Question about GMC Suburban
If you are sure that problem is fuel cutting off (no fuel to injectors), then the problem is related to the fuel pump.
Check first fuel pump relay and fuse (if present). A better test can be done reading volts at fuel pup while problem happens.
If the fuel pump is powered and electrically fine, then check fuel pressure, to understand if fuel lines and pump are definitively OK.
Here a gauge to test the fuel pressure: Lisle 20300.
If you need more help, please give me full info on the vehicle make and model, and possibly more info on how the problem occurrs.
Posted on Nov 10, 2010
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Posted on Jan 02, 2017
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