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Old 08-11-2002, 05:26 AM
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Post Transmission fluid in motor oil?

I have a 94 Ranger shortbed with 4L six and automatic transmission. For months I lost transmission fluid but could never find it leaking if I parked it on concrete etc. I thought that it was blowing out at the front seal at highway speeds only or such. Recently I changed my oil and it seemed thinner, and instead of the normal black it has a red tinge. Now after my oil change I am showing a quart extra or so and the oil again has a reddish tinge.

I thought the only way this could happen would be through the modulator valve, but if enough fluid is getting into the engine through there, wouldnt it steady smoke from the burning transmission fluid getting into the intake stream?

any help is appreciated..

Edge Crum..

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Old 08-11-2002, 05:20 PM
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reddish, thats gotta be tranny fluid, but how? somebody swap a tranny cooler line for an oil cooler? somekind of tranny vent hose in the same area as a motor vent hose? This ones real interesting I just dont see how! doubt if it cud be vacum modulator, ud be buring it in that case... tranny fluid smells real nasty burned, try it sometime... torqe converter ppilot into end of crank leaking combined with casting porosity in the crank ... i dunno enough about this perticular tranny, but its a standard design, torqe converter bolts to flexplate, only tranny oil hoses there shud be, is the kooler lines, right?
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Old 08-13-2002, 02:29 AM
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Red face

You are gonna wanna check your Cooling lines between the engine oil and the transmission. From what i gathered thats basiclly the only reason u could be getting fluid in your oil. Follow the lines out of the transmission back to the cooler(towards the radiator)and from there to where ever the other half of the hose goes to. Check to see if it is crossed with the oil line or is tied in some how. Thats the only way i could explain the fluid leakin into the engine oil and u still having your gears working properly. The engine oil wont last for long in the transmission if thats the case,(the lines being crossed from the cooler!) Sorry to hear that You gots problem! Its a good truck though!
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