My 1998 dog dog ram van lose power going up hill

#1

when i tried to go up hill the speed will go down to 10m/h ,and sometime while on flat land the truck cant pass 30m/h.

#2

Have the fuel pump pressure tested to determine if it’s within specs.

Tester

#3

Of course, change the fuel filter, first. A dirty fuel filter can reduce fuel flow.

#4

You can also get the computer codes read and maybe there will be some kind of hint coming out. There are many things that will cause low power.