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Q: fuel pressure regulator on 2002 Chevrolet Silverado 2500 HD

2002 Silverado 2500 with 144k miles. While driving less than 60mph the truck will "surge", RPM's will increase and it will jerk forward. From other research it seems that a fuel pressure regulator could be the problem. Is this so? and if not, what could the problem be? It doesn't "surge" constantly, just at various speeds and only if RPM's are below 2k.
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Yes, there is a bulletin for the regulator 03-06-04-010 issued 1/17/2003. However, you need to have the tip of the regulator inspected and if it is 'blackened' the whole injector pump needs to be replaced.
The bulletin also warns about the fuel quality and any additives, as these can cause the surging that you describe. Some times the fuel retailer will use additives that are harmful as well. Hope that this helps.
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