When i am going up up a hill the car starts to sputter? on 1999 Ford Taurus

When i am going up up a hill the car starts to slow down andd sputter, but it only happens when going up hill what can i do to fix this? will throwing some gas treatment in help?

by in Stow, OH on August 05, 2012
2 answers 3 comments
ANSWER by on August 05, 2012
do u have a ck eng liyr on? may have to get tested by mech that can read live data on scanner
COMMENT by on August 05, 2012
i dont have a check engine light on
COMMENT by on August 06, 2012
ck for misfire or plugged exhaust system
ANSWER by on January 01, 2013
po430codewhenhookingituptpcomputer
COMMENT by on January 02, 2013
as said catt issue