Question about 1995 Chevrolet Silverado 2500
Any time the check engine light is flashing the engine is missing, that is part of the resign for the black smoke and raw fuel, there is only two things that can cause this on a diesel ( other then a bad engine ) but in the fuel system it has to be a problem with the injection pump or the injectors and on the 6.2 my best guess would be the injectors, we used to replace allot of both but as you know it has been awhile sense we have seen any of the 6.2 it been awhile sense GM used them and that is because there was allot of problems with them, the most common problem we have seen lately is the pumps failing because of the new low sulfur fuel if you replace the pump the new one will be set up to handle the new fuel, but i think you have a bad fuel injector, you can test the pump housing pressure by installing a pressure gage in the test port on the side of the pump the pressure should be no more the 12 psi if it is replace the pump if the housing pressure is good replace the injectors.
Posted on Mar 21, 2011
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Posted on Jan 02, 2017
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