Question about 1996 Oldsmobile 88

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No fuel getting to engine

I have checked all fuses, relays, spark, new fuel pump, power windows dont work, power locks dont work, fuel pump not coming on cant here it, is there a fuseable link on this model, any ideals,

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  • ps63 Feb 02, 2009

    checked both fuse boxs under dash with tester also relays againt fire wall under hood, when i turn key on no sound from fuel pump its not coming on, where are the fusable links on this car



    tanks

  • ps63 Feb 02, 2009

    this is my daughters car, she drove it to work last week when it was below 0 outside , she went out to start it and it started then died and will not start , cranks but dont start, it seems to me its a fuel/wiring problem, thats all thats left, just caant figuer it out, i did think possible fusable link but cant find no info on where it/they migt be, thanks pam

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Check to make sure you have power going to the fuses (with a test light) for these items, it sounds to me like you may have a blown fusible link or damaged wireing going to the fuse panel.

Posted on Feb 02, 2009

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1 Answer

Fuel pump relay diagram


To start with not getting gas so you changed spark ????what spark.
Go to fuse box find pump relay and get it tested if ok then check feed at relay if ok go to pump check power with test light first and then check power to fuse box.[ if you havent already ].

May 22, 2014 | 1997 Chrysler Sebring

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Does a 2003 jeep have an inertia switch?


as always check all fuses first....fuse 12,19,and 24, for sure.
which engine,? there are many and a diesel.
each engine has unique EFI and specs....

did you scan the ECU? some engines has DTCs for pump pressure.
look there. using a scan tool.(any in usa work, newer)
my wild guess , car cranks but dont start?
just a clue here.?

looked at alldata.com and there are no cut out.s.
no inertial, rollover or oil pressure fuel cuts.

the PCM controls 1 fuel pump relay that powers the pump.
we check fuel pressure cranking, to see if it meets spec.
if not , work that,
if good, pressure, then we back up and check spark
fuel is last, not first test.

and if you had a real FSM it does tell you all permisses
for it to allow pump to run.
it cuts fuel for lost spark is one.
or unflood mode.

1: fuses good?
2: all dash lamps glow key on,including the CEL?
3: got spark cranking? if not there will be no fueling by design (logic)
4: if compression is good, the engine runs with test fuel for
say 3 seconds, so you check fuel pressure cranking
and get 0 PSI (the actual pressure, is very important in this diagnosis.
0 , 10psi, 60? ( can be pump, 12v power to pump or regulator bad.)

that is the order, and if you get to #4 we work that.








Dec 29, 2013 | 2003 Jeep Grand Cherokee

1 Answer

My 1999 nissan quest van is like its mot getting gas I put new fuel pump spark plugs cleaned fuel injectors it's still not starting


Can you hear the pump hum or buzz when you turn the key to on? It should come on for a couple of seconds to pressurize the fuel system. If you don't hear it, check the fuel pump fuse. If fuse is good, find the fuel pump relay under the hood. Hold a finger lightly on the relay and have someone turn the key to on. You should feel it click on to power the fuel pump. If no click from the relay, you will have to diagnose the fuel pump circuit. The relay should have power from a fuse link or a maxi-fuse that may be out. The computer signals the relay to turn it on.
Now if you do hear the pump, you would want next to check the ignition circuit: check for spark on one or two of the spark plug wires. The ignition is probably good if you see a blue snapping spark. If weak, intermittent, or orange colored spark, the ignition circuit would need diagnosing.

Jul 12, 2013 | Cars & Trucks

1 Answer

Truck wont start


If you have no fuel pressure at the engine when key is on, the pump is not coming on. Check fuel pump fuse, check fuel pump relay (relay should click when key turned to on-put finger lightly on it and feel for click when someone turns key to on). If no click, signal from computer may be lost, ground for relay may be lost, or relay may be bad. If it clicks, wiring from relay to pump may have failed, or the relay's main power source may not be there at relay-find the fuse link or maxi-fuse that powers that relay. One terminal at relay should be hot at all times-can check for that with a test light.
If pump is working and you do have fuel pressure, you will need to check injector circuit. Post back if questions, or need further help.

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1 Answer

I just swapped out engines in my 4 Runner and i am unable to get it to start. turns over i have spark but seems like no fuel flow. where is the fuel pump selonoid? fuses related to fuel pump? etc?


There is no fuel pump solenoid, just the fuel pump fuse, relay and pump. Check power to the pump, and check power to the relay.

Check that your vehicle's ECU is compatible with this new engine. There is a chance that some components may differ slightly from the old ones.

Nov 18, 2012 | Cars & Trucks

1 Answer

Xterra car quit running. had no spark @ distributor. replaced crank sensor and got spark. no gas pressure. replaced fuel pump, new one do not work. no power to it. checked fuses/relays, no luck. ran...


the fuel pump fuse is fuse #1 15amp in the inside fuse box ( left side of dash behind fuse box cover ) the fuel pump relay is behind left side of dash ------- cavity #2 & #5 at the relay should have battery voltage in start and run cavity # 3 is the power out to fuel pump and cavity #1 is the ground that is turned on by the on board commputer.

Jan 15, 2011 | Nissan Xterra Cars & Trucks

2 Answers

I checked my spark plugs and have a spark going to each plug. I changed the fuel pump thinking I didn't have enough fuel pressure. I sprayed some starter fluid in the intake and it started for about 5...


If you are getting spark and the engine tries to run on starter fluid, then you have lost fuel. Check that you are getting injection pulses at the injectors and check the fuel pressure at the fuel rail at the injectors. Check for power to the fuel pump when the engine is cranking, If you get no power to the fuel pump when cranking the engine, check fuses and relays. If the pump is running but you have no fuel pressure, check the fuel filter and fuel pressure regulator and replace any that are faulty. If the injection pulses are missing, check the supply relay which supplies power to the injectors first ( the injectors are earthed by the ECU) Disconnect one of the injector plugs and using a test light (buy one from a auto parts store) clip the end to a good earth on the vehicle body, switch the ignition on but dont start the engine, then probe the two connections in the injector plug. One of these connections should be active all the time with the ignition switched on. If it is, you may have a sensor failure (crank sensor etc), if it is not, check fuses and supply relays. A word of warning, the wiring you are dealing with is connected directly to the engine control, if you make a mistake, you can cause irreparable damage so if you have any doubts, take the vehicle to a professional..

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6 Answers

No power to fuel pump


when u checked this u do realize the fuel pump only has 12 volts for 1 second then the computer turns it off unless the engine is started? let me know.

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