O.T. farm truck

I have a 1993 GMC 1 ton dually 6.5 turbo diesel this has been a good truck and pulled some heavy loads but here lately it will start and run and quit just like it is out of fuel might go a hundred yards or a 100 ft but do it agaain I thought the fuel pump was weak so i replaced it.this truck has been well maintained all new filters any thoughts will be appreciated .
pete

Been battling a simillar problem on a 71 chevy truck, but seem to have gotten it straightend out as of yesterday. Crushed fuel filter because of too heavy a spring in the carb housing was a big one. It had a bunch of other small problems that added up to a pain to diagnose. You might check for kinked rubber or metal fuel lines on the underbody. Sounds like a kink is letting enough fuel to pass to run a short time, but not enough to keep going.

Possible bad lift pump?

Allan

Something in the fuel tank? We had a big old engine do that one time. Turned out to be a grease rag in the fuel tank. Accident? Mischief?

My 82 Chevy 6.2 non-turbo started doing that and found I need to rebuild the injector pump. The governor is breaking up and chokes the valve to the return line on the top of the pump. Very expensive!

plugged vent rebuild job may have been done wrong or as allan thinks lift pump

I'm having the same problem, sort of, with my 1994 6.5L diesel. The "service throttle soon" light comes on, along with 4 different "codes" when I plug in the code reader. Dieselplace.com won't let me ask over there without registering. I registered a few months ago and I don't remember my name and password!!! Won't let me try a new name either. Local dealers are NO help, all they want me to do is "bring it in and we can put it on the machine". Don't know what I'm going to do.

Had the same problem with my 6.9 Diesel F350. Did several things with no help, and then by-passed the water separator and it works fine. Will replace the serarator some day.

check the amount of power coming thru the oil pressure switch to the pump.worked on a 93 gmc that would keep runnig out of fuel.we changed the pump also but later found the swich at the back of the engine was bad.would only send 6 volts to the lift pump

Have a few of these trucks. To tell if lift pump is not working you can usually pull fuel filter on back of engine and if it isn't full it is either the lift pump or the pump switch relay which is part of the oil sending unit. Very common problem. Had one last week that they thought the injection pump was going bad but had good power and smoke once you got it going. Didn't really have a idle problem either as when the pump is going out the engine usually won't idle without a little pedal. Was hard starting when warm also. Starter turned kind of slow and found out that when motor is cold pump only needs 100 rpm to come to pressure and start which would be 200 engine rpm. But when warm it needs 180 to 200 Rpm at the pump which is 400 engine Rpm. Put on new Starter and have since had no problems and starts and runs like champ!

Most likely cause... PMD! Just replaced one my dads truck with a relocation unit I got off E-bay. Check for them there... I think just under $300 for the whole setup. Made in the USA too I beleive!

Easy to see if you're getting fuel to injector pump.Loosen the air bleed cap at top of fuel filter in back of engine and have someone turn on key.Fuel should stream out.

If you have trouble codes you can check on Edge website for them, just follow the links on the site.

