Question about 1991 Mitsubishi Montero

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Where are the plugs on the side block to flush it out?

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If you're referring to the freeze plugs they are hidden under the exhaust maifolds on the 3.0 V6. From my office I don't know your situation but I have never been a big fan of flushing out engine block (coolant flushes) Often times the flushes will kick up fine debris that has been lying within the block. If ALL of the debis is NOT cleared these particles will circulate within the cooloing systems and will, with time, take out the mechanical seal on your water pump; about a 5 hour fix as its driven by the timing belt. If your having big cooling issues with the block then ok I'd have at it but otherwise I'd stick to cleaning up the radiator, replacing the hoses and keep a fresh antifreeeze mix in the system.

I hope this may have assisted you,
Tom

Posted on Jun 06, 2010

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Where and watch transmission lines locations on the radiator plus which one is the in line and out line to the transmission


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Theres no such thing as a diagram, here are the draining instructions, hope this helps...
  • 1-Place a large drain pan beneath the radiator drain plug. The drain plug is located on the passenger side at the very bottom of the radiator on the engine side.

  • 2-Make sure the engine is cool. Open the hood of the truck and remove the radiator cap.
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  • Read more: How to Drain a Radiator From a 2000 Chevy Blazer ' eHow.com http://www.ehow.com/how_6357264_drain-radiator-2000-chevy-blazer.html#ixzz1VS4RBufX

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    Under the car it looseing antifreeze a freez plug is how to replace and want look like. 2002 chrysle concorde with 2.7


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    Then measure this hole. The easiest type relacement plug is called an expansion type. It is like a rubber stopper that you tighten a bolt in the center of it to expand it/tighten it to the full diameter sealing the cavity. Found at most parts stores. They come in a variety of sizes, so you must try to get extremely close to the actual diamerter of the freeze plug hole in the block/head to make it work. Install new plug into hole pushing rubber portion in all the way until the flat metal washer part of the expansion plug contacts the block/head surface. IT MUST be flush or evenly seated in the freeze plug hole/cavity in the block/head. Tighten center nut on new plug to about 25 ft lbs. This will make the rubber part expand and seal into the hole. Refill coolant, check for leaks. In my experience, if you pop one plug, it is usually in the block first and one will be popped on both sides of the block. Feel around BOTH sides of block to verify all 6 plugs are in place! CAUSE>>
    This is due to water in the coolant system freezing, due to poor coolant system maintenance. The freeze plugs pop out when the frozen water expands preventing the freezing water from cracking your block.You would be money ahead to drain/flush your system and refill with all new 50/50 antifreeze of the type recommended for your vehicle. NEVER put water in your cooling system! Use only in emergency, fix problem then drain and refill with 50/50 coolant! This will prevent this problem from reoccurring and damaging other cooling system components.

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