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What is the route cause for coolant leaked from radiator

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The root cause is a hole, can be:
1: used water and frooze up
2: used bad conducting water and corroded (electrolosis)
3. impact of a foreign object, like a rock
4. manufacturing defect (bad materials/construction/ aging plastic)

Posted on Apr 19, 2014

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Losing a lot of coolant. I don't see a leak. I started to drain the system and it smells burnt to s**t. What might my problem and possible solutions be?


see this causes and fix it. God bless you
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.

Sep 28, 2012 | Cars & Trucks

1 Answer

Will a leak cause the radiator fan relay curcuit to malfunction on a 2003 jeep liberty 3.7


a leak in coolant system will cause air pocket in the coolant system around the engine coolant temperature sensor.coolant sensor is a thermistor in which when hot cool cause it resistance decrease which affect the voltage from sensor to pcm which will cause engine coolant to turn on.if coolant level okay,check coolant fan fuse and relay, if all is good,engine coolant temperature sensor could be bad or have vechicle code scan for pcm problems it control the coolant fan.fill coolant system to correct level make sure engine coolat reservoir is at full cold mark and not empty.fill coolant system check for leaks,refill coolant overflow jug back to full cold mark dont over fill, if coolant overflow stay empty you have leak either its leaking or you have radiator hoses or radiator leaking coolant.when coolant overflow jug run dry it cause air get in coolant system causing overheating problems.

Jul 25, 2012 | 2003 Jeep Liberty

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

2 Answers

My coolant is rapidly disappearing, and I have no clue why?


IF YOU GOT TOO MUCH WATER IN COOLANT SYSTEM AND DONT HAVE 50 / 50 MIXTURE OF ANTIFREEZE AND WATER. WATER WILL EVAPORATE BOIL AWAY.CHECK FOR COOLANT LEAKS LOOK AT TOP AND BOTTOM RADIATOR HOSES LEAKS, CHECK FOR COOLANT LEAKS AROUND BOTH RADIATOR CONTAINER AND RADIATOR CORES LEAKING. CHECK WATER PUMP WEEP HOLE. IF LEAKING WATER NEED REPLACING, CHECK ENGINE CRANKCASE ANTIFREEZE WILL LEAK IN CRANK CASE OR LEAK IN THE INTAKE GASKET COOLANT WILL BURN WITH FUEL.MANY THINGS WILL CAUSE COOLANT LOST.

Aug 12, 2011 | 2003 Ford Explorer

1 Answer

2006 Chevy express van. Normally runs one mark below 1/2 mark. Lately ocassionally goes 1-2 marks above half way (usually when sitting idling). Have had coolant changed (Chevy dealer) and new radiator cap...


You've already eliminated #3 and #6, so keep checking...

Priority Action Part Type Cause
1 Inspect Radiator Cooling System Clogged.
2 Inspect Radiator Radiator Fins Obstructed.
3 Inspect Radiator Cap Worn or Damaged Radiator Cap.
4 Inspect Radiator Fan Motor Faulty Fan Motor.
5 Inspect Belt Incorrectly Routed, Adjusted (Tensioned), Missing or Worn Drive Belt(s).
6 Inspect Thermostat Faulty Thermostat.
7 Inspect Water Pump Worn, Cracked or Leaking Water Pump.
8 Inspect Radiator Fan Relay Intermittent Failure

Jul 16, 2011 | Chevrolet Express Cars & Trucks

2 Answers

Coolant is leaking ,i have to fill it everyday.hardly any heat. what can i do? it seems like its shooting the coolant out somewhere on the right side of the motor.


It's probably the waterpump, it's right where you describe. They are pretty cheap and easy to do so even if you have a shop do it, it should not cost that much. Have it repaired before the engine is damaged from over-heating.

Feb 24, 2011 | 2000 Pontiac Montana

1 Answer

Coolant routing for 91 mazda rx7


Have no idea, but it's not hard to trace the hoses... they basically consist of an out from the water pump, and into the radiator, the out from the radiator and into the thermostat water jacket... then there will be 2 heater core hoses, in and out, which will be located on the firewall to the rare of the engine compartment. But if it's overheating the likely cause wouldn't be clogged hoses, unless of course you are leaking coolant which I'm sure you'd have noticed already. While the car is running and warm feel the coolant hoses, if they feel pressurized and hot then your water pump is likely good, and the likely cause would probably be the thermostat. Easy fix and cheap, too...

Mar 22, 2010 | 1991 Mazda RX-7

2 Answers

If my rear line coolant leaked, but my radiator


if your coolant leaks eventually you will run out of coolant and your engine yes will overheat

Jul 30, 2009 | 2004 Kia Sedona

1 Answer

Coolant lights go on and coolant reservoir leaking


Hi there susankk26,

There are three things that could cause the coolant light to be flashing all the time.
  1. Low coolant level in radiator or surge (overflow) tank
  2. Dirty or gummed up sensor
  3. Bad sensor
Guess where the coolant level sensor is located -> The overflow tank. The sensor can't be removed from the tank. The tank is leaking.

Replace the tank.

You can save a few bucks by doing it yourself. You can find one cheap at an auto salvage yard. They're pretty straight forward to switch out too.

If you decide to go this route or have any other problems, click the ASK button. I'll get you through.

Remember: Good thing come to those who Rate.

Mike

Aug 02, 2008 | 1991 Saturn SL2

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