Question about 1988 Mitsubishi Pickup

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Engine heater faulty every three months busted heater, what is the main problem? and how to fix it?

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When you say "engine heater" are you talking about heater core? I can't think of any other heater so you probably are. The reason is because you have **** in your cooling system. Heater core's are very sensitive and can be opened up by the littlest piece of sharp metal. When your coling system is neglected the anti-freeze brakes down and what once protected your engine from rust and other harmful things is now contributing to them. So you should change your anti-freeze at least once every two years. For now though you have to flush your system. You can take it somewhere and pay to have it pressure flushed, although I have heard horror stories about that, or do it yourself. If you do it yourself, go to the auto parts store and buy a bottle of radiator cleaner. The stuff that you add to your coolant and run through your system for a couple days. I would do it twice to get all the crud. when I did mine the stuff that came out was pretty nasty, went through 2 heater cores before I did it. Make sure you follow directions on the bottle you buy. To get all the water out your system you need to take out plugs on block, very important step, or you will not get the biggest chunks. When you do pull the plug you might not have water come out at first but believe me its in there. I had a thick crust covering my drain from the inside! That was corrosion that had settled there and I had to knock it out, then the water poured out. After the cleaner has been run through and drained, fill with water then run your car for about 15min. drain again(engine block plug and all) then fill again run car and drain again. Do the fill and drain about 4 times or until you get nothing coming out. When you do your final fill use anti-freeze and Distilled water tap water has minerals that will attack your block and you will be back in the same boat in the near future. Remember to change coolant regularly and avoid having to flush your system. Hope that was what you where looking for and I hope I could be of some help.

Posted on Dec 30, 2010


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