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1999 dodge 2500 deisle looses trottle response

Had a new injector pump installed less than 10000 miles ago. with a new lift pump. cheach engine light is on. not always but now and again as im driveing i loose fuel peddle responce for 3-5 seconds. the engine does not die but has no responce to pressing down on the peddle. After 3-5 seconds the peddle regains its responce as thou it never quit working.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: 1999 GMC Suburban 2500. 454 engine

sounds like fuel pump pressure. I had the same thing happen to me in a Lincoln mark VII and the electrical connection was shorting out in the fuel pump. I changed the fuel pump..Returned under warranty) put the new one on with filter and had no problem with it.

Posted on Oct 10, 2008

Smlslikdsl
  • 12 Answers

SOURCE: 1999 dodge ram 2500 5.9 cummins diesel

Check the fuel pressure at the filter. Odds are the lift pump, located below the filter, is toast. Continual cranking of the motor with a bad LP wil cause the injector pump to heat up and burn out. Replace the LP and fuel filter. Bleed the system by cracking the inlet to the injector pump and bumping the enigine over so the LP will run. Once you have fuel at the injector pump, crack injectors 1,3,and 4. Crank the motor for no more 6 or 7 seconds at a time until it turns over. Give the pump time to cool for a couple of mintues between cranks. This process is easier with two people, one to crank and the other to watch for fuel and tighten the injectors once it starts. If the injector pump is fried at this point from cranking with no fuel, the motor should idle, but will stumble all over itself when the throttle is applied.

-Brandon

Posted on Jan 31, 2009

  • 1 Answer

SOURCE: 2000 chevy silverado 1500 4.3 eng

Chevy Trucks, Blazers, S10 pickup and the like will vapor lock ecspecially the 2000 models. Do not tighten the gas cap past 1 click. There is a tube that runs from the top of the tank down and this gets hot and collapses or burns in half. We just bought a reinforced rubber tube cut it to lengh and use it instead of part and it's worked grat for 2 years so far.

Posted on Feb 01, 2009

  • 131 Answers

SOURCE: '99 chevy Silverado Z71,5.3 engine.....will not rev when hot.....

try replacing your EGR Valve, or your Oxygen Sensor

Posted on Feb 10, 2009

csmock132
  • 4669 Answers

SOURCE: dodge cummins won't start, fuel reaching injector pump but no fuel coming out of injector pump.

You said you have fuel flowing from the inlet line of the injection pump? But not at the injector lines?

Posted on May 05, 2009

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This 1999 dodge 1500 5.9l will start and run fine till about 1500 RPM and then misfires and pings severely. [ CHRYSLER ] Record1 -> 1998~2003 -> PCM -> ECU Information Module of year: ...


Hello.. looks like you are getting good fuel delivery. Is the fuel curve mixture on the scanner in specs? How is the timing, the timing chains on these engines will stretch and throw the timing off causing a ping and missfire -- a weak valve spring is something to consider. Also, the PCM may be faulty. I hope this helps.

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My 2001, 2500 Cummins 4x4 required the lift pump replacement with the new engineered in tank pump. This occured at 58000miles last Dec. Now with another 9000 miles to Alaska and back the injector pump...


sounds like you have a bad one, but , the 2001 model has the LEAST reliable injection system of them all. Secondly you neednt have had to buy the intank supply pump , thats just an upsell, O"Reilly sells a good external pump , installable in 20 min for under $200 As for the injector pump failing , Put a fuel pressure gauge in your dash

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the best advice i can give you is bring it into a warm garage and let it heat up, then treat your fuel with anti gel solution run it through your injectors by running engine and this should not happen again, seems like your lines are gelled up and you don't have proper pressure.

Jan 18, 2010 | 1999 Dodge Ram 2500 4WD

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Sadly, I'm of the same opinion of whoever gave you the last suggestion. Maybe, just maybe, you have a couple of bad plugs, but I'd be looking at the lift pump and possibly injectors/rails.

Jul 13, 2009 | 1999 Dodge Ram 2500 4WD

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1999 dodge diesel 2500 seems to have a fuel related problem.


Please clarify the "loosing power" does it lose power and shut down or does it loose power but will idle? Your Cummins is electronically controlled so oil condition is important, fuel leaks, oil leaks, leaks in the air ducting between the turbo and the intake, sensors, water in the fuel. Do you get an engine light when this trouble happens? Dodge uses a lift pump to carry fuel to the the injection pump, is it working?

May 31, 2009 | 1999 Dodge Ram 2500 4WD

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Dodge cummins won't start, fuel reaching injector pump but no fuel coming out of injector pump.


You said you have fuel flowing from the inlet line of the injection pump? But not at the injector lines?

May 05, 2009 | 1999 Dodge Ram

2 Answers

1999 dodge ram 2500 5.9 cummins diesel.won't start.turns over thats it. put in a new intake fuel pump. still won't start.got fuel to the injectors sometimes.


Check the fuel pressure at the filter. Odds are the lift pump, located below the filter, is toast. Continual cranking of the motor with a bad LP wil cause the injector pump to heat up and burn out. Replace the LP and fuel filter. Bleed the system by cracking the inlet to the injector pump and bumping the enigine over so the LP will run. Once you have fuel at the injector pump, crack injectors 1,3,and 4. Crank the motor for no more 6 or 7 seconds at a time until it turns over. Give the pump time to cool for a couple of mintues between cranks. This process is easier with two people, one to crank and the other to watch for fuel and tighten the injectors once it starts. If the injector pump is fried at this point from cranking with no fuel, the motor should idle, but will stumble all over itself when the throttle is applied.

-Brandon

Jan 11, 2009 | 1999 Dodge Ram 2500 4WD

4 Answers

2004 dodge ram 2500 5.9 diesel hard to start


The lift pump is bad Check the fuel pressure with a test gauge.

Jan 04, 2009 | 2004 Dodge Ram 2500

1 Answer

2001 dodge 2500 diesel 24 valve intermitant hesitation


Have you ever had the mechanical lift pump go out on these vehicles? If the fuel pressure drops under 5psi on the VP44 injection pump for any length of time, the diaphrams get weakened and especailly when the warmer seasons come back, you will notice fuel delivery problems. A new/rebuilt pressure pump is required! Sorry for the bad news, if indeed this is the case. One solution/prevention is to replace the lift pump with the upgraded Mopar (goes into the tank now) or an aftermarket pump like the FASS pump or the like. Anyone that has the VP44 injection pump should upgrade ASAP! This is a common problem on the OEM mechanical lift pump on this particular run of Rams. Need to do it before you run up a costly repair bill later on down the road. The stock/OEM lift pumps WILL go out, sometimes as little as 12k miles, sometimes 50k miles.....I had 3 go out, Stock at 43k, Mopar replacement lasted 31k and the 3rd (aftermarket OEM) lasted 14k. I had a fuel pressure guage installed a very long time ago to alert me of failures. The 4th go around I installed the FASS and now it maintains 21 to 27psi even with chip mods switched to extreme! I am still on original VP44 pump (knock on wood!)
Good Luck!

Dec 15, 2008 | 2001 Dodge Ram 2500 Truck

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