Hey y'all, searching out some help from the more experienced than me;
Been having this intermittent issue with my truck since the moment I purchased it, sometimes the rig runs excellent, plenty of power, and will pull like a freight train on the hills in my area while other times it's down on power.
I've yet to get my hands on a fuel pressure gauge, but here's what I've done so far:
•Replaced both spin on filters with baldwins (less than 500 miles)
•Replaced fuel line running under radiator from primary to secondary fuel filters (it was kinked)
•Turned up the fuel 2 flats
•Turned fuel down 4 flats, bypassed FDC, verified fuel lines were in decent shape running from pump and surrounding areas (to and from filters etc)
Previous owner:
•dropped tank couple years back, cleaned it out & installed Parker pump
•replaced fuel injector return lines
•replaced frame fuel line with newer push lock style hoses
Truck runs great sometimes, excellent power off idle to governed speed, and may run good 5 miles, to 40 miles, but if driven long enough suddenly anything over 18-1900 rpm truck seems to fall flat on its face starving for fuel, sputtering slightly sounding like the exhaust note is breaking up. Can barely make 45 mph on flat ground wide open when running bad, can normally hit 55-60 no problem. Will surge slightly when backing off the pedal.
Any tips, suggestions or info would be appreciated!
1974 AM General M109A3 w/Deuce Bed, White LDT, Whistler C, and soft top
Been having this intermittent issue with my truck since the moment I purchased it, sometimes the rig runs excellent, plenty of power, and will pull like a freight train on the hills in my area while other times it's down on power.
I've yet to get my hands on a fuel pressure gauge, but here's what I've done so far:
•Replaced both spin on filters with baldwins (less than 500 miles)
•Replaced fuel line running under radiator from primary to secondary fuel filters (it was kinked)
•Turned up the fuel 2 flats
•Turned fuel down 4 flats, bypassed FDC, verified fuel lines were in decent shape running from pump and surrounding areas (to and from filters etc)
Previous owner:
•dropped tank couple years back, cleaned it out & installed Parker pump
•replaced fuel injector return lines
•replaced frame fuel line with newer push lock style hoses
Truck runs great sometimes, excellent power off idle to governed speed, and may run good 5 miles, to 40 miles, but if driven long enough suddenly anything over 18-1900 rpm truck seems to fall flat on its face starving for fuel, sputtering slightly sounding like the exhaust note is breaking up. Can barely make 45 mph on flat ground wide open when running bad, can normally hit 55-60 no problem. Will surge slightly when backing off the pedal.
Any tips, suggestions or info would be appreciated!
1974 AM General M109A3 w/Deuce Bed, White LDT, Whistler C, and soft top
