What would make a truck stall when you start it.. when I crank it up sometimes it's real weak and?

... then it stalls it has been getting worse lately when I rev it up it stays running its almost like I have to keep pressure on the gas sometimes to

... then it stalls it has been getting worse lately when I rev it up it stays running it's almost like I have to keep pressure on the gas sometimes to keep it running is there a way I can test it without buying parts that I might not need

or:... then it stalls it has been getting worse lately when I rev it up it stays running it's almost like I have to keep pressure on the gas sometimes to keep it running is there a way I can test it without buying parts that I might not need


or:lack of information makes this a weird idea. Change these things. Pressure control valve, air filter, if water humidity got into the fuel system then change the gas filter.Do the first two and see if the problem stops. Changing a fuel filter is like time to get a diagnostic book. This is often a chilton manual for your own specific vehicle at a car parts store.

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