Originally Posted by Carytowncat
My first Bus was a 98 Thomas Prison gransport bus with the t444 motor. Pretty neato. If i had some diagnostics i may have been able to get it running right, but during that time i did learn a lot about that motor and the three main things that go wrong: ipr, cps,... anx something else. lol
But yeah Christopher i can only imagine that since you enjoy computers that motor will be a real treat with a Torque pro type program because there is a lot of jeat stuff happening. The guy i bought it from likes those motors so much he actually bought it back from me
and still excited to see pictures....
the ICP, IPR, and CPS are the 3 main failures... the other issues are the IDM's which are the power supplies that drive the injectors themselves...
if the fuel lift pump goes bad then you can suck air in the injectors and it will act strange...
I took a bunch of readings on mine and videos of the screens since it runs good now.. some references to use in case i have issues.. it does seem to circulate coolant through the radiator rather soon after starting.. so my thermostat may be sticking open.. or there may just be a large bleed on that engine.. I'll know more once I get it to ohio since its been in the upper 30s at night.. it will be a good test of my glow plugs to.. right now in florida i can just hop in and start it without waiting for the "start wait" light to go out because its warm... doesnt even smoke when I do that.. shows I have decent compression still..
but upper 30s while not cold should still require the glow plugs... or at least if i glow it and it starts hard I'll know theres an issue.
if i have to replce any glow plugs I'll tank that dog-gone #8 injector and replace it with an AE.. engine "knocks" bother me even when i know they are completely harmless..
if your T-444E makes the sound... a ford TSB covers what is wrong... international had a bulletin on it to somewhere.. but ive already had one person at a gas station say "dude sounds like you got a rod going...".. my response was to jump in and run the engine up to 2700 RPM where it sounded like a perfectly normal diesel...
and the dude was like "oh my god my friends pickup sounded like that so he parked it and started buying parts to rebuid the engine.. you mean its not broke down??"...
I dont know about his pickup but i dont believe my bus is gona blow a rod..
anyway if you get a knocking sound at HOT low idle its likely this..
im sure most reading this thread know that the ford 7.3 Powerstroke was an engine built by International for ford.. and on the busses it is the T-444E. there are differences however much of it is the same..
if you Hack your PCM you can make the T-444E a powerhouse if you so choose..
with PCM hacking and bolt ons these can be 300-400 HP engines easily... ive got no interest in that as it moves my little short bus pretty decently.. before I hack the PCM id install an upgraded tranny... but I'll probably just leave it alone..
if i feel the need to go fast I'll go get a Hell-Cat or a ZL1 lol...
I often wonder how flyboy can adjust to a school bus after flying choppers and Jets and real monster machines!..