Question about 1998 Chevrolet C3500

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Where are the fuses to the Injectors and fuel pump located and the relays?

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  • Chevrolet Master
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Under the hood, they are marked ECM (2)

Posted on Nov 07, 2012

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Posted on Jan 02, 2017

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bunnydawg
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SOURCE: is their a fuse for the fuel pump ( not the fuel

it appears that fuse 30 and the relay right beside it are for the fuel pump. the relay is definately for the fuel pump tho. it's located in the fuse panel inside the engine compartment near the battery.

Robert

Please take a moment to rate this solution.. thanks

Posted on Mar 04, 2009

emissionwiz
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SOURCE: fuel pump relay for a 1994 Chevy Truck WT1500

The Fuel Pump Relay is located in the Glove Box under a little cover on the upper left side. The Fuel Control Relay is the left relay and The Fuel Pump Relay is the right. To test these relays, swap them and then try to start the vehicle, or blow the horn. If the horn blows then use that relay for the pump and you may at least drive the vehicle where needed! If the vehicle starts, then replace them as a pair.

Posted on Apr 27, 2009

  • 1 Answer

SOURCE: trying to locate fuel pump relay for 1991 corvette- coupe

The fuel pump relay in the 1991 corvette is located under the IP on the pass side.
Open pass door, unscrew two screws under the glovebox (you will be upside down in the car), take off the fuse panel, unscrew third screw to plastic plate underneath glovebox, pull away carpet (velcro), pull down plastic plate (watch out for the wiring to the lamp), then under the glovebox you will find a number of fuses and relays if you dive in under there DEEP, prob 4 or 5 in a row, not really sure wich one, but one in the middle is the fuel relay, and they are the same (interchangable).
Take a look at --the12volt.com/relays/relays.asp--
It´s those relays we are talking about.

Posted on Sep 12, 2009

cshubart
  • 146 Answers

SOURCE: need relay location for electric fuel pump on 1991

under the hood or dash

Posted on Sep 26, 2009

  • 1168 Answers

SOURCE: Fuel pump fuse location on an 88 Chevy K1500?

Good evening Michael.
The fuse you are looking for is behind the plastic cover on the firewall on the right side. It may be a little disguised in a fuse holder. It is very near the battery junction box pins and fuse links. It's a 10 amp fuse and it supplies power to the relay for the fuel pump.
Hope this cures your problem.
Thank you for using FixYa!

Posted on Nov 24, 2009

Testimonial: "This was somewhat helpful, I think there is a 20A fuse in it now. I picked the truck up at an auction so no owners manual. Thanks for the info!"

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2 Answers

Car is turning over but not getting fuel ideas anyone thanks


There is not much information for a good answer.
  1. Fuel filter clogged
  2. fuel pump not working [fuse,bad pump,broken wire etc]
  3. computer not telling the pump or injectors to work [should set a code]
  4. dirty injectors

Feb 09, 2015 | Cars & Trucks

1 Answer

1989 f-250 inertia fuel shut-off switch switch location


This should be in the owner's manual. I found the below on autozone.com, their repair help location:
An inertia switch is used as a safety device in the fuel system. The inertia switch is located in the cab, generally under the dashboard on the right side. It is designed to open the fuel pump power circuit in the event of a collision. The switch is reset by pushing each of 2 buttons on the switch simultaneously (some models use switches with only one reset button). The inertia switch should not be reset until the fuel system has been inspected for damage or leaks.
When the ignition switch is ON , it turns the EEC power relay ON . The EEC power relay provides power to the powertrain control module (PCM) and the control side of the fuel pump relay. Power for the fuel pump(s) is supplied through a fuse link or high current fuse attached to the starter solenoid (battery side). From the fuse link or high current fuse, current flows through the fuel pump relay and inertia switch to the fuel pump(s). The fuel pump relay is controlled by the PCM.
When the ignition switch is turned ON , the fuel pump(s) will operate. If the ignition switch is not turned to the START position the PCM will shut the fuel pump(s) OFF after 1 second. The PCM will operate the fuel pump(s) operate the fuel pump(s) when the ignition switch is turn to START position to provide fuel while cranking.
After the engine starts, the PCM will continue to operate the fuel pump(s) unless the engine stops, drops below 120 rpm or the inertia switch is tripped.

