Question about Cars & Trucks

1 Answer

2000 olds siluette fuel pump not functioning,replaced fuel pump,tested relays,still dont hear it pumping. suggestions????

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cars & Trucks Master
  • 5,252 Answers

Do you have a multi-meter or test light?
There is a fuel pump fuse, in the fuse/relay distribution box, did you check that? That fuse and the fuel pump relay would have a "hot at all times" designation. Use the test light to see if the fuse has power at it. Next move to the FPR, pull it out and check for power. One of the relay terminals (it is #30 designation on the relay) would also be hot at all times (this terminal is coming directly from the fuse). Use the test light to check for that.
Look at the relay: on the side is a descriptor, or a diagram showing the relay terminals usage: #30 is the power feed, #87 is the feed on to the gas tank to the fuel pump. The other two terminals are the "coil side" of relay, #85 and #86, the coil side is what turns the relay on (from a signal from the pcm) and lets power pass to the pump.
If you have power at the relay terminal, you can take a short jumper wire and jump terminal 30 with 87. this will check the wiring circuit- it will send power on to the pump, and it should start working. If pump does not work, check for power on the gray wire at the gas tank connector. If no power, (and you still have the relay jumpered) then you have a bad wire from relay to the gas tank. If there is power on the gray pump wire, but still no pump when it is connected, then possibly the ground on your car for the pump is bad, or you maybe got a defective pump. Not likely, but it has happened before.
Now if you can jumper the relay and turn the pump on, we are down to the problem: apparently the coil side of your relay is not working-not turning the relay on, because of a missing signal from the pcm, or because the ground for the coil side is bad, or maybe just a bad relay.

Posted on May 07, 2017

1 Suggested Answer

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 1998 cadillac catera that we have had constant trouble with. We replaced idle air control valve fuel filter fuel pump and fuel pump relay. It ran for about 3 days after replacing fuel pump then...


Does it have spark ? engine compression ? Stuck open egr valve ?

Any codes stored in the PCM ? Is thier a security light lit on the insturment cluster . When you turn the key on , not start ,listen at the fuel filler neck with the gas cap removed > The PCM will energize the fuel pump for two seconds to prim the system . Can you hear the pump run . Turn it on an off a couple of times to make sure ! The best way would be to hook up a fuel pressure gauge . It sounds to me like your too fix on the fuel pump . When cranking the engine ,if the PCM doesn't see a input from the crankshaft position sensor it won't energize the fuel pump relay . If you want to fix your vehicle i suggest you learn how , an don't guess an just replace parts .
GM Fuel Pump Relay Testing
test the fuel pump electrical circuit

Jun 12, 2017 | Cars & Trucks

1 Answer

New fuel pump and still wont start


do you hear fuel pump operation if yes replace fuel filter.if you dont hear fuel pump running could have open short in fuel pump harness or could have faulty fuel pump relay faulty automatic shut down relay,fuse or PCM.if fuel system okay check for spark at spark plugs no spark could have faulty ignition coil,camshaft sensor or crankshaft position sensor.

Aug 15, 2013 | 2000 Chrysler 300M

2 Answers

Fuel not at engine


check the fuel pump you could hear a hissing sound when you turn the ignition on but have the engine off have somebody with you and if you dont hear its your fuel pump other thing is your relay have the check after that just in case your pump fine

Aug 09, 2012 | 1996 Mercedes-Benz C-Class

1 Answer

2000 mercury grand marquis 4.6 fuel


Voltage drop test the electrical circuit , do know how to do automotive electrical testing . Lose connection , resistance in the circuit , lose ground Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia Testing Electric Fuel Pump Problems with Voltage Drop Test

Feb 27, 2017 | 2000 Mercury Grand Marquis

1 Answer

I have a 2000 ford econoline. When I start it it shuts off right away. I can hear the fuel pump working. I swapped out the fuel pump relay and still doesnt run. Any suggestions?????????


if you hear the pump working thats one thing, A fuel pump relay isnt going to fix a pump thats working. fuel pressure is another, get it checked.

