1998 Gmc Sonoma Fuel Pump Wiring Diagram
no power to fuel pump
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
9 Answers
Mike answered 11 years ago
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
62 people found this helpful.
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
55 people found this helpful.
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
43 people found this helpful.
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
7 people found this helpful.
My fuel pump furs keeps blowing why
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Why does my fuel pump relay keep blowing
12 people found this helpful.
I have a 96 sonoma 2.2 liter where is the fuel pump relay located. My truck starts and then some times when it quits I can go out and it will start again.Dont want to get stuck anymore so need help finding the relay. Please someone help me with this. Thank you
28 people found this helpful.
EECMB fuse blowing I found wires running from fuse box to rear of truck thay look like thay where going to fuel. I replaced fuel pump only thing is the fuel pump touches the bottom of the fuel.. well I put it in anyway. Si primed pump truck starting right up ran for about 10 min and stopped ecmb fuse. Replaced checked wires under drivers sear and injector wires drove it for a mile and it stopped running. So know I'm running 10gage wires to ground on fire that goes to ECM ground from and ground to manifold . My big question is the fuel pump touching fuel tank bottom who is that house ecmb fuse to blow my next step is to check fuel pump relay . I did ground everything to to negative on battery to insure a good ground . Am u going in the right durection
14 people found this helpful.
No power to fuel pump at times
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