Dec 28, 2013 | 1989 Ford F 250

1 Answer

Shorted out one of the fuel injector wires,and now my fuel pump isn't working,checked the fuses,none are blown,any ideas,other fuses or fuse link?thanks,


The fuel injectors receive their power from the Powertrain Control Module (PCM) Power Relay which is located in the Engine Compartment Fuse Box. This circuit is protected by Fuse "I" (20 Amp), also located in the Engine Compartment Fuse Box. If you blew a fuse, this would be the one.
The fuel pump, however, is a totally different circuit. (although it is controlled by the PCM which will not work if the fuse above is blown) The fuel pump gets its power from the fuel pump relay which is protected by Fuse "O" (20 Amp) in the Engine Compartment Relay Box.

Jan 30, 2011 | 1994 Ford Bronco

2 Answers

No fuel to injectors why


Here are some troubleshooting ideas--let me know if you have more questions.
In most modern cars, the fuel pump is inside the gas tank and is also usually sold with the fuel gage sending unit--an expensive and laborious R&R job. If the pump is working, you should hear it at least momentarily when the key is turned to the "on" position. If the pump is not working, the cause could be a fuse, a relay, an accident "kill" switch that needs resetting, or the pump itself. You'll want to rule out all of the inexpensive possibilities first. Use your owners manual (you can often find these online if you don't have the original) to locate the applicable fuse, relay, and/or cutoff switch. To check the relay and ignition switch, follow precedures at http://www.fixya.com/cars/r6022358-relay_check. You can also check for voltage at the pump connector with a test light.
Assuming your pump works, fuel still needs to get to the engine. A clogged filter will certainly limit fuel flow, but will rarely prevent a car from starting. That said, filter replacement is an inexpensive bit of maintenance. Most likely cause of fuel not getting to the engine when the pump is working is the fuel injection system (not an issue for carbureted engines). Injection systems are beyond the scope of this tip, but there are a couple things you can check. Many anti-theft systems cut off the injectors when activated. If you have such a system, make sure your anti-theft system has not been activated. Also, the injectors require a certain level of fuel pressure. Though your pump may be working, it may not be producing pressure. If possible, have your fuel pressure checked or borrow the appropriate tool to test the pressure. Always check pressure at the fuel rail, as some designs include a separate regulator that is typically in the line in the engine compartment.

Oct 03, 2010 | 1997 Dodge Intrepid

1 Answer

Car not starting, no fuel getting into engine


Start with checking your fuel pump and injector mini relay. Fuel pump relay is #18 and injectors is #48 and is located in the fuse box under the engine hood.
Also inspect your ECM fuse, the fuel pump get's it power from the ECM fuse and at wost. It's your fuel pump that has gone bad and that is located in the gas tank, but make sure your fuel filter is not to dirty causing fuel restriction and replacing that will address that issue.
Thank you for using fixya and keep us posted.

Aug 26, 2010 | 2002 Pontiac Grand Am

2 Answers

Where is the fuel relay switch on a 2002 chevrolet cavalier


The fuel pump relay is located in the fuse junction block,under the hood
on the left fender. There is also a fuel pump+injectors fuse, in the fuse
block behind the left side of the dash. It should be marked f/p-inj.
Hope this helps.

May 20, 2010 | 2002 Chevrolet Cavalier Coupe

1 Answer

Where is the fuse for the fuel pump located?


its located under the hood in the fuse/relay box, remove cover, under cover on the back is a diagram of which fuses are were, you will see the fp/inject fuse thats for the fuel pump and injectors and there is also a pump relay in there as well, hope this helps
this fuse box is on the driverside next to master cylinder under the hood.

Dec 13, 2009 | 2003 Pontiac Grand Am

2 Answers

Fuel pump relay location


There may be a fuel pump fuse or connection you can undo but the relay is integrated with the entire injection system. If you disconnect it, you will lose spark as well. I would look through the fuse box first, I will drag out my wiring diagram in the morning and give you more specific details.

Mar 26, 2009 | 1994 Honda Civic

5 Answers

On a 1991 geo tracker trying to find location of fuel pump relay?


The fuel pump relays are mounted on an "L" bracket underneath the ECM. Both have something to do with the Fuel pump. Be careful not to get it confused with the horn relay it is in the same vicinity (under the dash on the drivers side).

Feb 18, 2009 | 1991 Geo Tracker

2 Answers

1999 ford taurus


check the fuel pump itself.. if no fuel going through lines... injectors won't work.

Aug 16, 2008 | 1999 Ford Taurus

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