Your ZX2 runs very rough at idle then smooths out when accelerating?

Answer 1

== == == == We had this problem with our 2001 escort and we were told that we had a lot of carbon build up. We had a tune up and a carbon flush and it did way better. I had this problem, I thought it was electrical since it mainly happened when I turned on the lights or heater. I changed out the fuel filter and the problem was fixed. I also have a small vacuum leak in a hose off the valve cover that adds a little to the vibration. Answer My 98 zx2 has the same problem. I took it in and my mechanic told me that there had been a maintenence recall on the transmission mounts. they said the transmission mounts on zx2s tend to wear out over time and that causes the vibration. they also said you'll know that's the problem if it smooths out in neutral. Tune up will probably help. Kind of sounds like your fule filter may be cloged. if the cam belt has been changed recently the cam positioning sensor could be bad so if you know someone with a programmer talk to them to be sure This could be due to damage/deterioration of the motor mounts. The next time you take your ZX2 in to be serviced ask the technician to check the motor mounts for excessive wear. I was experiencing this very issue on my 2000 ZX2 and it turned out to be a leak in the hose that connects to the PCV Valve. Replaced the hose and the engine smoothed out. ANSWER This is due to a design issue with the engine. There is a Technical Service Bulletin from Ford TSB 031515 that involves reconfiguring the motor mounts. I've chosen to just live with it.