2005 ford taurus tranny slips going uphill only fine on flat roads?

2005 ford taurus tranny slips going uphill only fine on flat roads? - 1

Then you need a rebuilt tranny. Once an automatic transmission slips it's no good.

Either the fluid is low, or a rebuild will be forthcoming.

Check fluid level. On the Taurus we usually add about a half quart over the correct level due to the transmission problems with this transmission. Find local shop at ATRA.COM FOR MORE Help

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Its either low on fluid for outbox or we have fault with gearbox. Could be as simple as adjusting a brake band or exchange box if clutch discs worn out. Unlikely to be oil actuation hydraulic pressure. See an auto technician for diagnostic checks and quote of fix.