Question about Cars & Trucks

1 Answer

I have an 03 chevy 3500 with 6.6 no power going to fuel pump changed relay and still nothing any thoughts

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Cars & Trucks Master
  • 21,873 Answers

The engine computer powers the pump relay to turn it on, and then it gets power from a 20amp fuse marked ECM B in the box near the battery.
Are you getting power to the relay ?

Posted on Jul 24, 2013

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 979 Answers

SOURCE: 1996 CADILLAC DEVILLE, NO POWER TO FUEL PUMP

Check for a burned fusible link under the hood. If you have power at the fuel pump relay, you could have a bad ignition switch or bad oil pressure switch...accordianman

Posted on Dec 15, 2008

  • 1 Answer

SOURCE: 2005 Chevy express Fuel pump relay meltdown 6.0L

i need diagram for fuse box 1998 chevy van

Posted on Jan 26, 2009

GM Elec
  • 1000 Answers

SOURCE: 92 Chevy Suburban Electrical Fuel System

I assume the fuel pump fuse is good?
The only time voltage will be sent to the fuel pump will be the first 2 to 3 seconds if the starter is not engaged. You will want to crank the engine over and check for voltage on the load side of the relay, circuit #30 at the relay.
Let me know after you check.
Regards,

Posted on Feb 23, 2009

  • 20 Answers

SOURCE: 92 chevy astro van fuel pump and relay

Injectors or Carb? is there fuel presurt to the line near the engine and what is the presure.
The mechanoc was it a shop or buddy at home? Can you hear the fuel pump run when the key is turned on?

Posted on Jun 02, 2009

shocktroop40
  • 155 Answers

SOURCE: fuel pump wiring diagram for 1998 chevy express

Well if theres power going to the relay but not out, then you need a new relay. If theres power in and out of the relay, you might need a new fuel pump. The electric fuel pumps inside the tank are actually lubricated by the fuel as it pumps it, and if it runs dry long enough, it can burn out the pump

Posted on Aug 03, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2008 chevy express 3500 6.0 fuel pump no power was driving it and it just quit replaced pump still nothing just cranks over


Engine cranking, did you check for spark at the plugs, also, check fuel injector pulse. Any applicable trouble codes?
When you first turn on the key, no crank, can you hear the pump run for a couple seconds?
If only a fuel issue, jump the relay to see if pump will run. Unplug relay, use jumper wire between terminals 30 and 87, the pump should run, don't need to use your key. As you can see, terminal 30 is hot all the time. Also, check that fuse.
Let us know what you find?

express fuel pump relay-whhyjzqjjp5evwrxcrtcuanz-2-0.jpg

Feb 25, 2017 | 2008 Chevrolet Express

1 Answer

No power to fuel pump in a 2000 chevy truck 3500


How do you know there is no power to the fuel pump ? Your fuel pump electrical circuit is the same as on this video > check it out ! GM Fuel Pump Relay Testing

http://www.bbbind.com/free_tsb.html go here an check out the wiring diagram .

Jan 21, 2016 | Cars & Trucks

1 Answer

Drove van,parked, then it would crank but not start? I check the power to fuel pump, none. no power to injectors either I've change relays, sensors and power control module and still nothing, please h


Check your owners manual for a fuel shut off button/reset, normally found somewhere in the back interior of the van near the gas tank fill. If you still don't get power, try checking your fuses, make sure you check for two fuse panels....one maybe under the hood and one under the dash. Check them using a lighted probe on both sides of the fuse. Also Google 1994 dodge ram 3500 wiring diagram, much found when I did it! I hope this helps!

Sep 07, 2014 | 1994 Dodge Ram 3500

1 Answer

2002 chevy 3500 duramax 6.6 ran hot now cranks but won't start


Check spark plugs, leads, distributor cap & rotor arm, fuel pump, fuel filter, coil pack(s), relays, replace any items that are suspect IE Fuel filter which has probably not been changed since new even though they should be changed on all vehicles every 18 months, all of this can be done at home & will save you a lot of bucks in mechanic/garage fees,

Sep 21, 2012 | 2002 Chevrolet Silverado 3500

1 Answer

My 03 chevy 3500 express keeps cutting off while driving sometimes hard to start back up once off and other times it starts right up with no problems need help please


Check your fuel pump relay most of the time its located inside the glove box behind a removeable panal .The way chevy did the power routing for the fuel system is a little strange . What they did is back up the power so they but it on a split curcuit that is supplyed from the fuse box i belive its fuse #4 but don't quot me on it for your vehicle but the power runs to the relay and also is rooted through the oil pressure sending unit and they bolth go to the fuel pump. The problem could be the fuel pump but if the relay was bad the vehicle would still start and run it would just be a longer cranking time because the oil pressure needs to build up enough to trip that switch to send power to the fuel pump . Honstly the fuel pumps had wireing problems and only lasted 10 years or so . There a pain to do you need to drop the tank but the replacement ones have many upgrades to the wireing hanrests as well as internial parts in the pump it self. So in a nut shell check the relay and the oil pressure sending unit first then seeif you can play with the connector to the pump to make the problem go away also check your fuel filter make sure its not clogged. GOOD LUCK WITH IT

Aug 14, 2011 | Chevrolet 3500 Cars & Trucks

3 Answers

My 1993 Chevy 350 fuel injected pickup just quit


Check to see if there is any power getting to the fuel pump, if there is 12 volts going to the fuel pump then replace the pump, if there is no voltage present, the problem could be the fuel pump relay, a fuse, or a break in the wiring.

Jan 23, 2010 | 1993 Chevrolet C/K 3500

1 Answer

I have a 97 Chevy Express that will not start but the fuel pump tests OK but you cannot hear it. There is no power going to pump. Relay and fuses are good, computer was changed and programmed. The oil and...


The crank sensor is only an impuls unit that gives current to the coil pack.has nothing to do with the fuel system.Try changing the relay if you are getting no power to the pump and only one live connection.

Jul 07, 2009 | 1997 Chevrolet K1500

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

53 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76673 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...