Question about 2000 Mitsubishi Montero

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My Pajero 2800 Turbo Diesel blows water into overflow tank

My Pajero 2800 Turbo Diesel suddenly start blowing its water into the overflow tank. I replaced the radiator cap and did a gas check. The last was negative, but there is bubble coming out of the radiator when the engin is running. So I assumed that the head is cracked or the gasket has blown, so I had them replaced with a new gasget and new head. To my horror she is still blowing water into the overflow tank, although less than before. It now takes about 300 km to blow out so much water that the overflow tank is full. Can you help? A Beyers

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Have a look at the thermostat.
If it's blocked shut, there won't be the circulation through the rad.
You may need to invest in some 'radweld' type treatment too.
Good luck with that.
Don't forget to rate, thanks ;)

Posted on Aug 01, 2009

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Pip could be leaking try that let me no if it works

Posted on Jan 28, 2013

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1 Answer

If the overflow hose on my 03 pt cruiser with a 2.4L turbo is capped off will it make it overheat?


It should.
Here is the principle.
Water and coolant/antifreeze will expand when heated, as will the air trapped in the radiator and system.
If you cap off the overflow, the liquid will have no place to go, and will either go past the radiator cap or will blow up the radiator or a hose.
If the liquid exits at the radiator cap, when the engine cools down, the system will be low on fluid, and will create a vacuum.
If you had a working coolant tank, the vacuum would draw the coolant back into the radiator by suction.
If you cap the overflow off, you will leave the radiator low on coolant. At that rate, when it gets hot the next time, it can overheat, and if worse comes to worse, you can blow a head gasket.
God bless your efforts.

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Your best bet for this type of info is search through Pajero Owners forums and clubs to see if anybody has already done this.

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Mitsibushi pajero 2800 turbo diesel 1994


Look no further for help,
try this website ? www.reliable-store.com

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