My car is driving me insane.
It started out that the engine would shut off even while driving with no forewarning. Then it stopped idling. Now it is idling rough with a serious engine knock.
With the help of K, we've replaced the front O2 sensor after a code threw twice on it, checked the spark plugs, checked the fuel pump, replaced the throttle sensor, replaced a collapsed vacuum hose AND replaced the ignition coil.
After each replacement the first test drive has the car running smooth and slick with more horsepower and get up then before, but after that it's right back to square one after starting it a second time.
I look like a grease monkey, but I will admit that I've had a lot of fun poking around in the engine. Nonetheless, I want the ol' girl to get back up off the sick bed and DRIVE.
I haven't written at all today on my stories. Gar! I need to write, I have deadlines.
When it comes to working on automobile engines, I always say that one must recognize one's own limitations. Please don't disassemble the engine or transmission.
I had the same repetitive issue and found it was my spark plug coils, check that next.
But I don't hve any guarantees.