MOTOR IS JUMPING "like the fule is full open and closed"
I have a 98 12 valve, #10 fule plate, engine break, 4" exhaust, front of the turbo has been upgraded.
My truck started jumping,jurking, surging ect. seems like it is only doing it when I am towing and at lower speeds under 30 mph, almost like there's a broken throttle spring or something. If I push the clutch in and open the throttle it goes away or if I just romp on the throttle it will stop and run fine for a little bit. WHAT COULD IT BE???????????? |
fuel delivery issue ... check fuel pressure from lift pump to Injection Pump ... let us know what it is
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found that one of the throttle return springs was broken
Also TSB 18-29-97 Rev. A talks about the Vehicle Bucking or Jerking while under light acceleration or driving at a steady speed |
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