Sep 15, 2011 | Ford E-150 Cars & Trucks

1 Answer

My husband turned off our 2000 silhouette at a school to get out and when he came back it wont start it tries to but just wont we changed the fuel filter and the fuel pump relay and i really dont want to...


If you dont know what the fuel pressure is, dont guess. Buy a $20 fuel pressure gauge and hook it to the fuel injector rail and see what fuel pressure you have 35-40 psi. Do you hear the fuel pump run? it should run for 2 seconds when you turn the key on. Do this first,Sometimes....... you can get to pump to run a while longer if you rap on th tank while someone is cranking, that may get it to run long enough to get to a repair shop.

Sep 01, 2011 | 2000 Oldsmobile Silhouette

1 Answer

I have a 2000 323i that suddenly failed to start this morning. It will turn over just fine but just know ignition at all. It was fine last night..What gives?


This model will occasionally loose a single coil, but is not prone to loosing all ignition. Therefore, in the absence of any diagnostic test, the smart money bets on a fuel delivery problem.
Can you hear the fuel pump spin up for a second and then stop when you turn the key to the run position?
If you hear the fuel pump spin up, how much fuel is in the tank? If it shows 1/4 full and the car starts working if you add 5 or 10 gallons, then the problem is the transfer pump the moves fuel between the two tanks (there is a tank on either side of the spare tire).
If you don't hear the fuel pump spin up and if it does not get fuel when the tank is full, you should first check the fuel pump fuse and the relay, but the more likely culprit is the fuel pump.
I never suggest that people replace their own fuel pumps. The fuel vapors in the top of a gas tank are nothing to fool around with.

Feb 06, 2011 | 2000 BMW 3 Series

1 Answer

Getting no fuel to the engine


Check the fuse for the fuel pump under dash fuse panel...its a red plastic one 10 amp if good turn off all electrical like radio fan etc....real QUIET.... turn on the key.... do you hear the electric fuel pump sort of a whirring noise then it stops quickly( a few seconds)
if you do hear it then have the fuel filter checked for clogging/dirt contamination in the tank...drain flush tank replace fuel filter clean injectors with a flush madditive to a tank of fuel.
If you dont hear the pump have the fuel pump relay tested underhood fuse box, if ok drop the tank and replace the fuel pump you may want to replace the relay as well for safeties sake later on.

Aug 10, 2010 | Dodge Ram 1500 Cars & Trucks

2 Answers

2000 Jaguar S-type 4.0 sport no fuel pressure at fuel rail new fuel filter, fuse is not blown, and can't find a fuel pump relay anywhere. Cranks over well, should my next step be to replace the fuel pump...


this is the fuel pump itself that has failed, replace it. It is located inside the fuel tank and is sold as a module assembly about $675
BOSCH Part # 67935 {Fuel Pump Assembly}
or as just a pump which you splice into the old sender assembly fuel pump module for around $120
AIRTEX Part # E2314 {In Tank Electric Fuel Pump}
Strainer included with pump.

Oct 14, 2009 | 2000 Jaguar S-Type

2 Answers

94 dodge grand caravan no fuel in fuel rail


Dear Ron, you have replaced fuel pump and fuel filter. You have checked the fuel pump relay. Still no fuel in rail. Try bypassing fuel relay with jumper from batt to fuel pump. If o/k then check computer for ground to relay. This system uses a relay that is operated by the computer that supplies a ground for the relay to operate. The wire color is green,16 gage. If the ground is not available then "no fuel" Check this with a test light. Key on and crank apply test light to ground wire and other end of light to ground. You should hear relay click and get fuel. If this checks out you will need to replace computer or get creative with rewiring the relay so it works without computer input. Good luck Moe

Apr 24, 2009 | 1994 Dodge Grand Caravan

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

Related Topics:

14 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

75077 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 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...