sounds different

[tapjr512]

I have a 97 F350 crew cab 4x4 7.3, 2 years ago I changed motors cause it sounded like it had a knock. Plus if I didn't plug it in regardless of temp outside it would barely move until temp gauge read normal operating temp. So I put in a 96 7.3 motor. This motor ran great and sounded like any other 7.3. When I put this motor in my truck it ran and sounded like my old motor. I have changed ECM, Injector module, glow plug celenoid, and fuel pump. Please help, if anyone has information or ideas. ALL replies will be grately appreciated.

[BigFuel]

Is your truck a Cali truck or is it one of the other 49?

[tapjr512]

yes it is a cali truck

[BigFuel]

When you swapped the engines did you reuse your '97 injectors? In Californina our engine changed a bit between '96 and '97. Mainly in timing and injection pulse. Parts cannot be swapped back and forth without a custom chip to make it talk. The asses at Ford even changed the wiring harness so that people wouldn't do swaps. Example. You cannot swap in a running engine and use the other year computers or wiring harness. ALL the parts from one needs to be transferred to the other.

Ok now that that crap is over is the exhaust stock? Still has the cat? Are there any pars that you reused? Since you feel that it's the same a the other motor and assuming that you didn't reuse any parts, like injectors, in the swap best bets are on something before or after the motor.

[Chop]

I don't believe the asses at Ford had much choice ,With California's own EPA they were forced as many manufacturers to comply with this particular state's environmental protection garbage .
Now that's why we have a Cali Diesel only and doesn't make sense ,or does it ?

[BigFuel]

Why I say asses is that the harness is the same except they moved a couple pins. EPA cannot hold Any company to what a owner does to their vehical after its been sold. By changing the pin set-up that tripled the price of our computers all for the sake of a timing change with the use on split shots. EPA doesn't bother us about swapping back to '96 style injectors with a custom burned chip. Then the next year they decided that it was more trouble then it was worth and dropped it. Then did it to the early '99 owners. That's dirty and low. I've been to delerships that notice that my truck is a Cali and won't service it.

[BigFuel]

Originally Posted by Chop

Now that's why we have a Cali Diesel only and doesn't make sense ,or does it ?

This is partially due to what's also happening here in Cali with ALL over the road diesels from the lowly jettas to the mighty Semi's. I'm aLl for a clean earth but California is full of over wealthy people that continually think that diesel will always be dirty. They buy Prius without realizing that that piece of crap is more toxic to the environment then any of our trucks.

Secondly it's just easier and cheaper for a company to make only type truck. Nothing we can do about that. When the smog test is just stepping on the gas and seeing how bad and long it smokes they're just wasting our time and making money on it. If any of our vehicles passes any smog test it shouldn't matter how it does it.

[tapjr512]

i used the injectors from the 96

[tapjr512]

before i changed motors i put injectors from 96 motor into 97 motor. cause i was told that was my problem. however it didnt help any. so i pulled them and put them back when i did the swap

[BigFuel]

Ok. Right now your '97 ICM won't drive '96 injectors. The the injector pulse timing is incorrect for the injectors. '96 injectors are more disirable for performance. '97 split shots were to try and keep pollution down and also it saved fuel. Call Beans diesel (or any reliable injector rebuilder) and ask them questions about how to move forward. If all it is is a ICM injector miss match then you could cheaply find a wrecked '94-'96 and take the working harness and computers out of it to swap into yours. Otherwise it would be faster to have these guys burn you a custom chip that will allow you to run your current wiring and ICM.

You haven't said anything about the exhaust. If you still have the Cat on it take it off and inspect it to be sure the things not plugged.