1994 Chevrolet Suburban Logo
Mark Anthony Branch Posted on Aug 01, 2016
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

I am not getting any power to the fuel pump fuse or the control side of the fuel pump relay

I have power to the hot side of the relay and i have changed the fuel pump, sending unit the oil pressure switch the fuel filter

1 Answer

john h

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.

  • Chevrolet Master 29,494 Answers
  • Posted on Aug 01, 2016
john h
Chevrolet 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: Jun 07, 2009
Answers
29494
Questions
0
Helped
7559761
Points
193449

If power to relay and none to other side replace relay

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

3helpful
4answers

What cause the fuel pump not to run on a 1996 Chevrolet pick-up truck Silverado 5.7L?

Jump the switch side of relay with jumper wire, cavities for terminals 30 and 87 in diagram. As you see in diagram, terminal 87 shows to be fuse protected and hot all the time. switch side is left side of relay in diagram. The pump should run with jumper, don't need the key. You can also see fuel pump/oil pressure switch, redundant power supply to the fuel pump. Even w/o the relay, once you crank it enough to bring up oil pressure, that switch closes and the pump should run, depending.
fuel pump relay-undefined-undefined-0.jpg
0helpful
2answers

Put new fuel pump in 2010 chevy express 3/4 ton van have no power to fuse its grounded on both sides only one power to fuel pump relay

I don't know liter size of engine? The relay has two sides, the load side and the control side. The load side, looks like open switch, left side. Terminal 87 is hot all the time. The right side of relay is control side, needs voltage and ground. On the control side, dark green wire with white tracer is voltage, comes from pcm. The black wire is chassis ground.
Are you missing anything else? Engine cranking, you have spark at the plugs where applicable, and fuel injector pulse? With engine cranking, if your missing everything, I'd have to check rpm signal.
fuel pump relay-ghcoodekmg2zyxdq5iv4j4is-3-0.jpg
0helpful
2answers

Is there a fuse or shut off for the fuel pump, can't get it to pump fuel to the engine?

In this diagram, the asd relay supplies voltage to fuel pump. See the red wire, hot all the time, protected by fusible link. Use a test lite check for voltage on that wire? If it is hot, unplug the asd relay use a jumper wire on load side of relay, the load side is that line with arrowhead. Use a jumper wire between red and dark green wire terminals, if the pump runs, hopefully it is ok. The problem would be on control side of relay, right side in picture. The control side of relay needs both voltage and ground.
Any applicable trouble codes?
asd relay-t0ipf1pjp5q14wy0jhyzzx1m-3-0.jpg
1helpful
2answers

Fuel pump not working, will not prime, cranks but no start unless putting fuel in intake

Check voltage and ground at fuel pump, pink wire is voltage black wire is ground. The initial prime is only for key on engine off, lasts a couple seconds. You use a testlite to check voltage and ground.
Check voltage and ground for fuel pump relay. Also, you have an inertia switch, you have to check that.

For testing, you can use jumper wire at load side of fuel pump relay, the load side is that line with the arrowhead. When relay is energized that line moves to the other terminal and sends voltage to fuel pump, just unplug the relay, use jumper between terminal 30 and 87, terminal 30 is hot all the time.
The voltage and ground for the control side of relay is controlled by computer I believe, If the control side is the problem, I'd have to check wiring circuit and computer.
With engine cranking, you have injector pulse, also?
26130949-hg45nkj1dkxvczgzdnk4gue4-5-0.jpg
0helpful
2answers

No fuel getting to motor so no start. replaced pump fuses and relays all good. there is spark

you will need to check the plug to the pump on top of the tank. check for voltage. then if no volts trace the wires back. also you should check the relay have some one at the relay listening to see if it clicks when you turn the key. no click no volts no volts may be a warn out relay, if it buzzes change it.
0helpful
2answers

I have a 97 chev suburban 350 and no power to the fuel pump ,new fuel pump,fuel pump relay fuse is new,checked all wiring no cracks or breaks all along from fuse s to pump all good,just when i turn key is...

