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Why doesn't gas injects to carburetor - Cars & Trucks

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Fuel pump is bad,fuel pump relay is bad,fuel filter is clogged,no gas in tank

Posted on Apr 13, 2015

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Posted on Jan 02, 2017

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SOURCE: Car will start only when gas is poured into the carburetor and then immediately stops.

There may be a little screen filter inside the fitting where gas enters the carburetor, might have got plugged. The needle valve just inside the carb whereby the float controls the entrance of gas, may have got stuck in its seat. Or the seat, where gas enters the carb., may have something lodged there.
If you are pretty sure the pump's volume and pressure is correct, (it would be low pressure, like around 5 lbs., and you check volume by timing how long it takes to fill a specified amount-sorry, I don't know or remember any specs anymore- but anyway, you must have taken the line off at carb to check for gas to carb-if it squirted out at a good clip when it was cranked over, it likely passed the test-hows that for accuracy? lol.), but as I was going to say, if you have gas to carb., and no amount of pumping the throttle lets any gas through, you will want to take the carburetor off and have a minor rebuild kit installed, just all new gaskets and seals, rubber or leather parts that get old and leaky, new needle valve and seat.
If you want to just check the bowl inside for gas in it, and the needle valve, too-it can get pretty tricky, but you could take off the top of the carburetor, called the air horn, held by its several screws, and tricky because you have to unhook the choke rod, maybe anything else for getting the top off...If you take it off, you will want a new gasket there...I recommend just taking the carburetor off. Has this car ever sat for a long time? The carb. would need a good and thorough cleaning of every little passage to bring it back to like new condition..
Good luck. It might be something simple, like a bad needle valve, or a filter, wow, what a slam dunk that would be. Wouldn't even have to pull the carb off.

Posted on May 08, 2012

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My car started having trouble starting back up after being shut off for only a short time and now is dying while driving

the car with need to be spimmed, theres no fuel in the motor,,do you have fuel injection, if you have fuel injection you are going to find out how to get the fuel into the ejcedtor,
if you have a carburetor than just pour some gas into the carburetor and turn the key once you get the car crank over and some gas in the system the fuel will pick up and the car should run

Apr 21, 2015 | 2002 Hyundai Accent

1 Answer

How do you adjust idling

Idling is adjusted differently on different vehicles. There are diesel engines, and two main types of injection, either from a high pressure pump to the injectors, or the so-called common rail injectors where injection is supplied by a high pressure pump but controlled by electronic signals.
Gasoline (petrol) engines have either carburetor systems where the carburetor turns the fuel into a gas before it enters an intake manifold which supplies the intake valves with combustible gas, or a common fuel injector which does basically the same, but the gas is produced by a single computer controlled sprayer. The final way of getting gas into the cylinder is to use injectors similar to diesel injectors, such as the VW Jetronic or K-tronic system.
Idling is adjusted on most engines by controlling the amount of gas which is allowed by a butterfly valve to pass into the intake system.
On an old style carburetor there is an air needle valve at the base of the carburetor which must first be adjusted to get the correct gas/air mixture necessary for the engine to idle, then the butterfly stop screw, which is also mounted on the base of the carburetor, but which is open to see. This will physically open or close the butterfly valve to increase or decrease the engine rpm.
However, we are moving more and more into the era of computer control, and the best answer to your question is, Take It To A Specialist!

Aug 14, 2014 | Cars & Trucks

1 Answer

1996 ford explorer I haven't started my explorer in a while,tryed yesterday and wouldn't start has petrol and giving out spark could it b the petrol pump and if so how do I tell cheers

Is it throttle-boy injection, carburetor, or port injection? If throttle-body or carburetor, take the air cleaner lid off and pour a little gas down it. The see if it will it quickly though, before the gas can evaporate.

Jun 22, 2014 | Cars & Trucks

1 Answer

Does a 1988 carborated Nissan pathfinder have a fuel pump regulator?

Are you sure it is a carburetor and not throttle body injection? They do look similar.
If it is a carburetor, there would not be a regulator. The fuel pump will either be a mechanical pump mounted on the engine, or a low volume electric pump in the gas line from gas tank to the engine.
If it is throttle body injection (TBI), yes, there is a fuel pressure regulator, probably located near the throttle body. It will have gas lines connected to it (one line will be a return line back to the gas tank) and a vacuum line. The fuel pressure on TBI systems is not as high as multi point injection, usually around 20 psi. You would have to check the specific pressure requirement for your pathfinder.

Take off the air cleaner cover and look at top of unit. A carburetor should have a choke plate right at top of the carb throat. However some Nissans by '88 had a carburetor without a choke-it used an enricher jet controlled by the ecu for added fuel when starting.. On a TBI, looking down at the unit where the air goes in, you will see one or two injectors with a wiring harness connected to them-each injector will have two wires connected to it.
If still unsure, check engine designation on the under hood label. Carbureted engines will have a s letter designation, injected engines will have letter i. To explain: my '87 Sentra is carbureted, so engine designation is E16s, some same engines were injected, so their designation is E16i.

Sep 29, 2013 | Cars & Trucks

1 Answer

Engine will turn over, but not catch. I can depress the gas pedal to inject the carburetor, and gain rpm's but as soon as I let the key back off to the "run" position, everything dies. This occurs

I suspet you have a bad starter solinoid you may have a seperate solonide by the battery .if this is not the problem try a new ignition switch if this was helpful please leave me great feed back

Feb 17, 2013 | 1979 Ford Bronco

1 Answer

Why do I have to pump the gas pedal to get my 1991 Nissan stanza to start

You probably have a carburetor that feeds fuel to the engine rater than Fuel Injection. Fuel Injection squirts a bit of fuel into the ignition chamber when you turn your key, allowing the car to start, with a carburetor, you have to manually pump the fuel into the ignition chamber to start the engine. Usually Two to Three times should be enough.

Jan 22, 2013 | Nissan Stanza Cars & Trucks

1 Answer

Cant find carburetor

It doesn't have a carburetor and this model never did. It is electronic fuel injection.

Oct 05, 2012 | 1995 Chevrolet Cavalier

1 Answer

Where is the fuel filter in an 87 accord lx?

HI Honda offered this motor that year with either Fuel Injection or with a 2bbl Carburetor. If you have a fuel injected motor the filter is located in the engine compartment on the fire wall about in the middle of the car. If its has the carburetor then the filter will mounted under the car next to the gas tank on the drivers side.

Aug 31, 2010 | 1987 Honda Accord

1 Answer

My 1984 toyota corolla ran out of gas now it wont idle

Quick explanation of your fuel system:

An automotive fuel system consists of everything between the fuel tank and the carburetor or fuel injection unit. This includes the tank itself, all the lines, one or more fuel filters, a fuel pump (mechanical, electric, or both), and the carburetor or fuel injection unit.
With the exception of the carburetor or fuel injection unit, the fuel system is quite simple in operation. Fuel is drawn or pumped from the tank through the fuel line by the fuel pump, which forces it through the fuel filter, and from there to the carburetor/injection unit where it is distributed to the cylinders.

So with that info...try first to clean your spark plugs.
Next, replace your fuel filter.
After that, depending on a carburetor/fuel injection, try an additive that cleans the injectors. For the carburetor, try a half of can of what is called "Seafoam". It comes in a metal can available everywhere, including Walmart. It is worth the $6-8 and also will "dry" out your fuel from water. Very good product.

After that, get back to us and let us know how your Toyota is running.

Oct 12, 2009 | 1984 Toyota Corolla

2 Answers

Idle high when start car

you need to clean a air cleaner and carborator

Apr 23, 2009 | 2005 Chevrolet Impala

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