Question about 1987 Oldsmobile Delta 88

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Why my fuel pump dont go off when the car is running

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Sticking contacts in the fuel relay.

Posted on Sep 18, 2010

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1 Answer

Ran out of petrol now it wont start


prime it.
try key on 10 time? (on, off, on....)
if the pump dont run keyon,(1/2 cars down) then it must be cranked to prime,or on some cars there is a DLC connector under hood
for pump hotwiring for just this. (oops 2000 dont have it...)
btw : the pump is fuel lubricated and cooled with fuel so you might have fused it (melted it guts out ) running it dry. dont.

id use a pressure gage to see if i could get spec pressure now.
alldata.com has the steps here.

check 12vdc to fuel pump
check all fuses. #13 and #31

Feb 07, 2014 | 2000 Honda Civic

1 Answer

New fuel pump won't run


I have had bad pumps rite out of the box but dont assume its a bad pump check for power at the pump with a test lite remember the pump only has power for 10 or so seconds after key is on if vehicle dont start pump will lose power until key is turned off then you have to turn key back on best if done with 2 people

Jun 07, 2012 | 1994 Ford Econoline

1 Answer

Ran out of gas now is running rough i replaced the fuel fillter but is still running rough


you will have to clean the fuel injectors and check fuel pressure, maybe the pump is going bad, dont let the fuel pump run without gas, some way gassoline works on the pump as cooling too, and if running dry then it will **** air and burn the pump,

Nov 05, 2011 | 2003 Chevrolet TrailBlazer

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

Ran off the road jumped a ditch now the car wont start. fuel pump runs but dont think its getting to the engine. could it be the fuel pump relay or what else could i check. i dont think they have an...


Try looking underneath to see if you have possibly kinked or flattened a fuel line, if as you say, the fuel pump is running. Otherwise you may have jolted one of the injector sensors in the system.

Feb 11, 2011 | 1994 Nissan Maxima

1 Answer

The fuel pump dont stop


Hi! The fuel pump is designed to run continuously as long as the ECM receives data that the engine is running. Excess fuel is passed back to the fuel tank.

The fuel pump is also designed to power up for 2-5 seconds when the ignition is turned to "RUN" to pressurize the fuel rail.

If your fuel pump runs continuously when the car is turned off, it may be a "stuck" fuel pump relay.

Oct 29, 2010 | 1994 Chevrolet Cavalier

1 Answer

Fuel pump runs and dont run at times wont start


First thing would be to either test or replace the relay which is under the hood. Do check the fuse as well. you can test power to the relay and also to the pump with a voltmeter. You can test the relay itself with an ohmmeter.

Jun 08, 2010 | 1988 Mercury Sable

1 Answer

Will not run


You might want to look at the fuel pump and check your fuel filter and fuel lines and flush the tank.

Sep 24, 2009 | 2001 Chevrolet S-10

1 Answer

2001 f350 diesel craks but wont start


SOUND LIKE THE ELECTRIC LOW PRESSURE FUEL PUMP CHECK FUSE TO SEE IF PUMP GETTING POWER. IF NOT REPLACE FUSE AND CHECK THE WIRE TO PUMP.IF PUMP IS GETTING POWER..REPLACE FUEL FILTER FIRST.IF IT DONT HELP.COULD BE THE ELECTRIC LOW PRESSURE PUMP. FAULTY. IT PUMPS DIESEL FUEL IT INTO INJECTION PUMP TO BE PRESSURIZED TIMED AND INJECT.SEE IF LOW PRESSURE PUMP DONT WORK THE WHOLE ENGINE WONT RUN.THE INJECTION PUMP NEED FUEL FROM LOW PRESSURE ELECTRIC PUMP TO RUN ENGINE.

Aug 11, 2009 | 2001 Ford F350 Super Duty SuperCab

3 Answers

1986 BMW 318i;Turns over but engine wont run.I'm


Fuel pump may be getting weak. If pressure is not high enough the injectors wont open.

Jun 27, 2009 | 1986 BMW 3 Series

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