need help. please tell me it is nothing serious. i was driving my truck today and when i put my foot to the floor it ran great for about 5 seconds then it started to lose power big time. it couldnt even hardly hold 70 mph. it started to do it more often as the night went on. i was thinking maybe water freezing in my filter or the lift pump is going out. it is only 27 so the fuel geling shouldnt be a problem

 

ya got any guages?? Im guessing no, but yeah i would say lift pump

 

i have a pyrometer and a boost guage but i dont have a fuel pressure guage.

 

second lift pump

 

that's exactly what mine did when the lift pump went, take care of that right away!

 

i think i must have just had some water in my fuel because i ran the tank out, filled it up and put some additive in it. i have gone about 300 miles and no problems so i guess we will see.

 

Enough water in the fuel to make it run poorly should have turned the water in fuel light on. You may want to get a gauge on there to make sure your lift pump is doing its' thing. When my 93 did this, I ran some cleaner/cetane additive and changed the fuel filter, got better for a little while but then died off again. not too long after that I changed my lift pump, worked good for a little while until my injection pump gave up the ghost.

change your lift pump, it's around $70. and put a pressure gauge in there. an injection pump is around $1,000 and will find the least opportune time to go.

 

well my truck started to run like **** again last night so i went ahead and bought a lift pump. i will put it on and see what happens. is there anything i can screw up when i put it on