Loss of power, hesitation, rough idle?

Before the engines Temp reaches normal, the Car drives Wonderful (3.8l v6) accelerates as it is supposed to, but once it warms up, no matter how hard I accelerate it accels as if im only pressing the gas a a tiny bit, I have replaced the Throttle position sensor, (it was driving fine after replaceing it even after warmup, until the next day, it was back to problematic) fuel pump, plugs, wires, distributer cap and rotor, neutral safety switch. This issue is also causeing my MPG to suffer drastically, getting about 9 mpg, But only when the car is warm. I took it to a couple repair shops, but after telling them the issue, they turned down the buisness, seems no one even wants to LOOK at it.

No. But that sounds like a very good idea. I will try get it tested asap.

It has been a very long time, I finally got the money for the cats, and o2 sensors, my cats were mostly clogged, but, the acceleration problem is still there, even tho the car feels alot better, and the gas milage raised a bit, but it still is not good. A recent update is , I acceled full throttle so show someone how it accels so bad, and it jumped like as if I was letting go of the throttle or somethingthen violently smashign the throttle, (which sounds like TPS but I changed that already)
i DID need cats, so im glad I changed them, but this issue is eating me alive. Im mainly worried about my new cats, wondering if this issue is the reason my cats got clogged up. Telling the computer to dump too much fuel in cylinder

I was on my way home from work. I take highways for about half the commute. It ran fine then. When I started on the local roads, 1 was only able to make it go 20-25 mph, and that was while pushing the engine. I could move the Sshifter without a problem, just thre engine itself won't shift.

I have a 1995 ford taurus GL with 116,000 mi. I think I've posted about this before, but I've tried several repairs and nothing has helped (enough.) Here's the deal-when I press the gas I feel resistance in the peddle and it seems I have to keep pressing it. There is no loss of power; it's not an electrical problem (I don't think.) I've had a spark plugs replaced, fuel induction, new tires, left outer tie-rod replaced, an alignment, the air filter replaced, and the peddle lubricated. These things have helped alittle but the problem is still happening and seems to be getting worse. My gas mileage seems to be deteriating and I occasionally smell gas, especially shortly after I have filled the tank and then driven. Also, The temp guage occasionally reads slightly above normal when I go 40+ mph. Any help would be greatly appreciated![/I]

My transmission will not shift into second gear. I checked the fluid and it was fine I also changed the filter. What could cause the transmission not to shift? It will still go, but not over 35 mph.

When I take off my car has little power it surges. It seems to get worse when ac is on. Ive replaced egr pressure sensor that melted replace mass air flow. When cold first running runs good after while when driven awhile has problems. Car idles fine no stalling just when taking off no power have to floor it to move. No codes for items only code for egr pressure sensor which melted. Thank you.

Hello,

Thanks for the info we had transmission replaced last year. It only started to act up after we had a fuel system cleaning just other day. Transmission shifts good. Any other possible repairs? Replaced one 02 sensor because broken. Bad cata conveter? Or egr valve? But no codes for those.

Thank you again

Mr. Sanders