www.edgeproducts.com

Kennedy Diesel is very helpful... http://www.kennedydiesel.com

http://www.gm-diesel.com

Codes came from Kennedy's site under tech tips.
Error Codes

NOTE: All DTC(S) with the * sign are automatic transmission (4L80E) related


DTC 13 - Engine Shutoff Solenoid Circuit Fault
DTC 14 - Engine Coolant Temperature (ECT) Sensor Circuit Low (High Temp
Indicated)
DTC 15 - Engine Coolant Temperature (ECT) Sensor Circuit High (Low Temp
Indicated)
DTC 16 - Vehicle Speed Sensor Buffer Fault
DTC 17 - High Resolution Circuit Fault
DTC 18 - Pump Cam Reference Pulse Error
DTC 19 - Crankshaft Position Reference Error
DTC 21 - Accelerator Pedal Position 1 Circuit High
DTC 22 - Accelerator Pedal Position 1 Circuit Low
DTC 23 - Accelerator Pedal Position 1 Circuit Range Fault
*DTC 24 - Vehicle Speed Sensor Circuit Low (Output Speed Signal)
DTC 25 - Accelerator Pedal Position 2 Circuit High
DTC 26 - Accelerator Pedal Position 2 Circuit Low
DTC 27 - Accelerator Pedal Position 2 Circuit Range Fault
*DTC 28 - Transmission Range Pressure Switch Circuit
DTC 29 - Glow Plug Relay Fault
DTC 31 - EGR Control Pressure/Baro Sensor Circuit Low (High Vacuum)
DTC 32 - EGR Circuit Error
DTC 33 - EGR Control Pressure/Baro Sensor Circuit High
DTC 34 - Injection Timing Stepper Motor Fault
DTC 35 - Injection Pulse Width Error (Response Time Short)
DTC 36 - Injection Pulse Width Error (Response Time Long)
*DTC 37 - TCC Brake Switch Stuck "ON"
*DTC 38 - TCC Brake Switch Stuck "OFF"
*DTC 39 - TCC Stuck "OFF"
DTC 41 - Brake Switch Circuit Fault
DTC 42 - Fuel Temperature Circuit Low (High Temp Indicated)
DTC 43 - Fuel Temperature Circuit High (Low Temp Indicated)
DTC 44 - EGR Pulse Width Error
DTC 45 - EGR Vent Error
DTC 46 - Malfunction Indicator Lamp (MIL) Circuit Fault
DTC 47 - Intake Air Temperature Sensor Circuit Low (High Temp Indicated)
DTC 48 - Intake Air Temperature Sensor Circuit High (Low Temp Indicated)
DTC 49 - Service Throttle Soon Lamp Circuit Fault
DTC 51 - PROM Error
*DTC 52 - System Voltage High Long
*DTC 53 - System Voltage High
DTC 54 PCM fuel circuit error
DTC 56 - Injection Pump Calibration Resistor Error
*DTC 57 - PCM 5 Volt Shorted
*DTC 58 - Transmission Fluid Temp Circuit Low
*DTC 59 - Transmission Fluid Temp Circuit High
DTC 61 - Turbo Boost Sensor Circuit High
DTC 62 - Turbo Boost Sensor Circuit Low
DTC 63 - Accelerator Pedal Position 3 Circuit High
DTC 64 - Accelerator Pedal Position 3 Circuit Low
DTC 65 - Accelerator Pedal Position 3 Circuit Range Fault
*DTC 68 - Transmission Component Slipping
*DTC 69 - TCC Stuck "ON"
DTC 71 - Set/Coast Switch Fault (Cruise Control)
*DTC 72 - Vehicle Speed Sensor Circuit Loss (Output Speed Signal)
*DTC 73 - Pressure Control Solenoid Circuit (Current Error)
*DTC 74 - Transmission Input Speed (TIS) Sensor Circuit
*DTC 75 - System Voltage Low
DTC 76 - Resume/Accel Switch Fault (Cruise Control)
DTC 78 - Turbo Wastegate Solenoid Fault
*DTC 79 - Transmission Fluid Over-temperature
*DTC 81 - 2-3 Shift Solenoid Circuit Fault
*DTC 82 - 1-2 Shift Solenoid Circuit Fault
*DTC 83 - TCC PWM Solenoid Circuit Fault
*DTC 84 - Accelerator Pedal Position Circuit Fault
*DTC 85 - Undefined Ratio Error
*DTC 86 - Low Ratio Error
*DTC 87 - High Ratio Error
DTC 88 - TDC (Top Dead Center) Offset Error
DTC 91 - #1 Cylinder Balance Fault
DTC 92 - #2 Cylinder Balance Fault
DTC 93 - #3 Cylinder Balance Fault
DTC 94 - #4 Cylinder Balance Fault
DTC 95 - #5 Cylinder Balance Fault
DTC 96 - #6 Cylinder Balance Fault
DTC 97 - #7 Cylinder Balance Fault
DTC 98 - #8 Cylinder Balance Fault
DTC 99 - Accelerator Pedal Position 2 (5 Volt Reference Fault)