By putting new spark plugs in the car will it help the car go up steep hills better
Jun 3, 2010 at 9:20 PM
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RASMATAZ
CERTIFIED EXPERT
75,992 POSTS
Check your engine compression to determine its condition-its useless to put new plugs if you have an engine problem. If it hasn't been replaced for a long time change it and see what happens but there's other things that will cause loss of power