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1994.5 - 1997 7.3L Power Stroke Diesel  

My OBS refresh/build

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Old Feb 16, 2020 | 09:03 PM
  #76  
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I don't know why but I just don't trust tractors. I guess because it takes two people.
 
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Old Feb 17, 2020 | 02:08 PM
  #77  
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After a lot of swearing and some persuasion with pry bars, and the threat of satanic force, she finally went in. Now to finish all the nit-picky crap and try to crank her over!

 
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Old Feb 18, 2020 | 10:54 AM
  #78  
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That high side PS hose looks grody. It would be prudent to swap it while in that deep...the pop at the worst times. Ask me how I know. Like the vacuum pump.

If you like colder AC, pull the evap and toss it. Replace with a new one. The fins always cake up with age and the time to clean it (plus cleaner) makes no sense. BTDT.
 
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Old Feb 18, 2020 | 08:19 PM
  #79  
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Trans is bolted to the engine and torqued, converter is bolted and torqued, starter is back in and wired up, down pipe is back in, and my new riff raff plenum boots and t bolt clamps are in (as well as the billet plenum inserts) fuel lines are hooked up, and I think that's all I managed to do today. Still have to do the motor mount bokts before I feel comfortable cranking her over, but hopefully tomorrow I'll be able to turn it over with the starter after I put oil in it and clear the cylinders so I can put the glow plugs and valve covers back on.

As for the power steering hose, I think itll be ok for a bit. Theres not a spot of rust under the hood, but that's only because everything has been thoroughly soaked in diesel and oil for the last 20 years.
 
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Old Feb 29, 2020 | 02:45 AM
  #80  
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I dropped a battery in yesterday and cranked it over without the glow plugs in to clear out the cylinders. Now I can button everything up. Got the valve covers back on, the front accessory drive back together, and most of the other little stuff. Radiator and front end should be done today and then I can try to fire her up.

I did find that there is a puddle of brake fluid under the back tire, so I'll be replacing wheel cylinders/brakes before I can drive it.

 
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Old Mar 22, 2020 | 05:39 PM
  #81  
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Well I got her all together and tried to fire her up. No dice. I think the CPS is bad. No tach while cranking. I cranked it in 20 second bursts anyways to try and fill the oil galley in the heads and prime the fuel. The bowl is filling up with the pump so I know that's working. No leaks anywhere, and no weird noises. Just no start and no smoke from the exhaust. New sensor (motorcraft) will be here tuesday and we will try again!
 
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Old Mar 25, 2020 | 08:47 PM
  #82  
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Put in my new CPS today. Still no rpm on the tach while cranking. Batteries died while I was doing my thing, so I am currently charging them. I got my forscan out and it reads the truck, so tomorrow I'll pull ipr, icp, and rpm pids to see what is going on with everything. I'm guessing the IPR needs to be replaced based on reading 10.0 ohms on the coil, and the spec being 10.2-10.6 (my reading was through the harness so I'm assuming it's at least 0.1 ohms higher than actual). We will see what tomorrow holds! Hopefully I can get her started!
 
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Old Mar 25, 2020 | 10:25 PM
  #83  
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Can you check the harness all the way to the main engine terminal for your CPS? You should get a wait to start and tach while cranking.
 
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Old Mar 26, 2020 | 02:51 AM
  #84  
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I get a wait to start and I also get a little flicker of the tach but nothing big
 
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Old Mar 26, 2020 | 08:32 AM
  #85  
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Make sure the computer is plugged in. Maybe pull the connector and clean it and reinstall it.
 
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Old Mar 26, 2020 | 11:25 AM
  #86  
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Originally Posted by nateairman
Make sure the computer is plugged in. Maybe pull the connector and clean it and reinstall it.
I wouldnt get a wait to start light if the computer is unplugged would i?
 
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Old Mar 26, 2020 | 04:27 PM
  #87  
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Originally Posted by afmedic
I wouldnt get a wait to start light if the computer is unplugged would i?
Correct.

wiggle the main engine connector. No tach is where you should focus before spending too much money.
 
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Old Mar 26, 2020 | 08:24 PM
  #88  
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Will do! I'm gonna try to mess with it tomorrow. I'm going to connect my computer and see if itll read the rpm through the pcm and then go from there
 
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Old Mar 27, 2020 | 03:53 PM
  #89  
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SHE RUNS!

After a good charge on the batteries, the CPS does in fact work. It was just cranking too slow to register. Cranked for a bout 4 cycles, and got it to hit. Couple more trys and she fired up! Loped real bad as expected until it smoothed out but she runs very smooth and much quieter than I anticipated. The turbo whistle through the stack is magical, and it sounds amazing!
 
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Old Mar 27, 2020 | 07:36 PM
  #90  
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Alright! It's always fulfilling when they fire up after a repair. Good job!
 
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