Question about 2003 Oldsmobile Alero

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MY HARD TO START

A FUEL PUMP FOR A FOUR CYLENDER CAR PUT OUT LESS PRESSURE THAN A FUEL PUMP FOR EIGHT CYLENDER CAR ?

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The size of the engine doesn't matter really, it will depend on the fuel pump output

Posted on Jul 04, 2010

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Posted on Jan 02, 2017

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19861/2 nissan truck 2.4 four cylinder with the z motor eight spark plugs ficve speed want start unless put gas in throttle body then dies instantly unless you keep feeding it gas


There has to be a fuel delivery problem. The fuel pump is not working/fuel filter is restricted/injector not working. Start with determining if the fuel pump is operational.

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2003 Town & Country hard to start. Once it's starts it will start every time . Wait a few minutes then it's hard to start. Must turn over three or four time to start.


It sounds like possibly a fuel pump issue. The pump may be losing its prime because of a sticking check valve in the pump. Instal a pressure gauge and watch the fuel pressure after shutting the car off. The pressure should not completely drop off it should only drop a few pounds. If it loses more than a few pounds of pressure quickly then it may need a fuel pump. This can also be caused by leaking fuel injectors so further diagnosis is needed to find the source of the leak

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Car just stops hard to restart


Check fuel pressure at motor

Run some tests on fuel pump

Fuel pressure,volume,current or scope it
& check armature pattern for failing pump

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Car was starting perfect until wife tried to start when petrol tank empty have put petrol in car it runs appox 2-3 seconds then cuts out appears fuel being cut off


sounds like fuel pump is running but can not produce enough pressure. try pressurizing the tank with compressed air(may have an air lock) and if that doesnt work consult your local jag dealer for tips before you replace the fuel pump....

Aug 19, 2011 | 1998 Jaguar XJ8L

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Car stalls or loses power when we get less than a quarter of a tank in it


Check Fuel Pump/Pick Up Line & Filter in tank, if the Tank is Dented or Damaged that could cause it not to pickup that last 1/4 Tank. It could MAINLY be your fuel pump though. Because with the car full of gas, the fuel pump does have to work near as hard. Hope this helps, James Booth

May 17, 2011 | 1992 Oldsmobile Ninety Eight Regency

1 Answer

We put gas in our car and it turns over but won't start.....and it don't sound like the fuel pump s turnin on and smels lke no gas is going to the engine....is it possibe that the fuel pump is out and...


It is possible that is plugged. The fuel pump is in the gas tank. when you turn the key on you should hear the fuel pump turn on. I would check fuses first, if they are good while you are cranking the car over have someone else bang hard on bottom of the gas tank with their hand. If the fuel pump is stuck it might start working again. Good luck

Aug 28, 2010 | 1994 Oldsmobile Eighty Eight

1 Answer

My car wont start. Im thinking its the fuel pump. When i accelerate my car, I dont hear the humming sound that comes on like its supposed to. Sometimes it comes on and sometimes it dont. When it does, my...


Best suggestion would be to put a fuel pressure gauge on and and see what the fuel pressure reads when cycling the key off and on pressure should be 37 to 43 any less then this suspect the fuel pump or an electrical connection to pump. When it acts up and you can not hear the pump running try tapping on the fuel tank.If vehicle starts after that suspect the fuel pump.

Jun 01, 2010 | 2001 Pontiac Grand Am SE

3 Answers

Replaced fuel pump & still car wont start on 97 olds 88


The fuel pump most likely is not the problem,replace the crankshaft sensor,it tells the computer to pulse the injectors,and the spark.

Mar 07, 2010 | 1997 Oldsmobile Eighty Eight

5 Answers

How do you know if your fuel pump is going out


The best diagnostic for the fuel pump is a pressure test. Need to know the specs on it (should be around 40-60 PSI), hook it up to a fuel pump tester and there you go.

The symptoms the engine presents when a fuel pump is going bad could include:

- hard to start
- hesitation
- loss of power upon acceleration
- going dead at idle
- others...

But other problems could cause these same symptoms.

Charlie

Aug 23, 2009 | 2000 Ford Taurus

1 Answer

Wont start, new fuel pump


replace fuse and relay.also check oil pressure switch.it controls fuel pump also. check fuel pump wires and fuel injector fuse .if all is good pcm could be faulty it controls fuel pump on .command circuit

May 31, 2009 | 1996 Chevrolet Blazer

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