my truck has had an issue stalling when im off the gas at low speeds -- and when im around and under 30-35mph and off the gas the volt meter drops and the lights dim and as soon as i hit the gas everything goes back -- doesnt have a problem starting back up at all just keeps shutting off on me like at lights or backing up off the gas --- anyone have an idea -- ive changed the battery but nothing .......

 

I know it sounds too simple to be true, but more than likely you just need to clean your throttle body. It happens all the time, especially with the DBW trucks and SUV's.