The motor dies occasionally when idling or when going down a slight grade when my foot is off the gas. I can easily re-start it but it is disconcerting -, especially when in commuter traffic. This problem started about 2000 miles ago and happens in hot or cool weather.The vehicle has 200380 miles and has always been a faithful runner. The motor was tuned 10,000K miles ago and the air filter changed at that time. Any suggestions?
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sounds like the idling solenoid. this solenoid when powered by 12 volts, would let a small amount of gas to the carburetor or intake line which ever you are using. if it is a fuel injection, then there could be a problem with the computer that monitors idling.
The idle relearn needs reset. Keep your foot on the gas at about 900 rpm. Make it idle for about 5-6 minutes. Slowly ease up on the gas until it will idle on it's own, it might take a while. After you get it to idle, it might be idling real low, but on its own, Let it sit and idle until for 20 minutes. After that it should be back to normal. You will have to do this every time you have the battery unhooked for a while.
first will say that you have a good amount of gas in the tank.second o2 sensor does not contol idle or does the map sensor.the tps sensor and if it has a idle air motor.they can control idle other than the computer.
My 2000 Grand Cherokee had the same problem, without all the sputtering, it would just die approaching a stop. We could only keep it running by slightly pushing down on the gas petal when coming to a stop. I replaced the Throttle Position Sensor, but that didn't change anything. A new mechanic I found replaced the Idle Air Control Valve, and we've had no problems in a week.