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The Cat's are probably plugged. Escapes are notorious for this. The sad truth, unless it is in phenominal shape, it is too expensive to fix the right way. I hammered the cat's on my wifes.
I know of several with this problem, some with low miles, While other's never have it, but either way 3 ppl I work with have also hollowed the big cat. The 2 on the header's (if a V6) are almost impossible to gut, and I am sure the idiot light's from the O2 sensor's would be on.
If the cats are plugged, the secondary O2 sensors, after the cat, should be telling a tale via SES or CEL lights. I would temporarily install a pressure gauge into the upstream O2 sensor plug, and measure the pressure, or, remove the O2s, shielding anything that could melt or catch fire, and run the engine to see if it had power again. It takes a little while for back pressure to rise, so you have a little time to check for 'power' even with everything in place. IOW, if it works for a few minutes before getting gutless, it points more to backpressure, likely caused by melted cats.
If it was maintained with spark plugs replaced at reasonable intervals, the cat should not give up the ghost. It must have been fed the wrong stuff to kill it.
Aftermarket cats are available at about 1/2 the cost of factory. If in CA, they must be CARB approved or you won't pass SMOG check. I bet there are a buncha Escape types being exported from CA to the rest of the US {and world} because of cat failure and OEM replacement cost.
tom
So we decided it was the cats.
I cut the big one out and that helped somewhat.
I put a piece of pipe in where it used to be.
I was quoted $2200 to change the mainifold ones.
The EGR on my wife's 02 blew out this week and it looks just like the one in the photo earlier in this thread. I've been suspicious of her cats for some time because the car is down on power. I really want her to replace the car, for some reason after 205K she really likes it. Now I gotta figure out what to do with it. I HATE working on exhaust systems.
Me too. Too much rust on the fasteners, and then you have to use muscle to break them free, which of course means they let go with a snap, and your fingers run into whatever happens to be nearby. Always.
The manifold nuts & studs on the 3.0 are even rusted here in GA to where I don't know if they'll come off without either breaking the studs or backing them out of the cylinder head. The engine ticks for a few minutes after it is started, making me think the exhaust manifold gaskets need some attention, but I have been procrastinating as you don't hear it at all when inside the vehicle.
tom