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Search results

  1. THEFERMANATOR

    Please HELP....6.5 non turbo diesel 4L80E in a chevy p30 school bus will not shift into overdrive.

    As far as I know the only reluctor wheel that will fit in a 4l80e is the 40 tooth. When the reluctor is not present they will sometimes read the parking pawl, but that is only 21 teeth. Even with the speedo reading off, that shouldn't effect shifting as the PCM uses the vssb's 40 tooth output...
  2. THEFERMANATOR

    Please HELP....6.5 non turbo diesel 4L80E in a chevy p30 school bus will not shift into overdrive.

    How long have you had this van? When did the problem start? Why was the trans rebuilt. A 99 should use a vssb, not a drac(similar boxes, but the vssb has more outputs). Has any wiring work/repairs been made to this vehicle?
  3. THEFERMANATOR

    Wiring Diagram Needed 1994

    The factory diagrams can be found here. http://67-72chevytrucks.com/vboard/showthread.php?t=700011
  4. THEFERMANATOR

    Radiator Leak

    I have no problems with dexcool, I run it in both of mine. Many imports run it as well now. As to the trans cooler lines, most radiators have coolers in them for 5/16" lines, starting in 97 for the 4l80e, they changed the cooler circuit which increased the flow through the cooler, so they went...
  5. THEFERMANATOR

    4L80E blues

    Verify tps adjustment, make sure it is reading fluid temp, did he put the 91-93 only epc in it or did he cheap out and put the 94-03 in it, brake switch adjustment, check it for codes, put a trans pressure gauge on it?
  6. THEFERMANATOR

    4L80E No Power - Recent Engine Swap

    Early 4l80e's had a silicone seal that was prone to cracking. Later they came out with a metal sleeve with an integrated rubber lip seal that was much tougher. The fluid level should drop a good 2-3 inches with the engine running. When the filter seal fails they have a hard time picking up fluid...
  7. THEFERMANATOR

    Radiator Leak

    That is your drain plug. If you pull it out you will probably find the oring on it is broken.
  8. THEFERMANATOR

    4L80E No Power - Recent Engine Swap

    My 1st check would be to check the fluid level with the engine off, then start it up, and recheck the fluid level. See how much the level drops when it starts. Your symptoms sound alot like a cracked filter seal which makes it suck air instead of fluid. And to eliminate electrical, unplug the...
  9. THEFERMANATOR

    2004 Yukon XL 2500 LBZ

    Cali used to have all those same requirements and would allow diesel swaps so long as the diesel was emissions certified for a like vehicle(the engine from a 2500 pickup to 2500 Suburban was acceptable, but say the engine from a 2500 pickup to an S10 would not fly as they were in different...
  10. THEFERMANATOR

    1995 GMC Suburban ABS brake problems

    I bought them YEARS ago off of ebay from a wholesale closeout sale. Not sure if you can still find them or not. Found a place that shows to have 25 of them, kent moore j-39177 https://www.toolsource.com/abs-testers-c-1321_79_80/proportioning-valve-depressor-for-abs-brake-systems-j39177-p-61417.html
  11. THEFERMANATOR

    1995 GMC Suburban ABS brake problems

    DO NOT PUSH IN ON THE VALVE LIKE THAT YOUTUBE VIDEO! Those are NOT bleeders, those are the valves in your proportioning/combination valve that is no longer being produced or available for sale, so if you damage it you're SOL. The video showing the plastic tool for bleeding does not apply to the...
  12. THEFERMANATOR

    Got a new desktop

    My main use right now is converting all of my dvd's & blu-rays over from disc to .mp4 files. I have the raspberry pi3's set up with kodi to play .mp4 video files so that I can upload all of our movies onto a hard drive and play them through the media centers on the TV. It is alot easier to carry...
  13. THEFERMANATOR

    GMC 6.5 Dually

    I was on vacation last week and trying to nurse my back. I put off back surgery this summer hoping to spend some time with my kids and all of my summer plans went to crap on me. We'll find a time for me to get the tech2 on it here shortly.
  14. THEFERMANATOR

    Got a new desktop

    I have 2 Raspberry Pi3's that I use for media centers and also as game emulators. Probably going to upgrade them to Pi4's for better video playback. I went on vacation so I haven't had much time to use it, but I did do some video conversion work. It runs handbrake at right around 4.1ghz at 80%...
  15. THEFERMANATOR

    94 4l80e limp mode

    Do you know what all was done during the rebuild? Was the AFL valve upgraded with the transgo(preferred) or sonnax valve? Were the original shift solenoids re-used and if so were they the screened ones? It can take a certain number of shifts or time for some codes to set. I know sonnax makes...
  16. THEFERMANATOR

    2004 Yukon XL 2500 LBZ

    You mean like this. https://www.autoblog.com/amp/2012/10/31/diesel-power-sets-land-speed-towing-record-at-141-998-mph/
  17. THEFERMANATOR

    Got a new desktop

    Decided to get a new computer. I need more than what my tablet can do and I want to save my laptop for strictly tuning purposes. Did ALOT of searching and decided on the MINISFORUM X400, 16gb ram, 512gb ssd hard drive, and an AMD Ryzen 7 4750g 3.6ghz(overclocked to 4.4ghz) processor. I wanted...
  18. THEFERMANATOR

    Hard to start - Extending Glow Plug time

    Up to 95 originally had non self regulating glow plugs in them. You could glow them for 8 seconds, but going 10, and they would explode(I did this with one testing it). 96+ had self regulating plugs meaning they could stay on for however long and not burn up. So obd1 does not have the glow time...
  19. THEFERMANATOR

    Hard to start - Extending Glow Plug time

    How old are the injectors? A 6.5l shouldn't need much if any glow time to start at 75-80 degrees. I know mine started like crap in Florida when my injectors went bad and started dribbling.
  20. THEFERMANATOR

    Transmission lock up....

    It needs balanced. Take both shafts in and make sure to have them marked how the slip splines go together. The 3 joints MUST be in unison or else it will destroy the driveline from the vibrations. For brake parts I will use ONLY RAYBESTOS from now on. I went through hell in my Suburban with...
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