I have a 2000 TAURUS - DOHC 24V. I have gotten the infamous Code P1237 FUEL Secondary failure starting in 3/2010, checked eveything & ended up & decided in replacing the Fuel Pump Driver Module. ALL was well till this past week & whamo......ITS BACK NOW It is doing the SAME THING (again), only thing left that has not been replaced is the F. Pump. This HAS HAPPENED 4 TIMES NOW & TOW BILLS ARE NOT CHEAP !!!
(2) of the times after having it flatbedded home, OF COURSE it started right up, so there was 2 tow bills that added FUEL to the fire. And with the "other" 2 tows, well could have had it diagnosed/repaired (dare I say.....from Ford......) So it seems my issue is INTERMITTENT.??.. Of course as of right now its running perfectly, BUT with my luck as soon as I drive it, rest assured you can bet $ it will die again. With it running, I am unable to verifying any wiring issues. All fuses AND relays have been replaced, and as I stated, the actual Fuel Pump Driver Module has been replaced as well (Fords infinate wisdom places it in the trunk behind the RH rear seat back (a real pain, unless you have EXTREMELY Small hands). With what I have paid in Tow Bills, I could have paid FULL BLOWN Retail for a complete fuel pump assembly. At any rate, any suggestions on where to go next?? I am thinking of replacing the fuel pump. I have a pretty nice scan tool, and the code P1237 is currently in "PENDING" according to my scan tool. With it now running, ALL of the PID values are right where they should fall into in their values. I have hit bumps/potholes, thinking I have have a short somewhere, but it does'nt do anything. Two of the times it was placed on a rollback & towed home, it fired right up after it was droped from the angle of the rollback unloading the car. I cannot duplicate it, by driving on a steep hill or grade. So right now I am at a loss.
As far as Fuel Pumps go, I have always been under the impression, that when they die, thats it. I have never seen one stop & then "Start" working again. Not sure if it has anything to do with the "Electronic Returnless Fuel Line system" Is That Possible??? Work....Stop.....Work again...??
NOW GETTING TO THE FORD REPLACEMENT FUEL PUMP MODULE: FORD Lists (2) DIFFERENT pumps for the DOHV 24V 3.0L, a "White" Label AND a "RED" Label. Is there any way to tell which one I need WITHOUT dropping the tank BEFORE I ORDER ONE?? If I drop the tank, will it have either a "RED" or "WHITE" Label ON the top of the Fuel Pump Assembly?

Also, The Local Part stores ALSO want to know if I have a 16 OR an 18 Gallon Tank?.......HOW can I tell which is a 16 gallon vs. an 18 gallon Fuel Tank???
I AM AT MY WHITS END.........PLEASE HELP !!!
PS: YES- FP Relay & assoc Fuses also checked

PLEASE & Thanks for any HELP !!!
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