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1994.5 - 1997 7.3L Power Stroke Diesel  

Non-Ca vs Ca Injector sounds

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Old Jun 2, 2016 | 10:19 AM
  #1  
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Exclamation Non-Ca vs Ca Injector sounds

OK Guys, I have 2 Diesel trucks. Both are are 7.3L Diesels. One was made 09/96 (Non-Ca engine w/ 260,000+ miles) and the other 04/97 (Ca version w/ 160,000+ miles). I believe the 1997 7.3L has split injectors while the 1996 is single shot injectors. Do they have different sounds? The 1996 has a better low tone sounding engine while the 1997 has a higher sounding engine. Bothe engine have K&N stock replacement filter and exhaust is just down pipe till where the 2 bolts are to take off the rest of the engine. Im worried about the sounding of the 1997 split injector. I don't like the sound.

shows the difference between the 2 engines

Shows the 1997 engine sounds by its self.

shows the valve springs on the 1997 split shot.
 
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Old Jun 2, 2016 | 11:06 AM
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444dieselrod
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Since you have the valve covers off what's the code on the injectors ?

Should start with AA for singles or AD for splits.
 
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Old Jun 2, 2016 | 11:14 AM
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It would be AB codes for the obs Cali
 
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Old Jun 2, 2016 | 11:17 AM
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Is AD the SD splits? Don't know why I had that in my head....
 
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Old Jun 2, 2016 | 11:20 AM
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Yup.
AA 90cc obs
AO 90cc vans
AB 120cc obs Cali
AD 140cc SD
 
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Old Jun 2, 2016 | 12:57 PM
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Code is AB. I think the injectors have been replaced or rebuilt in the past. Which is better? Single shot? Or split?
 
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Old Jun 2, 2016 | 01:08 PM
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Single shoys, they require less oil than splits, the only advantage I can see from splits is that they are a lot less quieter than singles.
 
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Old Jun 2, 2016 | 01:33 PM
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I frankly don't care about sound lol. I just want to do the best thing I can for the truck. What if I take the nozzles and such from the split and put them into the single shot? How would that do? More hp? Tq? Better mpg?
 
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Old Jun 2, 2016 | 01:38 PM
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That's beyond my comfort zone, maybe DZLJim chimes in.
 
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Old Jun 2, 2016 | 02:36 PM
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It can work but if you never been in these injectors then you have a good chance you'll mess them up. My Advice is leave it Alone
 
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Old Jun 2, 2016 | 02:38 PM
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Old Jun 2, 2016 | 07:44 PM
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Originally Posted by z31freakify
Single shoys, they require less oil than splits, the only advantage I can see from splits is that they are a lot less quieter than singles.
to verify splits are nosier. So many people talk in double negative I don't know what people mean any more.
 
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