I have a 2008 Ford Focus, automatic, with a intermittent no crank no start problem. I have replaced the ignition switch which seemed to correct the issue but after a few months the problem is back. The battery is good and charged. The car has full electrical power and the anti theft light is not flashing. The most common reasons a Ford Focus won't start are a dead battery, an alternator problem, or failed starter. 0 %. 38 % of the time it's the. 2.0 L. Vehicle generally starts and runs well but has intermittent stalling issue. Usually happens in traffic after driving a while (like 10 miles) when car begins to run rough a few seconds won't accelerate (like limp mode) and stalls. After sitting a few minutes will start and continue driving. Full time HACK since 2012. More. 3 years 4 months ago #42641. 2012 Ford Fusion - VERY intermittent no start was created by Tyler. Hoping to tap into the big brains around here for some ideas. :silly: I've had this vehicle two months, and it's acted up ONCE. '12 Fusion 3.0L. Owner filled up the tank, drove it ten miles, parked it at home. RPM fluctuation while idling. I have a 2003 Ford Explorer that hasn't been idling well lately. It normally idles around 800 or 900 rpms, but lately it will slow down to 400 or 500, then burst up to 1100 and repeat the process again. It doesn't do this all the time, maybe only half-time. Occasionally the rpms get so low that the engine dies, but Wondered if you could help me, i have a kit car with a focus 1.8 Zetec in, iv’e had a intermittent starting problem for some time now and it seems to have got worse, Iv’e discovered that when it wont start the immobiliser light flashes fast and when it lights up and goes out it starts fine. 6. Bad crank or cam sensor or sensor wiring. A crankshaft position sensor (crank sensor) is an important device measuring the engine RPM and tracing the crankshaft position. The car won't start if the crankshaft position sensor doesn't work properly. The crank sensor can fail, or its wiring can get damaged. While driving, battery relay under dash starts to click loudly, all lights on dash start blinking, the engine will stutter like it is dying, but usually keeps running. Occasionally if you shut the car off while this is happening it will not restart. In fact it is like the battery has been disconnected. No courtesy lights, radio, horn, switches 3rEup.

ford focus intermittent starting problems