Expert: Sean Halliday - 4/7/2009

Question
Hi I have  few questions (problems). My first question is  once a week when I start my car it seem to want to choke off or rough idle and I have to keep giving it gas to keep the car from shutting off. During stopping and going and accelerating the car runs fine. just every now and then it seems to want to rough idle or not stay crunk when starting. My secound question is my abs break light flashes off and on sometimes and when I press the brake peadle it gives in then makes a funny sound and and pops back into positions giving resistance. I also have a heating problem when I turn the temp to a warmer setting it switches between hot and cold and I can hear a door opening and closing underneath the dashboard. If I set the temp on warm or cold it stops.

Answer
The heater problem could be a fault in the hot/cold unit or a stepper motor.Abs sensor or solenoid fault which will have to be scanned.These are not repairable at home as the scanner is complex and expensive.The splutter maybe a fuel filter or tune up problem,also egr fault in the valve.