car starts but wont stay running carburetor

As you know when you turn the key to on the fuel pump is activated and the fuel system is primed with fuel at a specific pressure in order to supply the fuel injectors with enough fuel to start the motor. When starting fluid is used the car will start and then run fine.

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This might be enough to allow the engine to start but not keep running.

. To verify if you have a carburetor you can pour a small amount of gas in the throttle body of the carburetor and try to start it. If so then start with Shades option 1. If it is that plugged up I dont think you will ever get it clean enough to run like it should.

When this is less than what is. Once the ether burns off it dies. The computer simply feeds a little extra gas through the fuel injectors to start the engine.

A sensor might be faulty as well. If you have an inline fuel filter old or new doesnt matter remove until youve fixed the problem and then optionally put a new filter back one. If its sat for awhile probably just a good cleaning will get it going.

Hei ignition is brand new and has worked flawless and. If it starts that confirms the problem and you will need to clean the carburetor with a rebuild. Up to 8 cash back The fuel injection system does nothing until the engine is turning starting or running so pressing the pedal before you start will make no difference.

With the engine running aim the propane gas around areas that might have a vacuum leak. Now the car will not start without starting fluid. This might be enough to allow the engine to start but not keep running.

I check for vacuum leaks by using an unlit propane torch. The engine requires the right amount of air and fuel to mix together for ignition. Start the engine without pouring additional fuel into the carburetor.

Up to 8 cash back It sounds like you may have a fuel supply problem in getting the proper amount of fuel to the fuel injectors. Once you shut it off then try to start it same thing. The fuel pump turns on when key is in on position.

On the old carburetor engines you. A 2 cycle engine may start but not stay running if the carburetor is malfunctioning if the gas is old and dirty if the fuel line is clogged or if the spark plugs are dirty or broken. There could be a fault in the injection or ignition system a vacuum leak or some other fault.

Check for trouble codes even if you dont see the check engine light on. Symptoms are the same as yours. Here are the reason whyNumber one.

Loosen fuel cap and try to start if it starts and runs the fuel cap vent is plugged. Then the 2 cycle engine should keep running. Hello guys sorry to bother again but my bad luck just keeps getting worse with my new build.

Oh and if it is dirty bad gas your buddy wont be a buddy for long if you plug up his new carb with a dose of bad gas. If not its the new carb Shades option 2. If that carb has an idle speed screw adjust it so itll stay running so you can do some tests.

No Fuel at All While the engine is off a quick check requires removing the air cleaner for a look down the primary barrel s and to operate the throttle. Why does my engine crank but wont stay running. Car Won T Stay Running Unless Foot Is On Gas Youtube Car Starts But Wont Stay Running Reasons And How To Fix It Rx Mechanic 4 Reasons Why Car Won T Start When Cold But Starts When Warm Share this post.

If there is a fuel leak somewhere then the correct amount of fuel may not make it to the combustion chamber. Classic case of not getting fuel. Dirty or faulty idle air contr.

Running fine at idle and low speeds around town but struggling and stalling under on-ramp acceleration likely means low fuel pressure. Carburetion problems can be boiled down to no fuel at all not enough fuel lean too much fuel rich or fuel delivered to only half of the cylinders. A 2 cycle engine may start but not stay running if the carburetor is malfunctioning if the gas is old and dirty if the fuel line is clogged or if the spark plugs are dirty or broken.

The fuel injectors work at any RPM so a choke is not necessary. Newer Post Older Post. Start with cleaning the carb really well if that doesnt work look into rebuilding or replacing the carb and she oughta run good after that.

Especially around the carb base vacuum fittings etc. Holding pedal down to try and clear flood does nothing. My chevy 350 engine wont stay running.

To determine if the carb will function fill the carburetor engine off by adding fuel to the carburetor through the bowl vent until it overflows. If it starts but wont stay running with out pouring gas down the carb then the carb is plugged up. Rpm performer intake and world product sportsman 2 heads.

Faulty fuel pump check this by removing plug wires to prevent accidental start then remove fuel line on carburetor and direct into clean container turn over engine and see if fuel flows from line if fuel flows fuel pump OK. Specs sbc 350 with edelbrock 600 performer carb. To fix each part remove and replace or clean them.

Car starts but wont stay running. This was the crank position sensor. Especially around the carb base vacuum fittings etc.

This might be enough to allow the engine to start but not keep running. Most likely the gas that was in the rail or carburetor has dried out and gummed up the injectors or needle valve holes.

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