Question about 1995 Toyota 4Runner

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Overheating I have a 95 4runner,3.0 just did head gaskets,new water pump and themostat,it runs about half way on temp gauge ,when i go up hills is when it seems to get hot,starts boiling,i used a vac down tool to get air out of system,,any ideas please im stumpped

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  • redlinebilly Mar 12, 2009

    I bought it with a blown head gasket,,I did have the heads checked by a machine runs great but when i climb a hill for a distance it starts to heat up.the fan is working and i flushed rad as good as i could with hose..maybe its clogged in cores were i cant get maybe? Do u know what the average temp should be on the gauage.

  • John Ball May 11, 2010

    Is your radiator good and not plugged?Also check your fan clutch that your fan blade bolts to that it is not worn out.

  • Jack Bowser May 11, 2010

    Check the radiator part of it can be clog up. there is some good do it yourself on the market, Or you take it to a radiator shop to have it clean or gets get a new one . Tip buy distalled water when you are adding or replacing water, nothing but H2O



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Is this the diesel model ? or petrol power? Never lug your diesel engine it will overheat even a new engine. Check your coolant level when engine is cooled down it may need burped. Why the head gasket change? did the head get checked for cracks and surface flatness, could be still leaking combustion pressure gases into the coolant have a test for this

Posted on Mar 11, 2009

  • RodgerT Mar 12, 2009

    Your absolutly right a garden hose radiator flush out won't clean the tubes out it needs chemical help. i reccomend a chemical descaler from a reputable supplier like Donaldson Filtration use as per the instructions. When descale flushed out replenish with premix coolant. Is your muffler clear i have experienced blocked muffler on small automotive diesels they lose power and the exhaust manifold will show signs of running very hot, loosing studs and discoloured. Note the muffler blocks up with dry powdered soot and the perforated pipe sections inside completly close over .



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