1999 GMC Jimmy Logo
Anonymous Posted on Apr 05, 2013

Fuel pump no fuel pressure cannot hear fuel pump dese it have a fuse

1 Answer

Jeremy W.

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.

  • GMC Master 5,332 Answers
  • Posted on Apr 05, 2013
Jeremy W.
GMC Master
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.

Joined: Sep 24, 2010
Answers
5332
Questions
0
Helped
2060055
Points
17799

The fuel pump is supplied power via the fuel pump relay. The relay gets power for the fuel pump through the ECM B fuse. This fuse also supplies power to the vehicle control module.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
2answers

1999 chrysler 3.5 lhs fuel not going to injectors

Then your fuel pump is not working, or your fuel filter is blocked. You will probably have to check your fuel pump circuit if you have no fuel pressure in the fuel rail, where the injectors sit. There is a fuse for the pump, usually in the under hood fuse/relay block. That is probably also where the fuel pump relay is located. You should hear or feel this relay click when the ignition key is cycled from off to on. Also, when the key is turned to on, you should hear the fuel pump in the gas tank turn on for about 2 seconds. This will put the pressure in the gas in the fuel rail, for starting the engine. If you don't hear the pump turn on for that 2 second period, it is probably a bad fuel pump. But know the fuse is good first.
1helpful
1answer

Car ran out of gas and has been hard to crank every since. I don't hear the fuel pump prime but I do hear the relay click. There is no gas expelled or pressure coming from schrader valve and also batt

the fuel pump is burnt out. the pump uses the fuel to cool itself. running low fuel the pump heats up and burns the plastic gears inside. thats why the fuse blew. need to take out gas tank to change pump.
0helpful
1answer

1997 grand cherokee has spark can hear injecters no fuel pressure cant hear pump

Look at fuses and fuel pump relay in by fuses Remove relay from another area and put it in to try it
0helpful
1answer

My denali ran out of gas yesterday, I put almost 1/2 tank of gas in truck and it still doesn't start, I was told to check my fuses but I only see a relay that's related to the fuel pump, is there...

You should be able to hear the pump run only when the key is first turned on for a second or 2. I would say the fuel pump is out. this happens when you run the gas out it can prematurely wear out the pump impeller. If you can hear the pump fire up check the fuel pressure at the fuel rail. the pressure for most GMs should be at least 33lbs to 50lbs if it is below this pinch off the return fuel line and recheck pressure. if under you have a bad fuel pump.
Thanks for using FixYa Hope this helps you out
0helpful
1answer

07 520 wont start no fuel pressure any ideas what sensor builds fuel pressure

First thing I would check is the fuel pump...Without starting the engine - what do you hear when you turn the key off and on?

Wait a few seconds between turning key off/on...you should hear the pump run and then stop; this is the pump reaching fuel pressure.

If the pump is not running; check fuses.

If fuses are good, check for restriction in the fuel line...posibble clogged fuel filter.

Mike...
0helpful
2answers

I was driving approx. 70mph when vehicle stopped. I put in 3 gallons of fuel and was still unable to get it to restart. Vehicle cranks and attempts to turn over but no fuel is reaching the engine

let a little fuel get into the intake and see if it tries to start. If after checking the fuel relay and fuel filter, you probably have a bad fuel pump. If you have access to a fuel pressure gauge, hook it up to the fuel rail and see what the fuel pressure is. If the cranking pressure is more than about 5psi below the recomended pressure it will not start because the injectors need a certain pressure to open..
0helpful
1answer

Truck will not start

Check the fuse to the fuel pump and check the fuel pump relay. Also check the fuel pressure at the shredder valve, there should be 60PSI to 65PSI when the ignition key is in the run position and the fuel line is pressurized. The other thing to is make sure all the other fuses are good. Good luck and keep me posted, be glad to help.
0helpful
1answer

1995 GMC Jimmy

The fuel filter may be dirty and not permitting the proper fuel flow, or the Fuel pump may have gone bad. If you turn the ignition on with the window open or your standing out side you should hear the fuel pump pressurize the fuel line for 3 seconds. If you think you didn't hear it you can try  again. If you do not hear it check the fuses to the ECM and Fuel pump. The fuel pump relay is in the glove box behind a panel that say relays. there are three of them, switch the relays around to make sure the relay did not go bad and i think the middle relay is the one for the fuel pump. The last thing would be to check is the fuel pressure, there should be 60 to 65 PSI when the system is pressurized and you can check that at the shredder valve on the fuel line towards the rear of the engine on the drivers side.
Ok lets recap, Check and listen for the fuel pump, if you can not hear it check the fuses and relays. oh and almost forgot there is a wire harness from the frame to the gas tank on the drivers side that may also be corroded, check for loose connection.
If you can hear the fuel pump, change the fuel filter and check the fuel pressure at the shredder valve, your going to have to rent a fuel pressure gauge to connect to the shredder valve. IF you want to save some money, just change the filter and if that did not help then check the fuel pressure.
Good luck and keep me posted
3helpful
2answers

I think my fuel pumps gone??

Stand outside your car when it's quiet. Turn the key on (so the dash lights come on), and listen. You should hear almost like a buzzing or humming sound from the back of the car. Thats the fuel pump pressurizing the fuel system. If you dont hear it, the pump's not working. Check your fuses first, the fuel pump does have a fuse in the fuse box.
Not finding what you are looking for?

383 views

Ask a Question

Usually answered in minutes!

Top GMC Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

john h

Level 3 Expert

29494 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

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

Answer questions

Manuals & User Guides

Loading...