Fuel Problem? Pump?

[tj37]

Hello everyone. I am having trouble with my 94 4.0 ohv ranger. I think it's the fuel pump but im not sure. Sometimes it will run ok but then it will start to cut out. I'll be going along and it will loose power. I can put my foot to the floor and go about 25. It will get a little gas but it wil buck like a bronco(horse not suv) until I can get it off of the road. It will usually start but sometimes it wont even do that. I switched out the fuel pump relay and thought it fixed it but I was wrong. Does anyone know what might be causing this? I just wanted to make sure that I am getting the right thing before I drop $100+ on a fuel pump.

Also, if it is the fuel pump, is there a aftermarket fuel pump that isnt quite as pricey as the OEM? I know where there is a cheap holley pump but I am used to old carb engines and I dont know how that would work with the computer.

Any help is appriciated.

Thanks,

 

[Brandon Nootenboom]

Have ya tried replacing the fuel filter? I had a similar problem but not as bad with my 91 Explorer, I replaced the fuel filter and ran a bottle of injector cleaner through on a half tank of gas. Seemed to make things better. The filter was like $8 but the set of quick line disconnects was almost $30

 

[ordiee]

My 94 Ranger is doing the same exact thing. I just changed the filter, the relay, checked the cutoff switch, and repalced the coil pack. I am guessing it is the fuel pump but am not sure yet.

 

[tj37]

Well since I havent got a code reader and cant get it to Advance, let alone find the time to trace the wiring harness. Does anyone have any other ideas of what it might be? Could it still be the fuel pump even though it starts sometimes when you turn the key and it runs better with the MAF unplugged?

I need to get this problem figured out.