?


can be a multi reasons so well go thru them-- low coolant level---radiator--leak,clogged,blocked---radiator fan--not working--hoses--leaking,collapsed--water pump--worn,damaged,clogged,belt slip ---thermostat--stuck shut,stuck open,clogged---engine damaged-head gasket -leaking --head ,warped,cracked--cylinder wall damaged---oil --no pressure,pump damaged these are causes of overheating

Jul 16, 2015 | Cars & Trucks

1 Answer

Cracked block symptoms


crack block problem would cause engine overheating problems check radiator see if radiator has a leak could have rust in radiator.check for leaking hoses check water pump see if you wet signs where pump leaking at weep hole. if you suspect crack cylinder head.you need to do a cylinder leak detector test using air pressure looking for stream of bubbles in the radiator.

Jul 03, 2013 | Dodge Cars & Trucks

1 Answer

Kia Carens overheating


see this causes and remedies, you can have overheating by internal leak or external leak:
1) transmission oil cooler is leaking , 2) loose cylinder head gasket 3) engine block cracke 4) cracked cylinder head or engine block bore 50 oirl cooler is (inside radiator) is cracker.

2) external: a) leak at the hose connection b) water pump c) core plugsd) thermostat housing e) cilynder head.f) gasket cylinder head.

God bless you

Jul 18, 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

1 Answer

The car over heats after 2 to 3 miles of driving


if it has a 3.8 liter engine they are known to have head gasket problems or a cracked head , can also be a stuck thermostat .i would first check to make sure there are no coolant leaks from the radiator or water pump,hose ext. is the radiator low.if the radiator is low and you do not find a leak ,it may be head gasket leaking internally.(if coolant is leaking internally the oil in the engine may look like chocolate milk.

Feb 25, 2011 | 2000 Lincoln LS

1 Answer

Radiator leaking replaced thermostat radiator startied leaking does it have to be bleed or is it A true leak


If it's pushing coolant out from under the cap, you may have another problem (head gasket or cracked cylinder head) but if the leak is anywhere else on the radiator (except hose connections) then the radiator needs to be repaired or replaced. Always re-fill coolant with the engine running and heat on high to avoid any air pockets in the system.

May 20, 2010 | 1994 Jeep Grand Cherokee

3 Answers

Check eng light


1 Inspect Oil Pan Gasket - Performance Ruptured, cracked or leaking radiator hose. grey_line.gif 2 Inspect Hose (Bypass) Ruptured, cracked or leaking bypass hose. grey_line.gif 3 Inspect Hose (Heater) Ruptured, cracked or leaking heater hose. grey_line.gif 4 Inspect Radiator Cap Worn or damaged radiator cap grey_line.gif 5 Inspect Heater Core Heater core may be leaking antifreeze/coolant into the vehicle`s floor area. grey_line.gif 6 Inspect Heater Control Valve Leaking or defective heater control valve. grey_line.gif 7 Inspect Radiator Drain Plug Loose, damaged, or faulty radiator drain plug. grey_line.gif 8 Inspect Radiator Rusted, corroded, or damaged radiator may be leaking antifreeze/coolant grey_line.gif 9 Inspect Water Pump Damaged, worn or leaking water pump. grey_line.gif 10 Inspect Cooling System Mix Coolant level low or flow is restricted. grey_line.gif 11 Inspect Head Gasket - Performance Blown head gasket grey_line.gif 12 Inspect Hood Brace Leaking, worn, or damaged intake manifold gasket grey_line.gif 13 Inspect Freeze Plug Freeze plugs are cracked or leaking.

Dec 02, 2008 | 2003 Jaguar Vanden Plas

1 Answer

Car heats up, and seems to run out of water quick without leaking the water. I see the radiator but the only means of filling the radiator is the reservoir tank, and once you fill that one there is no more...


There is no radiator cap, the Lanos has what is called a "sealed cooling system", popular on newer model European cars and most Asian models, even some of the latest US made cars. You can squeeze and release the upper radiator hose repeatedly to "pump" some of the air out/water in.

The engine has to be leaking water somewhere. It could be a small leak that only leaks under pressure (when the car is hot) and the water is evaporating as fast as it leaks out. This kind of leak can be very hard to find! I had this problem on my daughter's 2001 Lanos until today, when I found the leak. A heater hose burst today while she was getting gas, luckily the car was stopped! It had been using about a tank full of water every month (about one quart or liter), but could find no leak. I suspected a leaking head gasket or cracked (which could be your problem), and was preparing to take the head off when she was on Christmas break from college. I'm glad that hose burts!

A leaking head gasket or cracked head is hard to detect. Most of the time there will only be a small leak when the engine is hot, and the small amount of water pulled into a cylinder is vaporised as the engine runs. There will be no water in the oil unless there is a large leak. Pull the oil dip stick and look under the oil fill cap. If there is a tan looking substance on either one there is water in the oil and you definitely have a cracked head or leaking head gasket. If it's just the gasket you're lucky -- the gasket will usually only leak if the engine has been run very hot (boiling over and then run a bit), and then the head will either crack or warp. A warped head can be repaired, but must be taken to a machine shop for repair. A machine shop can also check a head for cracks, as the cracks are usually too small to see, and usually only open and leak when the head is hot (normal engine operating temperature).

Sep 19, 2008 | 2001 Daewoo Lanos

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