What happens if you pump the gas pedal before you turn the key?
What happens if you pump the gas pedal before you turn the key?
At this point, pumping the “air” pedal before you turn the key does nothing. You might as well wave chicken bones over the ignition. Trying to “give it gas” when you turn the key to start it is actually messing with the computer’s “plans” for getting it running – because you’re allowing in more air then is supposed to go.
Why do you need to press the gas pedal before starting the car?
This was necessary because the carb does not feed fuel properly at low (starting) RPM. A cold engine also needs a little extra fuel to compensate for questionable vaporization at low temperatures. 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.
What happens when you push the gas pedal to the floor?
If the car was “flooded”, you pushed the pedal to the floor which then opened the automatic choke. The Packards, at least through the 1950 model had this arrangement and I believe the Chevrolets until 1937 may have had the same starting arrangement. Two different systems. On the carb, the bowl holds fuel.
What happens when you push the accelerator pedal?
Pushing the pedal did three things: it “primed” the engine by using the accelerator pump to spray some fuel in it set the automatic choke it set the idle to high, via the high idle cam. Fuel injected systems control the engine’s starting fuel needs by computer.
At this point, pumping the “air” pedal before you turn the key does nothing. You might as well wave chicken bones over the ignition. Trying to “give it gas” when you turn the key to start it is actually messing with the computer’s “plans” for getting it running – because you’re allowing in more air then is supposed to go.
Why does my Truck start when I press the gas pedal?
If it has gasoline in it, your regulator is bad. It’s about $50 for a new one at AutoZone. It’s a common problem on this engine. If this does turn out to be the problem, the reason it starts when you hold the key is because you are putting the ECM in “flood mode”.
What kind of car wont start unless you press the gas pedal?
I have a 2002 avalon XLS. In the morning the car cranks but wont start unless I press the gas pedal. After that everything was fine. But recently the problem is getting worse. The car became harder to start although it will start eventually. I have changed the Mass air flow sensor, but did not solve the problem. Any suggestion?
If the car was “flooded”, you pushed the pedal to the floor which then opened the automatic choke. The Packards, at least through the 1950 model had this arrangement and I believe the Chevrolets until 1937 may have had the same starting arrangement. Two different systems. On the carb, the bowl holds fuel.
