Question about 2000 Mitsubishi Galant

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Mitsubishi Galant 2000 water blowing out of overflow. Problem started after slow radiator leak caused car to overheat and it was driven about 4 miles on fwy before car was stopped to have radiator refilled. Resealed radiator, but it opened up again. Replaced radiator. Water blowout was noted, so I replaced radiator cap, then Thermostat. Problem continues. Can drive about 25 miles before enough water is blown out (about 3 Qts) that the car starts to over heat. If it is a head leak, is there some type of sealer that can be added to stop leak? Email:

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Try "Iron tight" head gasket sealer.

Posted on May 06, 2010

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Ok make sure water pump is good, when leaking squeeze upper radiater hose, if it is swollen and hard , ur t-stat is not working, and yes there is a sealer called BARS for radaitors, works well, also, depending on the car a computor upgraede could be needed , thats a dealer thing, had a 2009 bmw do that

Posted on May 07, 2010


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Posted on Jan 02, 2017

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SOURCE: To fix the Problem described below, fobara

sorry but think about it how many galants have you seen on the road lately, u can try but if its over 130,000 its done this was another car made to fail

Posted on May 08, 2010

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3 Answers

Galant overheating

water pump and head gasket is giving problem......the cooling fan is working?

Jul 15, 2014 | 1999 Mitsubishi Galant

1 Answer

Check engine comes in when engine starts to overheat, which it does in slow traffic. Radiator, fans, water pump are OK.

Did you check/replace the thermostat? Another possible cause may be hair line cracks in the head(s).

May 10, 2014 | 2006 Mitsubishi Lancer

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I have a mitsubishi galant ms 1989 1.8L SOHC with the 4g37 fuel injected motor. I am having overheating propblems and I can't get it sorted. The car is building up an air lock in the top radiator

building up air /pressure in the radiator is a head gasket problem so have a compression test done to check it
if the gasket was place incorrectly , it could be blocking a water hole between head and block
If the head stud holes were not cleaned out properly , the studs could be bottoming out and not getting the proper tension on the head
if you did not use the proper rotation and sequence in tightening the head down it will leak at the head
if you have a viscous fan hub ( fan clutch ) it could be faulty ( overheating at lights , slow traffic, high engine rpms)
if you have electric fan , could be a coolant temp sensor, fuses or fan relay

Mar 18, 2017 | Mitsubishi Cars & Trucks

1 Answer

Car keeps overheating

Assuming the engine is ok, no leaking head gasket or exhaust problem, you need to know if the radiator fan comes on when the engine reaches 225 degrees. It should also come on when you turn the ac on if the ac works.
Its also possible you have air in the cooling system.

Jul 20, 2012 | 2005 Dodge Neon

1 Answer

My 2000 galant is having high engine temp when i stock in traffic,but it is in normal range when im running. i change already the thermostat,rad cap and hoses, but nothing changes. what would be possible...

Sounds like the radiator fan isn't coming on. You don't need the fan on when you're moving, cause air is blowing into the radiator, but sitting still you need the fan or it'll overheat. This makes me think the fan isn't coming on.

Jun 13, 2011 | 2000 Mitsubishi Galant

3 Answers

What are all the possible thing that could cause overheating in a Car to the extent of water boiling and as a result ogt the radiator bursted?

1.If your radiator burst replace. 2.With the car COOL, open the radiator cap or overflow and fill it.3.Leaving the cap off, start the car and let it warm up as you keep the radiator topped off. 4.Once it wont take anymore and your sure the car is completely warmed up, reinstall the cap.5.Everything else your gonna have to hurry on or your car may start overheating. Grab the top hose and squeeze it. If you can't almost grab it till it closes then you have a bad thermostat. Replace it, if you have any doubts, pull it off the car and boil it inside in a pan of water, you should see the spring move and open the plate.6.If thats not it check your water pump for flow,bearings, and belt condition.7.Also check all your fluids for antifreeze contamination, mainly the oil, as this can be a sign of a blown head gasket which is very common on these years of Gallants. REMEMBER your cooling system cools by building pressures of over 300 psi, and any flaws in your radiator during a overheat will blow! Hope this helps ya buddy! Shannon(Shizzo)

Jan 14, 2011 | 1995 Mitsubishi Galant

1 Answer

To fix the Problem described below, fobara recommended "Iron Tight". Searched but could not find "Iron Tight". I did find "Irontite" made by Kwik-Way, Inc. Is this what fobara was recommending. Or is "Iron...

sorry but think about it how many galants have you seen on the road lately, u can try but if its over 130,000 its done this was another car made to fail

May 08, 2010 | 2000 Mitsubishi Galant

3 Answers

What could make my 03 civic ex overheat and cool down then overheat again while losing heat inside??? Already replaced radiator, water pump, thermostat.... motor

your heater has apparently restricted the coolant flow....hopefully a good system back flushing will cure the problem....use a flush obtained from a parts house....I would buy the hose kit for flushing as well...good luck to you

Mar 04, 2010 | 2003 Honda Civic

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