no power to fuel pump

myron1220
0

Asked by myron1220 Mar 14, 2010 at 09:35 AM about the 2000 GMC Sonoma SLS Ext Cab Short Bed 2WD

Question type: Maintenance & Repair

were is the fuel pump fuse

4 Answers

Mike Bonnell
6,745

It does not have one per se - It has a Fuel Pump relay controled by the ECM "B" fuse and the ECM/PCM itself. The relay is in the underhood relay box. 30 will be hot all the time 85 is your key. It will become hot for 3 seconds when the key is initially put on. It will stay alive when the key is in the run or on positionb if the ECM/PCM is working correctly. If everything there is okay then its a ground problem at G102 or G402 or Wiring issue to the pump Good Luck

26 out of 26 people think this is helpful.
parkle
190

I need to know what the box above the fuel filter is under the chassie that has wires coming from a switch looking box I guess that's what you'd call it...it's square

11 out of 11 people think this is helpful.
parkle
190

it is a 1993 gmc sonoma..it'll start then die out then won't satrt for awhile then do nthe same thing over again

7 out of 7 people think this is helpful.
parkle
190

Found out it is a box that contolls the air bags and also has an a b c d wires so it is the box that went bad..thanks anyway

1 out of 1 people think this is helpful.

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