Engine Performance problem
2001 Ford Taurus 6 cyl Front Wheel Drive Automatic 120000 miles
My car is running rough at idle (drops low like it wants to stall) and also at highway speeds (stumbles). Only code is cylinder 2 misfire. The problem seems intermintent.
I replaced the plugs and wires, I hadn't done it in a while, it needed it, but they didnt look too bad. That didnt work. I replaced the No. 2 fuel injector, that didnt work. I replaced the vaccum lines, but that didnt do anything. It has a coil pack, all 6 on one, so my thinking is, if it was the coil pack, the misfire would atleast be random.
On another note, the low coolant light is on, but there is no coolant loss, and it is pressurized. I think its just a bad sensor, because I had a line break a couple months back, lost coolant, overheated, and when I fixed it, its been on since. That may be about the time the problem started, but I dont know. Also, I ran a vaccum test, and it pulls a solid 22-in steady at idle. No flucutation that would indicate a valve or cylinder problem. I am stumped. Any ideas?
Monday, June 23rd, 2008 AT 9:13 PM