Question about 1999 Nissan Pathfinder

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I have a 1999 pathfinder the oil is mixing in the radiator after over heating what shall be done how to fix it

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Sounds like head gasket if your lucky,, Did you run it hot // At worst cracked head but hope not...

Posted on Jan 05, 2013

Testimonial: "it seems it may be only gaskit."

  • Valencia Griffin Sep 17, 2013

    Changed the head gaskit, but pr

  • Valencia Griffin Sep 17, 2013

    Changed the head gaskit and the problem is still there, no overheating though, only that the water is leaking out some place and mixing with the oil.



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87 pathfinder overheating replaced thermostat hoses are good resevoir has cracks in it though could this cause over heat ?

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If the engine over heats but the temp gauge reads normal then bleed the air lock out of the cooling system
if it over heats at high speed then check the core fins are no falling off or there is nothing in front of the radiator preventing air flow,or check hat it is engaging overdrive,

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Hi, i have automatic passat 1999 model and recently water happens to get into the gear box and it control board, i experiences a boom sound anytime the gear is changed, the oil has been changed by the...

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Cooling fluid mixed with oil

Not good, or easy fix. Many things can cause this. Hopefully, its a gasket on the intake manifold. If not that then Head gaskets. From there, you have cracked heads/block. If you have an oil cooler in the radiator, I have seen them leak and cause this also.

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Burning oil 240k recent problem last 5oook

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Engine over heat

This engine could over heat for several reasons. here are a few things to check check and make sure that the radiator fan is working . check and make sure that coolant is filled in radiator check the lower radiator hose it should be hot when vehicle is hot if it NOT then thermostat may be stuck closed and that will be the reason for over heating. If all of the above is good then check for oil and antifreeze mixing. If it is mixing in oil it would look like a milk shake. Look for white smoke from tail pipe. Contact if you need more help thanks for using FIX YA

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Everyone automatically assumes that oil and water mixing means a blown head gasket or cracked engine block. Of course common sense is usually not that common. Oil in coolant is a different problem than coolant in oil. The former is a low pressure leak, and could indicate only an intake manifold gasket. It could also be an early or small head gasket leak. Coolant in oil is usually a cracked block or torn head gasket, and has concomitant symptoms of white exhaust smoke and milky oil on dipstick. If you replace the head gasket and the problem persists, an intake gasket could have fixed the problem.

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1999 plymouth voyager water in trani fluid

your radiator has another little radiator inside the main radiator this is called transmission cooler seems to be than the cooler has a hole or is broken the main reason for this to happend is becasue the antifreeze or coolant is not been serviced at least every 50k miles or when you mix wo diferent coolants like diferent colors they get contaminated and create acids and start corrosion in the coolant system have the radiator replaced and flush the cooling system wiht lost of water then add only the designated antifreeze on greeen coolant 50/50 mix they sell it allready mix but if you but the one is not mix mix it with 50/50 coolant and destilated water but i recomend to buy 50/50/ green coolant

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