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I think this may be a fuel pump, but I'd like to know other's thoughts too. My Chevy 1500 series '94 has lost acceleration. It won't go beyond 5 mph and had to be towed. It's not a fuel filter. What else could it be? How can I tell without taking it in?
manual transmission
new alternator and serpentine belt
140,000 miles
Hi nelleth! There aren't enough details here to help you pin down the problem. If the engine runs normally you are probably working with a transmission problem. If the engine runs poorly and won't rev properly you could be looking at a fuel chain issue. You should probably have someone look at it at this point. Good luck!