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  1. aggiediesel01

    Air cleaner Valve

    Picture? I don’t remember anything about a tire valve but there is a connection on the lid to attach the Ford diagnostic gauge for measuring vacuum behind the filter on the intake. Look on page 3 of the attachment to see the test gauge and how it connects.
  2. aggiediesel01

    Oil Gauge Reading LOW

    Another common issue is just that the connection has high resistance. Try wiggling that connector and maybe squeeze it a slight bit to make is tight if it not snug already. If that doesn’t help, these trucks have a big round bulkhead connector on the driver side firewall. All the signals pass...
  3. aggiediesel01

    7.3 IDI 15 year first startup issues

    Next time you're there, take the mentioned cover off, fill it full of ATF and cover it back up. Also at the same time, take the fuel filter off pour out the diesel and fill it full of ATF as well. Try to get it to start and then if it dies, let it sit for a day or two with the ATF soaking in the...
  4. aggiediesel01

    What is this?

    Yep, the others are correct. Yours is missing it's protective cover so be careful around those terminals when checking your oil and don't accidently drag your dip stick across the stud where the heavy yellow wires connect, that one has 12V continuously and heavy gauge wire to carry lots of amps...
  5. aggiediesel01

    Water Methanol?

    I guess people aren't really doing this much anymore but years ago someone put together a tech article with a parts list and diagram on what to do if you want to try. Biggest expense is buying a quality pump that'll stand up to methanol. That'll set you back $75-150 at least otherwise the parts...
  6. aggiediesel01

    Belt Loose, also anyone hear a knock?

    Looks like your truck has been well taken care of. I noticed a coolant filter there beside the alternator that’s been added as well. That’s usually a good sign that the previous owner knew what needed to be taken care of on these trucks and likely kept up with the maintenance schedules. Good...
  7. aggiediesel01

    7.3 swap.

    Interesting idea for the split returns, I forgot about the evap system on gas trucks but since the infrastructure is there that’s probably going to work just fine. I am curious how long the in tank pump will last pumping diesel instead of gas but who knows maybe it’ll be the solution to all of...
  8. aggiediesel01

    Ex Wife- my LONG term build

    Great progress, there’s something indescribably satisfying about knowing all the nooks and crannies are clean even if no one will ever appreciate it. I have to ask though, how did you get the headliner out without removing the rear or front window? which door did you use? Does it only work if...
  9. aggiediesel01

    Turbo.....

    I can’t remember if the 088 has a split feed pipe like the 093 but if it does be prepared to make sure that joint is sealed well. Exhaust leaks will make that awesome turbo very disappointing. It needs all the energy it can get from the exhaust to perform as expected. We just got finished...
  10. aggiediesel01

    Should I replace alternator bearings?

    For the DIY guys, rebuilding one isn't too bad a project as long as your rotor and diodes are still good. This place carries quality components and they've got a complete step by step rebuild video. They also have a 200amp high current upgraded stator/diode bridge kit that is pretty reasonably...
  11. aggiediesel01

    Googlefu is weak

    https://www.oilburners.net/media/albums/factory-turbo-ats-093-rebuild.72/page-5 With the new OB update all the pics are backward in the album that's the reason to start on page 5 and work backward.
  12. aggiediesel01

    '86 Extended cab project thread

    Here's some info for rebuilding your turbo before you install it. For some reason after the upgrade here on OB all the pictures in my albums are in reverse order so start here on page 5 and work backward to see the intended order of operations...
  13. aggiediesel01

    a sad day

    Find a rust free southern OBS gasser and swap all your good stuff to it.
  14. aggiediesel01

    PCM Breakout box in Houston

    Yep, that was one of the first items I looked for. Unfortunately after following the diagnostic test plan and trying another known good IDM it looks like the PCM is what's flaking out. Probably just a cold solder joint on some component but it's unlikely that I'd be able to find it with my...
  15. aggiediesel01

    Rear main seal leakage - should I use a stop leak? [1994 IDI w/ turbo]

    If you decide to get gaskets and seals for your turbo contact Russ (www.russrepair.com) or Wes (www.classicdieseldesigns.com) they're the only guys around that have the correct turbo drain valley pan grommet and CDR grommet and gasket. And use motorcraft TA-31 on any surfaces that need RTV. None...
  16. aggiediesel01

    Twin Turbo setup 7.3idi

    To the OP: Since mouse brought up Wes, you're only about 80mi from him. Before you jump into the deep end you should check out his website and maybe setup a visit to see what else can be done. www.Classicdieseldesigns.com
  17. aggiediesel01

    Twin Turbo setup 7.3idi

    The energy of the expanding hot exhaust gasses leftover after pushing the piston down is what drives the turbine fast enough to move more air volume into the motor than is being released. Because of this it is typically best to keep the turbos as close to the engine as possible. However if you...
  18. aggiediesel01

    PCM Breakout box in Houston

    I've got an intermittent shut down issue with my '97 Cali automatic. It has posted P1670 only. The Diagnostic routine suggests using the PCM Breakout to search for intermittent continuity on several circuits between the PCM and IDM. I don't have a breakout harness but would love to rent or...
  19. aggiediesel01

    Compatibility of 87-91’ Dash Cluster Between Gas and Diesel

    How much of a swap was your truck? If you put the diesel wiring harnesses in place then you should have most of the factory wiring for the tach. In the diesel harness there are a couple connectors on the passenger side of the truck behind the battery that carry the tack signal, A/C Clutch and...
  20. aggiediesel01

    E40D Help!

    Also don't forget to check the brake light bulbs at the rear including the 3rd brake light if your year had one. An imbalance in the brake light circuit due to a bulb out can mess with an input to the TCM.
  21. aggiediesel01

    Front tank sending unit.

    Another known compatible RTV like sealant with Diesel and Diesel Oils is Motorcraft TA-31. Amazon will deliver it and sometimes the stealership stocks it and Oreilly's sometimes has it in their stores. It comes in a half size calk tube. Motorcraft says "A specially designed Alkoxy-Cure RTV...
  22. aggiediesel01

    Valve clearance issue

    Also know that Justin had some specific instruction on how to time the cam. Some of his cams had to be installed retarded a tooth but I don't know if it was batch specific or what. Anyway check with him or some of the other guys that have put his cams in.
  23. aggiediesel01

    E4OD Limp mode

    Chase down all the sensor inputs to the TCM and check the wiring harness connectors for loose, corroded, burnt contacts. Tach Sensor, Speed sensor in the rear axle, FIPL voltage, MLPS values in different gears, and make sure the Brake light bulbs and contacts are clean and working correctly...
  24. aggiediesel01

    Clutch hydraulic line?

    The aftermarket offers a steel line with a braided flex section but I think it’s only available as part of an assembly with the master and slave cylinder all pre-assembled. Rockauto has them and I’m sure amazon and eBay too. If you’re going spend money on this, I’d recommend the one from Russ...
  25. aggiediesel01

    Turbo setup ideas/

    If you're still looking and planning, I've got this setup that I'll never use. I don't know who made it and what's in the pics are all I've got. Someone thought it would be a good fit on the 7.3 but who really knows. The turbo is like new and is a T04B but other than the A/R numbers for the...

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