Question about Chevrolet 1500

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I have a 4.3 engine wont start in morning unless i pour gas in throtle body wont give a shot of gas when i turn on key but will start all day after first start in morning

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Without knowing the year, make,model,and mileage it sounds like you have a partially blocked fuel filter. the problem occurs after the vehicle sits for long periods of time such as overnight. the trash in the filter has time to settle and block the fuel line so the engine doesn't get the fuel it needs to start. by pouring gas into the engine you are allowing the engine to start and pressurize the fuel system and force the blockage out of the way enough to allow fuel to the engine, as long as you start it up every so often the the trash in the filter cant settle enough to restrict fuel flow. this will be a very good place to start looking for a fuel flow issue.

Posted on Apr 03, 2011

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Posted on Jan 02, 2017

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Hans once again 89 dodge d150 318 th I turn key to on gas pours out of injection fills throttle body in seconds how do I test fuel pressure regulator to see if it completely failed or not fuel pressure...


Sounds like your injector has failed. Unless you're cranking or running the engine, the injector should not be allowing gas into the throttle body. The injector is pulsed by the ECU at a duty cycle to regulate total amount at any given time, but just pouring in - bad...

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WONT START UNLESS I POUR FUEL IN THE THRUTOL BODY TO START IT UP EVRY TIME. RUNS GREAT ,ONCE I START IT UP. WONT TURN OFF, OR STALL.MY FUEL PUMP WORKS,I GET 45 LBS. OF PRESSURE. BUT WONT START IT.UNLESS I...


To start up a cold engine requires reach mixture (air-gas).In your case it seems like the choke is not working ,so cold engine cannot start.If it is an injection operated system then it must have a temperature sensor which suppose to turn the choking on when cold engine needs to get started.Either the sensor is faulty or the choke or between the two there is a faulty connection somewhere.

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Ok Slow deceleration rev responce was part of the ECU software to keep the emissions down ,however if this has only just started you can try to reset the IAC valve ,the procedure is as follows.

Turn ignition key on ,unplug the IAC valve ,turn the key off ,replug the IAC valve. do this 3-4 times .Then start the engine while holding the gas pedal to 2000 rpm ,then slowley let the go of the gas pedal till the engine idles .

The IAC valve is located on the throtle body and has 4 wires to it.

Sometimes the throtle body needs to be cleaned and then reset.

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