Question about 2000 Chevrolet 2500
Starts and runs but will sometimes die just like u turned the key off. also when pulling a load it will lose power and blow black smoke bad.
Sounds like the injector pump has lots of miles and wear or it has lost its calibration; but before jumping to that conclusion, you should replace the fuel filters first to make certain that the engine is not starved for fuel....when you replace the fuel filter, observer whether there is any water inside it by blowing through one side to see the results... if there is, you likely have more in your tank and it should expelled by draining or removing the tank and cleaning.... There is also a course filter in the tank that could also get clogged.... while you have the fuel filter off you can blow air through the filter port back to the tank and loosen the stuff on the filter... mind you know that this is a temporary fix for trash in the fueltank. Now when you prepare to replace the fuel filter(external) you must follow the procedures for expelling air from the line and filter prior to tightening the fittings. I like to remove the glow plugs(if you have them) to freeup the compression to expell the air any time the fuel lines are opened..This will save your batteries. Your engine will not run until you get all the air out of the fuel lines.
If the fuel injector pump is out of calibration, it will have to be removed and bench calibrated after a bebuild job.
Posted on Jan 04, 2009
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