I would interrogate the fuel pump relay socket with a voltmeter or test light. There should be one hot terminal from the ecm b fuse. There should be a terminal that has chassis ground for the relay coil. The positive terminal for the relay coil comes from the ecm when the key is on. If you have trouble interpreting the results of these troubleshooting steps, feel free to comment back. The circuit is on the right of the diagram about 1/3 down the page.

0996b43f80231a1a-4tnsvvnywbpxz3cmxbpyvis1-5-0.jpg
1helpful
2answers

Electrical prblem

There would be a fuel pump fuse, either under dash or under hood. Check that fuse, use the test light to see if fuse has power. If not, then it might be a fusible link or maxi-fuse that feeds the fuse panel. If fuse has power with key on, pull the relay, and use the test light and probe relay terminals, key off. One terminal should be hot at all times. If not, check for power loss between battery and relay terminal-possibly a maxi-fuse or fuse link.
If relay does have power to terminal, quickly check other terminals while someone turns key to on-for about 2 seconds, another terminal should show power-this would be signal from computer to turn the relay on to prime the lines and fuel rail. If you have that, plug relay in and cycle key. Does relay click? If yes, relay is working and problem may be at fuel pump connector. If relay is not working, but you have power to it, and the short signal from computer is there, then check the relay's coil side ground. Computer signals the coil side and the signal goes to ground from relay coil side.
Pull the relay and use a jumper wire from relay's hot terminal to fuel pump terminal-the wire to pump from the relay. If pump comes on, the problem is right there at the relay-either no signal from computer or the relay coil's ground is lost. If pump does not come on, again check connector at pump-that or the wire to pump[ has a problem.
0helpful
1answer

No power to fuel pump or pump fuse on a 1996 saturn sl1. whats up?

The fuel pump fuse gets its power from the fuel pump relay, which is located in the Instrument Panel Junction Block.

The fuel pump relay gets its ground from G102, which is located just forward of the left strut tower.

The fuel pump relay gets its power from the Powertrain Control Module Connector "C" Pin 10 ( DARK GREEN/ WHITE wire) for the primary side of the relay.

The sencondary side (the side that provides power to the fuel pump fuse) of the fuel pump relay gets its power from the IP BATT Fuse (30 Amp) HOT AT ALL TIMES in the underhood fuse block.

This should be enough information to figure out why your fuel pump is not getting power. Let me know what you find.
0helpful
1answer

I need a wiring diagram for 1995 2500 6.5 turbo diesel electric fuel pump circuit

The primary (coils) side of the fuel pump relay is powered by the CRANK fuse (10 Amp) located in the instrument panel fuse block. This fuse is hot ONLY when the ignition switch is in the CRANK position. The secondary (contact) side of the relay is powered by the ECM-B fuse (20 Amp) which is hot at all times. This fuse is located in the engine compartment fuse block. The electric fuel pump in the tank only operates during engine cranking.
5helpful
1answer

1988 ford truck f-150 xlt lariat cant get current to fuel pump

Have you checked the 'inertia switch' which in the event of an accident shuts off the fuel supply to prevent a fire . It's usually located in the cab on pass. side. Some models have one reset button, some 2 which have to be pressed at the same time. If that's not it, here's how the power to the pump SHOULD work, you will have to follow the path to see where it stops. When you turn the key on it turns on the EEC power relay on, this relay then provides power to the PCM (power control module) and the control side of the fuel pump relay. Power for the fuel pump 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 thru the fuel pump relay and inertia switch to the fuel pump. The fuel pump relay is controlled by the PCM. When the ignition switch is turned on the fuel pump will operate, if the switch is NOT turned to start position, the PCM will shut off the fuel pump off after 1 second. This is to avoid flooding the engine when it is not running, just key on. So check out to see if you have a fuse link or a high current fuse and if they are blown.
Not finding what you are looking for?

276 views

Ask a Question

Usually answered in minutes!

Top Chevrolet 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 Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...