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Re: Tranny cooler question
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Ok...why, exactly, would it be a big mess?
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What FordMasterTech said. Remember where you wrote: "it's the rear metal line(on the passenger side) that then joins up with another line just like it that attaches to the front of the tranny, correct?"
That "other line just like" it is the bypass line. The bypass valve is on the front of the tranny, where that bypass line connects to the tranny in the same place as the cooler hot line. The connection on both ends of the bypass line is called a "banjo" connection - where two lines are connected together and become one.
When the ATF is cold, the bypass valve sends it right back into the back of the tranny instead of to the coolers. When it tries to go back into the tranny, you have it disconnected right there, so the cold bypassed ATF squirts out onto the driveway instead of turning the corner and going back into the tranny.
Tecnhically, the bypass valve works on pressure, not temp. But the effect is that hot ATF goes to the coolers and cold ATF bypasses the coolers and goes right back into the rear of the tranny. [img]/ubbthreads/images/graemlins/warmsmile.gif[/img]
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My Sierra Blanca in the sig pic was a great pickup for 11.5 years. I sold it last year. Replacement is a 2012 F-150 EcoBoost SuperCrew Lariat.
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