cyl. 4 misfire 01 taurus

[Fordtaurus2000]

Ford had a issue with some Duratecs buring exaust valves. You have to do a leak down test on that to see what is going on We have also found some valve sticking that would cause a miss fire under load.

[snowcruzin]

Originally Posted by reinhart36

I too have a 2002 taurus with the 3.0 V6 DOHC, and it is also doing this exact same thing.

If I keep it in drive at a stoplight for more than about 20-30 seconds, the engine starts running very rough and the check engine light begins to flash. When the light turns green, it feels like a cylinder is missing and power is low. As I drive, the problem disappears after about 30 seconds or so.

Engine diagnostic codes report misfire on cylinder #2.

I replaced my plugs and wires, to no avail. I also notice that it runs a little rough at idle all the time, even when the check engine light isn't blinking.

A mechanic said I'm getting low compression in that cylinder, but I don't see how this problem can just start predictably and go away predictably if it is caused by low compression (which would always be present, I think).

Any ideas?

Thanks!
Eric

i also had this problem with my 2002 ford taurus 3.0 dohc. i replaced all spark plug wires the plugs and the coil pack, which i found out from advanced auto was actually the coil pack from the earlier 2001 model type. and the problem finally went away.

[kramerica]

The 1999 Taurus 135,000 miles acts like it's not getting any fuel.

Engine is the 6 Cylinder 24V DOHC.

It does it when it has been driven about 30+ Minutes.

If I pull over, it also has a very rough idle - bouncing on the verge of stalling.

If I step on the gas the tachometer drops RPM's. The car loses speeds and
continues to slow down. If I pull over and shut the car off, and turn it back on
it runs fine for a couple of minutes and it does the same thing.

Several times I've been on the highway - at 70mph, and I've had the vehicle act like
it's out of gas. If I push the acclerator peddle down more that it already is, it doesn't respond.

The car seems to be fine for MONTHS on end - but if I take it for a long drive,I'm can almost guarantee it will exhibit the 'out of gas' symptoms. I have taken it to the dealer, and they tested the fuel pump. They said that under heavy acceleration the "fuel pump does not provided adequate pressure."

It does not appear to be related to the amount of gas I have in the tank, it will do this at 3/4 of a tank, as well as 1/4 of tank.

I am not having any problems with the transmission or shifting.

Here is what I've done so far:

============================================
I had the EGR Valve replaced - no effect.
I had the fuel filter replaced - no effect.

Paid the dealer to tell me what's wrong: They want to replace fuel pump.

Since the fuel pump is in the tank - it's expensive to drop the tank, and replace. I am skeptical that
this will solve my problem since the fuel pump is a mechanical device and imersed in the gas, How can it
decide to suddenly act differently on a long drive? If the dealer says it doesn't have pressure under
'high acceleration'- I'm ok with that. This is my daily driver, not a race car.

[96&03 taurus]

Just had the same problem only #1 changed plugs and wires.no help.towed to dealer,vacuum line had a split in it,made sure they were on.should have checked condition also.70$ mistake plus a tow