No Power
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Joined: Feb 2009
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From: smokies
No Power
I'm at my wits end. I have a 2000 3/4 ton with six speed manual. Truck starts and is driveable, just no power. Like the turbo never kicks in. On rare occasions - turbo will suddenly kick in and push you back in the seat.
I was told it could be a fuel pressure problem with lift pump. pump puts out 17 psi - in spec. Pulled the turbo, and waste gate will not open easily. With the waste gate stuck closed, I should be worried about the thing blowing up, not failing to kick in, right?
This truck has spent a lot of the last three years sitting in the garage. It belonged to my son, who was killed in Afghanistan in 05. Truck has less than a 90,000 miles. Any help I can get trying to solve this is appriciated. I can not not afford to take it to some high priced shop - am retired living on VA pension.
I was told it could be a fuel pressure problem with lift pump. pump puts out 17 psi - in spec. Pulled the turbo, and waste gate will not open easily. With the waste gate stuck closed, I should be worried about the thing blowing up, not failing to kick in, right?
This truck has spent a lot of the last three years sitting in the garage. It belonged to my son, who was killed in Afghanistan in 05. Truck has less than a 90,000 miles. Any help I can get trying to solve this is appriciated. I can not not afford to take it to some high priced shop - am retired living on VA pension.
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Joined: Jan 2005
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From: Yuba city Kalifornia
Did you change the fuel filter? How do you now the turbo has no boost? do you have gauges?
Im not sure if 2000 can read codes but you can try this ....turn key on -off-on-off -on dont start watch ODOMETER it will read a series of codes (if 2000 will ) 2001 will read like this if not you can try to go to autozone and get the codes pulled most times free. let us know we can help you
and welcome to DTR
PS sorry to hear about your son another hero lost God bless
Im not sure if 2000 can read codes but you can try this ....turn key on -off-on-off -on dont start watch ODOMETER it will read a series of codes (if 2000 will ) 2001 will read like this if not you can try to go to autozone and get the codes pulled most times free. let us know we can help you
and welcome to DTR
PS sorry to hear about your son another hero lost God bless
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From: smokies
truck is a six manual. Tested waste gate off the turbo - book says it should start to move at 19.5 psi. At twenty-five , nada.
Don't know that turbo is not working, no guages. Just no power - except every now and then it will shove you back into the seat.
Don't know that turbo is not working, no guages. Just no power - except every now and then it will shove you back into the seat.
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Joined: Jan 2005
Posts: 3,899
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From: Yuba city Kalifornia
i wouldn't worry about the waste gate it probably is stuck from sitting you can try and free it up with a lube, but the torque management system makes these trucks seem slow and depending on the load you might not feel the turbo all the time I would put some miles on it the biggest problem with these truck is the VP44 injector pumps (electronics) if your not showing codes it sounds like all is normal
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Cummins Guru
Joined: Feb 2008
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From: Sunny Southern California Land of Fruits and Nuts
Sounds like bad boost sensor, I would have sensors scanned and see what boost pressure your getting. If ECM isn't getting boost signal it will defuel engine.
Vehicle Issue No Power, No boost, No codes. Check Map Operation. 98-00;No power. No boost, boost pressure does not change. No codes. Check the fuel transfer pump operation. Reference TSB 14-002-03. When replacing a transfer pump inspect the line between the transfer pump inlet quick disconnect and the pump inlet banjo fitting for a ball bearing in the inlet banjo bolt. Remove the ball bearing if there is one there. It will cause a inlet restriction that is undetectable when checking inlet restriction.
System or Component Lack of Power / Sluggish,Loses Power;Customer Concern (No DTCs);Manifold Absolute Sensor (MAP);During Warm Up,Normal Operating Temperature;Target Idle to 1500,1500 to 2000;Light Throttle,Moderate Throttle,Hard Throttle - Aggressive,Wide Open Throttle / WOT;Lower Speed / Below 25 MPH ( 40 KPH ),Moderate Speed / 25 - 50 MPH ( 40 - 80 KPH );Acceleration,Launch From a Stop;Yes - Intermittent,Yes - Continuously;Key on MAP Voltage Below 4.5 Volts
Recommendation Inspect and or replace boost pressure (MAP) sensor... Boost pressure will be at minimum with the key ON / engine OFF and at idle. Boost pressure should increase with the load on the engine (not higher engine rpm). The 1998 through 2000 MY trucks will display boost pressure on the DRBIII® like a manual pressure gauge. Zero (0) to 20 PSI is the normal operating range. The voltage reading at sea level at key on should be about 0.5 volts. TEST: With the MAP (BOOST PRESS) sensor disconnected, the DRBIII® should show zero (0) volts. With a paper clip or other suitable jumper, connect the sensor 5 volt feed to the signal wire and the DRBIII® should show 5 volts. If this is okay, replace the MAP sensor. NOTE: MAP sensor operation can also be checked by pressurizing the intake system using tool #8442 or #9022.
Vehicle Issue No Power, No boost, No codes. Check Map Operation. 98-00;No power. No boost, boost pressure does not change. No codes. Check the fuel transfer pump operation. Reference TSB 14-002-03. When replacing a transfer pump inspect the line between the transfer pump inlet quick disconnect and the pump inlet banjo fitting for a ball bearing in the inlet banjo bolt. Remove the ball bearing if there is one there. It will cause a inlet restriction that is undetectable when checking inlet restriction.
System or Component Lack of Power / Sluggish,Loses Power;Customer Concern (No DTCs);Manifold Absolute Sensor (MAP);During Warm Up,Normal Operating Temperature;Target Idle to 1500,1500 to 2000;Light Throttle,Moderate Throttle,Hard Throttle - Aggressive,Wide Open Throttle / WOT;Lower Speed / Below 25 MPH ( 40 KPH ),Moderate Speed / 25 - 50 MPH ( 40 - 80 KPH );Acceleration,Launch From a Stop;Yes - Intermittent,Yes - Continuously;Key on MAP Voltage Below 4.5 Volts
Recommendation Inspect and or replace boost pressure (MAP) sensor... Boost pressure will be at minimum with the key ON / engine OFF and at idle. Boost pressure should increase with the load on the engine (not higher engine rpm). The 1998 through 2000 MY trucks will display boost pressure on the DRBIII® like a manual pressure gauge. Zero (0) to 20 PSI is the normal operating range. The voltage reading at sea level at key on should be about 0.5 volts. TEST: With the MAP (BOOST PRESS) sensor disconnected, the DRBIII® should show zero (0) volts. With a paper clip or other suitable jumper, connect the sensor 5 volt feed to the signal wire and the DRBIII® should show 5 volts. If this is okay, replace the MAP sensor. NOTE: MAP sensor operation can also be checked by pressurizing the intake system using tool #8442 or #9022.
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