I recently installed a '98 Powerstroke Ambulance motor in
my '95 5 speed crewcab dually. Since the computer plug
ins were different we didnot change the computer and
since it ran decent left it alone until I had more time.
The time is now and my question is, since the '98
ambulance motor and computer were automatic and the plug
ins are different can/would I gain to try to have the '98
program "flashed" into my truck. The truck runs better
late on a cool night than in heat. What about going to a
chip instead of trying to fix my ECU?
Also would removing or replacing the converter and or
muffler help mileage/power?
Any help or ideas APPRECIATED!!!
Don

It is a well known fact that any motor, gas or diesel will run better on a cool damp day or night. Question at hand is this, does your 98 have split shot injectors or the same as the 95? To find out you will need the ENGINE serial number. Any Ford dealer should be able to supply you with this info. If by chance you can get the vin from the truck this engine came from they can tell from that. If the engines are compatible other than changing the exhaust flow you will more than likely find no change in performance or fuel mileage. By the way do you hear the fan clutch kick in on hotter days, this will steal power and performance from the engine. First thing you want to do is check the things that are free--call a dealer with the info.


Mike