My wife's 97 Taurus is running like total crap. Right after we bought it, it
would overheat at idle, so flushed out the system, (and, I guess, the stop
leak as well), replaced the thermostat and hoses and the radiator sprang a
leak, so I replaced that too. Then the transmission went and it spent two
weeks in the shop getting fixed under warranty. Then, it acted like it was
starving for fuel. I found an O2 sensor connector that the trans shop
didn't re-connect, but that didn't fix it. So, based on the codes and some
advice, I replaced the fuel filter and the pressure regulator and ran fuel
injector cleaner through it. That not only didn't fix it, but the car
started chugging like a steam locomotive. So, I replaced the plugs and
wires and that not only didn't fix it, but it started backfiring out the
exhaust like a shotgun. So, I cleaned up all the ground points and
connectors (more advice) and it not only didn't fix it, but the speedometer
stopped working and the transmission wouldn't come out of first gear, so
(kicking the car hard enough to put several dents in it) I replaced the VSS
which did actually fix the speedo and tranny.
I am at a loss. Can anyone help me? My only thought is to kick the car some
more. After all, it worked before.
All of my symptoms are:
Hesitation & stumbling when you hit the gas
Misfire like a cylinder's gone.
Severe misfiring and exhaust backfire on acceleration or while under load.
Sometimes surging idle, sometimes loping like a dragster, never smooth
Car surges unexpectedly under acceleration (power output flucuates)