Posted by cdm on Saturday, July 31, 2004 at 7:44PM :
I INSTALLED FEDERAL MOGUL-CARTER HIGH PERFORMANCE PARTS, 12 VOLT ELECTRIC FUEL PUMP P4070, WHICH IS RATED 4 TO 5-1/2 PSI, ON MY FUEL STARVED M37. IT IS WORKING GREAT. I RAN ABOUT AN HOUR,HIGH SPEED,UP STEEP HILLS, NEVER COUGHED LIKE BEFORE.
THIS TRUCK HAS BEEN HAUNTED, IT HAS NOT RESPONDED TO ANY MANUAL PUMPS, NOR TO ELECTRIC PUMP 3-4 PSI.WORTH TRYING IF YOU ARE HAVING SIMILAR PROBLEMS.