The car runs perfect until i cut it off after driving it for the first time that day. once i cut it off to run into a store and i come back out it will start but will not allow me to press on the gas without sputtering and then dies. if i cut the car completely off and let it sit for a few minutes it is fine until the next stop . then i have to repeat the process.
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Not unusual for fuel pumps to begin to fail once they are heated up from running. First thing in the morning pump is cool, then as you drive, it heats up and begins to lose pressure. After sitting a 1/2hr-1hr, it may start again and run fine for a short time and start to act up again. Had similar problem and found good fuel pressure when tank and pump cool, but lost pressure once vehicle driven a distance and pump heated up. The hotter the weather, the shorter the distance I could drive. If you can somehow set it up to have fuel pressure checked when it starts to act up, that would certainly help confirm if fuel pressure is the culprit.
ok..you must have more than one car???? you don't drive the 300 atall im guessing. #1 start car drive up the road and \back to your house. #2 let it idle till problem starts. #3 once it does start with the problem keep it alive with the gas pedal. #4 once your have it safely from dying in higher rpms "rev it" like a kid would, you know like if you were gonna race some one lol. be careful not to over rev or damage engine. you should do this for five minutes no longer than that. #5 let it idle for another 5 minutes. #6 repeat every day until problem with idling decipates. it took mine 3 300e like 3 days of this. if your not going to drive the car once you get the problem out of the way. turn the car on everyday and let it idle for 5 minutes atleast and take it for a short drive once a week. they get lonelly you know lol. later on you can just turn the car on every 2 -3 days and let it idle but still take it on a short drive atleast once a week
Fuel pump,Fuel pump, Fuel pump,,, high mile cars will always out live their fuel pump. The stalls will become more frequent. But first change fuel filter if it has one outside the fuel tank, if it has it in the tank just replace the pump at the same time. Also next time when it stalls bang the bottom of the tank with your hand and try starting.
This is most common with Gm cars your torque converter switch is sticking.and keeping your torque converter applied . you can unplug the converter and try it.its a square plug on the front of your transmission.just unplug it and drive the car it turns the torque converter off. but you should have it repaired for it may cause your check engine light to come on phil