why does my car start but wont stay running

The 3 core elements for the car to start and run are fuel spark and air. The upper and lower hose should be hot if it.

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If the car stalls even when the engine is warm the cause is likely a faulty electric fuel pump.

. If it is then check to see if there is spark to the plugs. 1 car fires up perfectly fine but stalls after it starts. It has enough for idle but cant keep up as RPMs increase under hard acceleration.

Theyll help you repair your car faster by having you concentrate on those systems. Arctic cat atv wont stay running Find Arctic Cat Atv Manual on ebay ebay. Depending on whether the engine is hot or cold there are a couple different reasons why a car might start with no problem but stall shortly afterwards.

However the first suspect is there is an engine vacuum leak. Then the engine starts up again because startup requires little fuel. Also can you keep it running by slightly pressing on the throttle.

Either the alternator is failing to produce electricity or theres a load pulling more power than the alternators output and thus draining. I check for vacuum leaks by using an unlit propane torch. Bad Fuel Flow.

My car will start but won t stay running. Disconnectthe fuel line at thw carb and put a rubber hose on the line and run it into a container then crank the engine and see how much. If it doesn t run after a jump and the battery isn t bad the something in your charging system isn t functioning properly.

If proper fuel flow is not achieved the engine will be unable to start. In this case check the fuel pressure from the fuel pump. I will go over the symptoms par.

As we stated this failure involves many parts. Especially around the carb base vacuum fittings etc. If the battery has a weak cell it will produce enough power to run certain things in the vehicle but not the vehicle it self.

Crank no start engine wont turn over. Maybe some gunk came loose in the carb and is clogging it. It could actually be the battery.

1000 3000 900 2700 1000 2652 900Home. It will charge at times and at other times it will not. I would recommend having an expert from YourMechanic come to your location to diagnose and repair your idle air control valve.

Its an auto and i can hold the brake down and keep the rpms up by giving it gas while i put it in drive then take off but when i let off it lugs down in the rpms wanting to die. Polaris sportsman turns over but wont start. What the Reasons Car Starts But Wont Stay Running.

If the voltage drops like you described while the car is running there are only two possibilities. The three main causes of bad fuel flow are issues with the fuel pump fuel injector or simply an empty fuel tank. If there is next check to see if the fuel injectors are getting power.

Car starts but won t stay running rpm up and down. Posted on Oct 01 2009. The car does start when i pour gas in the carb and it starts without that just fine.

You need to do several checks and fixes to know the exact causes of the faults and how to deal with them the right way. In this video I perform a diagnostic on what could be causing my car not to stay on. Running fine at idle and low speeds around town but struggling and stalling under on-ramp acceleration likely means low fuel pressure.

When the engine dies and wont restart actually check the fuel pump pressure to make sure it is within the manufacturers specs. Up to 8 cash back When the engine RPM drops below the normal range of about 800 RPM this often times will cause the engine to stall indicating a dirty or faulty idle air control valve. When i go out to start my 2001 GT it will start and then just die unless I keep giving it gas.

With the engine running aim the propane gas around areas that might have a vacuum leak. Beware going to sites that require clicking things. Here is a link that explains how to find vacuum leaks.

Do this first and let me know what you find. During break in i could never get the motor up to recommended top rpm it was. The idea that it stalls as you described could be a few things.

My car starts but it does not stay running if i put. It really sounds like your fuel pump or fuel injectors are either not working properly or totally broken. Car starts but wont stay running.

If that carb has an idle speed screw adjust it so itll stay running so you can do some tests. In order for the engine to start and work properly fuel needs to be delivered to the combustion chamber. If the problem only happens when the engine is cold a bad electric sensor is likely to blame.

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