cfherrman
Senior Member
I think that's an idi, is there a injection pump in the middle?
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Medium duty truck questions
- Thread starter Columbo
- Start date
Pretty sure its the T444E, not only based on the year but you can almost read the badge on the hood and also appears to have the wiring harness that runs under the valve covers. Fuel filter/bowl mounted on top also looks like the later models.
Regardless, I agree with the others, leave the power level set where it's at. I wish my 4700 had more power, but not bad enough to mess with anything. Its reliable and gets the job done which is what matters most.
mekanik
Senior Member
The Manuals for that engine and truck are still available. I would download them just in case.
T444E Diagnostic Manual
T444E Service Manual
1996 4000 Series Wiring Manual
T444E Diagnostic Manual
T444E Service Manual
1996 4000 Series Wiring Manual
Last edited:
Columbo
Senior Member
Thank you! I’ll get those saved.
Columbo
Senior Member
Question on oil pressure: thanks to @mekanik the manual says at low idle speed (700 rpm) minimum 83 kPa (12 psi), at high idle speed 276-345 kPa (40-50 psi)
Currently, on this truck the oil pressure gauge sits between 30 and 40psi when running. Thoughts? What’s the minimum oil pressure during driving conditions that would be considered normal?
Currently, on this truck the oil pressure gauge sits between 30 and 40psi when running. Thoughts? What’s the minimum oil pressure during driving conditions that would be considered normal?
mekanik
Senior Member
How are you measuring the oil pressure?
High idle is max governed RPM so 30 to 40 running sound good to me.
High idle is max governed RPM so 30 to 40 running sound good to me.
Columbo
Senior Member
So far, we just measured oil pressure with the gauge on the dash at idle and when driving. Might be worth putting a gauge on the engine fitting to confirm that the dash gauge is accurate?
cfherrman
Senior Member
It's a t444, not a t444e, I do not know what a t444 is
A t444 is a 7.3 idi mechanical. The one the op has is a e lecteonic
pumkinhead
Well-Known Member
you can add a hydra chip if you want to increase hp, same engine that is in 7.3 powerstrokes
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Coup
Member
Thanks ALOT. was getting ready to research this for my 1980 S1955.
Willie B
Senior Member
I bought a landscaper's truck, (in the avatar), 1976 Chevy C65. I kept it 14 years. It developed fuel problems, and I bought a fire truck, put the dump body on it. It was about 10,000 miles on the wheels, plus 650 hours on the engine. Small town fire companies run the trucks outside, leave them idling to circulate water preventing freeze up. I wasn't too worried about mileage or hours. Cat 3208, 10.4 litre turbo diesel. It sounds powerful, but not so much. 
Truck Shop
Senior Member
Well I suppose if it's a electric oil gauge you could do like Ford did to make customers
happy back in the early 6.9/7.3 days. Customers complained of oil gauge showing real
low oil psi with the crappy Ford instrument cluster. Dealers would tell a customer to drop
off in mornings and it was a 8 hour warranty fix with oil pump--never happened. What
did happen was a shunt wire was installed between sending unit and terminal wire to
create resistance which raised the needle----Fact. When I worked a short time {thank
goodness} for a dealer, I installed several of those phony buggers. At idle the 12 to 20
psi would just move the needle with wire installed at idle it looked like 25 to 30 psi.
All at no cost to you.
*
Corndogs.
happy back in the early 6.9/7.3 days. Customers complained of oil gauge showing real
low oil psi with the crappy Ford instrument cluster. Dealers would tell a customer to drop
off in mornings and it was a 8 hour warranty fix with oil pump--never happened. What
did happen was a shunt wire was installed between sending unit and terminal wire to
create resistance which raised the needle----Fact. When I worked a short time {thank
goodness} for a dealer, I installed several of those phony buggers. At idle the 12 to 20
psi would just move the needle with wire installed at idle it looked like 25 to 30 psi.
All at no cost to you.
*
Corndogs.
cfherrman
Senior Member
That better than now as the oil psi gauge on a Ford means you have at least 5 psi
cfherrman
Senior Member
Says t444 engine family on the sticker, do they not list the e on it I thought they do i don't even know the year of the truck here either
cuttin edge
Senior Member
Kinda surprised to see the engine sticker both French And English. Do you suppose the motor was replaced at one time by a used motor from Canada, I thought maybe the truck could have been bought used in Canada, but the dash is MPH, unless it was changed
Columbo
Senior Member
Good question. Nothing else in this truck appears to be Canadian or French, so who knows?
cuttin edge
Senior Member
Yeah but that's several languages. In Canada everything you buy, is French and English. I'm looking at a can of Monster, and everything is those 2 languages. If I get a letter from the government, my property tax bill. English on one side, French on the other. As I type this, I have another computer, and I am copying it over in French. Be the same on a truck here, but no spanish, or arabic. New Hampshire is not far from Canada. Maybe the engine was replaced.