no power to fuel pump

myron1220
0

Asked by 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
9,885

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

35 out of 35 people think this is helpful.
parkle
510

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

24 out of 24 people think this is helpful.
parkle
510

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

23 out of 23 people think this is helpful.
parkle
510

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

4 out of 4 people think this is helpful.

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