I have a 2007 Chrysler 300C with a 5.7 hemi that losses engine power during cold weather (30 degrees or lower) this power loss is only for a few seconds, at speeds below thirty mph and during the first few minutes of operation. All gauges and dash warning lights remain nornal execpt the tach which drops to 1000/1100 rpm. I'll pump the gas a few times and the tach rpm"s returns to normal and engine power resume (I don"t know if pumping the gas has any to do with the problem being corrected, it makes me feel like I'm doing something) The4 problem never reoccurs for remaimder of that Day and may only occur once every 3 or 4 weeks and never during warmer weather. There is nothing that indicates the problem is about occur.
Country: United StatesMake: ChryslerModel: 300CYear: 2007Engine: 5.7 ci (345 hp)
Nothing, the problem is only few seconds and can't duplicated. Talk the local dealer and they have never heard of any having thisw problem.
Hi, and welcome to Just Answer. My name is XXXXX XXXXX X will help the best I can. Your 300 has an electronic throttle that has no physical connection to the pedal. The computer controls all aspects of the throttle including idle, cruise, opening and closing. In cold weather the computer limits the amount and the opening rate of the throttle until a warmer engine temperature is reached. What you are experiencing with your 300 is normal for it to happen at the colder temperatures. As long as no warning lights are on there is no problem with the throttle. There is a possibility that it may need a cleaning to remove gum deposits from letting it stick. Your idle will also change according to the ambient temp and engine coolant temp n order to get the engine up to a warmer temperature.
Hope this helps. If there are any other questions don't hesitate to ask.
What would need cleaning to remove gum deposits, can this be acomplished by adding a fuel cleaning product to the fuel or what?
Throttle body cleaner. Comes in an aerosol can and can be sprayed at the throttle blade. Wipe out good with a rag also after spraying.
Chrysler Level 4 Technician, Chrysler Training Instructor