Question about 2003 Chevrolet Malibu

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My 2003 malibu with turn over but not start fule pump is getting 55 lbs of pressure at filter and rail if you spray start fluid in it it will start and run until it runs out of start fluid could this be a timing problem or what we have change the fuel filter already

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  • Chevrolet Master
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Signs of a Bad Fuel Pressure Regulator
the vehicle will not start, if a bad regulator. Usually, this is a problem that is encountered in the morning when you start your vehicle. Many a times, the engine starts, but stalls shortly after starting. check the fuse and relay for pump. also remove line to fuel pressure regulator and if fuel in line, replace fuel pressure regulator. check for spark and also the timing belt. its one sign of not starting. if car runs fine on spray, I would not say its the timing belt or chain.

Posted on Aug 05, 2010

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1 Answer

My 2000 expedition start but wont turn over sometime unless i spray starting fluid in it then it comes right on


Turning over the engine, is not the same
thing as a no start condition

Won't turn over, means the starting system
is dead

Do you have the correct fuel pressure at the fuel rail
with a pressure gauge or on scan tool data, when the
key is turned on & also when running

About 42 lbs pressure

I would suspect you have issues other then fuel
& the spraying is just a coincidence

I think only scan tool or oscilloscope data on
several sensors, will be needed to see what's
missing on start up

Mar 01, 2013 | 2001 Ford Expedition

1 Answer

My heads are blown


check the fuel pressure on the fuel rail could be a fuel filter or the gauze filter on the bottom of the pump or even the pump itself but you will need to check the pressure first should be around 50 55 lbs

Sep 13, 2012 | 1994 Mitsubishi Galant

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Chevy Malibu 2003 cranks but won't start! I know


You might have a defective fuel tank pressure sensor!

May 05, 2012 | 2003 Chevrolet Malibu

1 Answer

I have a ford f150 that it would not start. i think it is the fuel . can you help it is 1999 model


is your fule pump working?, check pressure,also check filter is it fule injected,or does it have a carburator?
if a carburator( don't crank while doing this) look down into carb while working throttle ,you should see the jets in the carb spray fule into carb if not you are either out of fule,or its the filter,or pump.
if fule injected if v8,there is a little valve on fule rail, it looks kind of like a valve stem on your tire,it may have a cap on it.remove cap press valve as you would to let air out of your tire,(WATCH YOUR EYES!)
fule will squirt out, if not same as above with carb.

Oct 05, 2011 | 1999 Ford F150 Regular Cab

2 Answers

How much fuel pressure is needed? I can not hear the pump but when I crank the engine fuel comes out of fuel rail. Car starts and dies right away


30-40 psi. th epump should run for 2 seconds when turning the key on, then run when engine is cranking and/or running.

Sep 22, 2011 | 1992 Mercury Cougar

1 Answer

Fuel filter or pump. will start but will not continue. gage show 55 lbs of pressure when start, none when not key on.


Sounds like a pump. You should have 43 lbs of pressure after system is primed by turning key to ON. Pump will run for 5 seconds and shut off if engine is not running. It should hold pressure for 30 minutes with just a few lbs drop. If not, it is the check valve, internal to the pump or the fuel pressure regualtor on the fuel rail. Hardly ever the latter

Jun 23, 2011 | 2004 Ford Explorer

1 Answer

Wont start unless spraying gas in intake. will turn over til battery dead. getting spark at coil and pressure in fuel rail. sensors? injectors? computer?


Neither

You may have pressure but do you have 40 or more lbs
cycling the ignition key?

Listen for the fuel pump,Iam guessing it has an issue

Why -- it starts when you spray anything into the throttle
body

Jun 15, 2011 | 2001 Chevrolet Malibu

4 Answers

Im working on a 95 s10 blazer.It has the 4.3 engine.It will only start if it is sprayed with starting fluid.the fuel pump,fuel filter,and pressure regulator have all been replaced.Seems like the system...


It sounds like the fuel pump is not working. Perhaps the install was not completed correctly. Things to check, fuel pump relay, wiring, voltage to the pump.
The priming happens as soon as you put the key in and turn it to "acc" (you may hear a humming sound). Then once you turn it to "start" the injectors and spark plugs start firing.
Another possibility is that the fuel filter was installed backwards.

Apr 22, 2010 | 1995 Chevrolet S-10 CA Edition

3 Answers

It starts & then immediatly shuts off..... but will keep running if i spray ether into the carb not a plugged injector, not a fuel pump, and the rails are getting fuel


check the fuel pressure in the rails. There may be a low pressure that will not allow the spray to be misted enough. It could be a clogged fuel filter also.

Feb 21, 2010 | 2004 Chevrolet Malibu

1 Answer

I have a 2000 Ford Windstar. My problem is it will not start sometimes. I can crank it over it starts for a sec then dies. The only way I can keep it running is by keeping my foot on the gas pedal. please...


sounds like a fuel regulator or fule pump. your going to have to test the fuel pressure the port to hook a pressure tester is on the fuel rail. anything below 35-40psi you will need  to prob replace regulator

Feb 20, 2010 | 2003 Chevrolet Malibu

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