oil in cooling system

MAZDA MPV
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PAULY6659
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I have a 1994 mazda mpv v6 auto,a/c,115,000miles, replacecomplete front half timing belt,water pump, gaskets,belts,ect. Engine starts and runs good but found oil in the cooling system but no water in the engine or trans oil.Installed external trans cooler,flush out coolant,oil keeps coming out,trans ok.
Maybe oil passage pluged? pcv valve?note when oil filler cap removed engine rpm changes.need help in hawaii
Dec 25, 2006 at 1:02 PM
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MATHIASO
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if you have found transmission fluid in the antifreeze, you may have a leak in the radiator.
Dec 25, 2006 at 4:43 PM
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SERVICE WRITER
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With your idle change, I would suspect a plugged pcv system. Not sure about the coolant in the oil other than cracked block or head ?
Dec 25, 2006 at 7:43 PM
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PAULY6659
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[quote:ede64642ff="mathiaso"]if you have found transmission fluid in the antifreeze, you may have a leak in the radiator.[/quote:ede64642ff]I did bypass the trans cooler and the oil keeps coming out with the water at the raidiator filler.
Dec 25, 2006 at 11:31 PM
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PAULY6659
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[quote:e400a2a6a2="Service Writer"]With your idle change, I would suspect a plugged pcv system. Not sure about the coolant in the oil other than cracked block or head ?[/quote:e400a2a6a2]found NO water in engine or trans oil.
Dec 25, 2006 at 11:34 PM