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I have a 2000 cavalier,fuel pump is working,filter is clean,relay is working,will only start with carb cleaner?any suggestions,tks

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You need to pick up some noid lights to check injector pulse if light blinks that's good next check the fuel pressure it should be about 50 psi just est pressure if @ 30 psi car will not start. Fuel pump or regulator. Now if you can't get noid lights use a test light on wires to injector s key on hook end of test light to neg side of battery one wire should be hot now swap ends @ battery to pos side the wire that had no power test that wire have some one try to start car if light blinks it good . The noid lights gust make it easier .I will follow this post if you need help . Please rate my help

Posted on Nov 24, 2014


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Posted on Jan 02, 2017

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SOURCE: fuel pump location and replacement

You are looking for the constant control relay module- ( CCRM ) see below. The pump will be located inside the fuel tank.Most of the time , its the pump and not the relay but, it wouldn't hurt to check the relay out. Teh relay is housed in the CCRM. Its located behind the engine coolant reservoir.


Posted on Mar 20, 2009

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SOURCE: 2000 kia sportage pump is working relays have been

there is a splice for fuel injectors at the front of the fuel rail conduit and electric tape will need to be removed to see if it is ok then clean up all engine grounds and ecm grounds on passenger side kick panel if this doesnt help check coils and crank sensor

Posted on Jul 22, 2009

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2000 Cavalier Z24 2.4 cranks but won't start. If i spray carb cleaner in the intake it starts but won't stay started. I have replaced the fuel pump,fuel filter. cam sensor &crank sensor. What else

It could be the fuel pressure regulator. OR maybe the security is set. Does the security light stay on or flash? If so. Turn the ignition on for ten minutes, turn off for thirty seconds. Then try to start. There is also a relearn for the security. Do the first, three times, then start.

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Spray a bit of carb cleaner in the air boot, off air filter housing to check if fuel pump went dead. Would be a good idea to check all fuses.

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Check if all of the plugs are getting spark. You can do that by pulling the high tension wire at the spark plug end and over the engine check if all are getting the blue arc. Check if the fuel filter needs changing. The fuel supply may also not be consistent, check during start up if fuel is being supplied to the lines via the filter or the hose to the engine also after the engine dies. Fuel may just be only at the start up and when idling supply is low or gone.
I am unsure if your year has the fuel pump already, it may be the fuel pump relay or the fuel pump has gone bad.
Try cleaning the intake with carb cleaners just to rule out dirt in the sensors and the manifold. Check for leaks in the vacuum hoses and air duct from the filter to the intake. It may also be the IAC valve or the EGR for the EFI variants, IAC especially if the idling after start up and before dying is rough. It may need cleaning or replacing.
If you still have the carb or it was converted to carb you may need to adjust the fuel and air by moving screws by quarter turns on the carb and taking note of the movements. It could also be the jets for the fuel which may need cleaning. Carb cleaner would do the job but for tough dirt you may have to remove the carb and clean the internals. During cleaning you may inspect the valves and the parts for wear.

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spray carb and choke cleaner down the intake if it starts its fuel related ,fuel pump or fuel pump relay. if it doesnt start on choke cleaner then its got no fire and that mite b crank sensor or cam sensor or module assebly or coil pak

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Spray aerosol carb cleaner into the throttle body while an assistant tries to start the engine. If it runs for a few seconds then quits, you are not getting fuel into the engine. Check the fuses. You might have blown the fuse for the fuel injectors (possible if you removed any of the injector harnesses) or the fuel pump relay.

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oh ok this is simple u need to put a new fuel filter on there it has a bad fuel filter on there try that out if not it is the fuel pump but try the fuel filter after that and the fuel pump if it still has a problem it is the gauge and try to put mid grade cause it causes less break downs for your car cause it doesnt mess up ur fuel filter

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remove the air filter housing from the throttle body, or if its mult-ported injection, remove the large air duct. Do this the night before. The next day, before cranking and having a spray can of carb. cleaner, spray a couple of shots of carb cleaner either into the large air duct, spray towards the engine, or if its single body injection, spray directly on to the throttle body.

Crank engine immediately, preferrably have some one else sitting in the car to start it after you spray.

If the car even tries to start, replace cold start relay.

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Please call me its easier to explain on the phone, in the mean time try something easy hit the fuel pump on thebottom with a brick or rock then have someone listen to the fill neck of the tank for the two second "buzz" as soon as you turn on the ignition, has this vehicle been run way way low on fuel many times or the fuel filter neglected to been changed at the 15,000 miles interval?
call me or I can call you 253-691-6206

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check fuel lines for leaks...
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