wht is my car bucking in higher gears on 1994 Mazda B3000

my Mazda B3000 bucks and surges when accelerating or going uphill. had the fuel filter changed about 2000 miles ago. the car has 127,000 miles

by in Glenwood Springs, CO on March 09, 2010
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1 answer
ANSWER by , March 09, 2010
It sounds like your 1994 Mazda B3000 is suffering from an engine misfire caused by the ignition system, most likely a failed spark plug or spark plug wire. If you do not know how to properly diagnose the ignition system on your B3000 please seek professional help. Please use the following link to find a repair shop near you - http://repairpal.com/glenwood-springs-auto-repair.