1989 Mazda B2200

November 25, 2006 9:04pm CST
My truck has no power going up hills.It guts out, shudders and just doesn't run well even in low.Changed the plugs,coil and wires wondering about a fuel problem??Seems to run really well up to 60 km/hr then will shudder between 60-80 on flat.Truck is automatic 132000 km just bought two weeks ago not sure where to go with this?
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