We're is the fuel press regulator located on a 2.5 v6 cougar I changed the fuel pump cause it was burned out now not getting enough fuel press

Leaving the key on longer then two seconds does nothing ! When you first turn the key to on the PCM - engine computer will energize the fuel pump relay for 2 seconds ! If you want to turn the pump on for another 2 seconds you would need to turn the key off an then on again ! The only other way the PCM will energize the pump is while cranking the engine , if it sees an input from the crankshaft position sensor . Rather then just replace parts an making part stores rich , why not learn how to do proper diagnostics . Test the electrical circuits . What's the fuel pressure ? What does the mass air flow signal to the PCM look like ? Hooking up a scan tool an viewing engine sensor data etc.... Check the CCRM - constant control relay module . Google CCRM

i would put a little starter fluid in tb..ie;;;breather tube see if it hits or starts..if it dont its not fuel..eleminate..if it starts bad or weak new fuel pump is likely..

The fuel pump shut-off switch is located in the driver's foot well, behind the kick panel. Thereset button for the fuel pump shut-off switch is accessible through an opening in the kick panel.
Reset the fuel pump shut-off switch by pushing in on the reset button.

http://www.fordservicecontent.com/Ford_Content/catalog/owner_guides/02cgrog2e.pdf

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Generally, the computer only runs the pump long enough to start the engine and build oil pressure. After that, the oil pressure switch keeps the pump on, most of the time by supplying a ground to the fuel pump relay. This is a built in safety thing, when the engine isn't running, the fuel pump shuts off. Most public libraries have Chilton's manuals, or you could pick up a Hayne's manual at a store like Autozone. These books can help you locate the relay and oil pressure switch, as well as provide wire colors for your specific vehicle.

What are your symptoms? The fuel pump will shut off immediately when the pressure is up to normal.If the car isn't running,this can take one second or less.
Please describe the car's troubles to us in detail? don-ohio (:^)

I had the same problem, but the problem didn't start until winter when it got below 0 degrees celcius. it would almost bronco jump and stall at stop lights, (almost rear ended a few people...not safe at all) and then when i'd start it up, i'd rev it and it would stall...but still starting again everytime.. it turned out that.this car is really good and developing condensation in the fuel line/tank...I went and bought a 2 dollar bottle of gas-line antifreeze (any gas station) put it in with the gas and filled 'er up with a tank of premium (cause it burns hotter) and the problem was solved almost instantly. (after about 20 minutes of driving) it saved me from having to get my entire pump replaced...try that out..if it is only since winter started(i dunno where u are) it could very well be your problem.

If you have the 91 3.1 V6 Rodeo you can't adjust the fuel pump or fuel pressure. The only thing you can really do is to get a throttle body rebuild kit that will have a new diaphragm for the fuel pressure regulator. If you want to adjust it, you'll have to get an aftermarket regulator and install on the return line (the smaller line) and remove the spring out of the regulator on the throttle body. If you feel the fuel pressure is too low, then you might need to change the pump. Its located in the fuel tank, only takes 1 or 2 hours to do.

its on the rear of fuel rail on drivers side v6 and v8 same place

Hi, its located on the fuel rail on the left side of the engine towards the front near the throttle body.

O.k. Possibly no power to fuel pump. Should be a fuse in panel under dash, or under hood in power distribution center, marked (underside of cover maybe) fuel pump. Plus there should be a fuel pump relay, probably under hood. Check your owners manual for locations if you can't find them. Let me know how you make out.