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  1. hatzie

    ABS Module Bleed procedure not bleeding all circuits?

    All the display tech of 1988 doesn't help. Mine lacks a backlight so it can be a challenge to read in low light. If you're getting jumbled characters you probably need to re-seat the celluloid display ribbon cables. My MODIS isn't great either, even with a new 2.5mm CCFL backlight tube. It...
  2. hatzie

    88-98 Service Manuals

    Similar to Volkswagen in the 1970's. Power at the top, ground at the bottom. My 1977 VW A1 & B1 chassis shop manual wiring diagrams are organized that way.
  3. hatzie

    ABS Module Bleed procedure not bleeding all circuits?

    D-sub connector nuts on rs232 serial and parallel ports and VGA ports and so on used to back out all the time. One of the things that made them so pleasant to use. Don't reef em down super tight. All they're for is to make sure the connector doesn't back out from getting jostled. Screw them...
  4. hatzie

    OBD1 ABS Power Brake Bleed - Kelsey Hayes 4wal - Snap-on MT2500

    Same way mine came. I never put on the stickers. I haven't been looking at evilbay Tech2 auctions but I'm not shocked. eBay is a mess and getting worse just like Amazon and several other e-commerce platforms that have "matured"... more like metastasized. Not super interested in the...
  5. hatzie

    OBD1 ABS Power Brake Bleed - Kelsey Hayes 4wal - Snap-on MT2500

    The Diesels were odd critters. I had a 1995 K2500 with the 6.5L Turbodiesel til I bought my 2000 C2500. The ONLY tool I ever successfully used to talk to that truck was my Tech2 Clone. The Diesel forums had some commentary at the time about how problematic the 1993-1995 6.5L ECM were to...
  6. hatzie

    OBD1 ABS Power Brake Bleed - Kelsey Hayes 4wal - Snap-on MT2500

    The Tech2 will talk to the ABS and every other system on your GM, SAAB, Suzuki, Isuzu, ... As long as the PCMCIA binary is available and you have the ability to burn a PCMCIA card from the Binaries. If the Tech2 will not initiate an ABS bleed function on a particular controller then that...
  7. hatzie

    MT2500 ?

    You can never have too many Oscilloscopes. I have eight right now. Three are handhelds. The Tek 545 is an antique 30mhz boat anchor loaded with tubes that doubles as a space heater. I've been told you can tell you have a problem when you have more than three. LOL
  8. hatzie

    MT2500 ?

    I found the MT2500 & the US Domestic & Asian software manuals on the Snap On web site and I've copied them to Mediafire JIC they decide to completely stop serving them up. These seem to have most of the same information the 2002 printed manuals in my MT2500 have with the exception of MT2500...
  9. hatzie

    88-98 Service Manuals

    I'm unable to edit the opening post for this thread. Here are the links to the three PDF files. Remy Starter Upgrade Service Bulletin : Remy 10MT Direct Drive Starter to PG260 Gear Reduction Starter Upgrade Engine Parts Book : 2002-2004 5.7L V8 Engine OEM Parts Engine Service Manual : General...
  10. hatzie

    MT2500 ?

    Probably, if you can find the software cartridge(s). The Tech1 & Mastertech parts are getting a little thin on the ground. If you have a 96 97 98 or 99 domestic primary cartridge or the Black programmable primary cartridge with US Domestic unlocked, you have one of the better tools for the...
  11. hatzie

    Trying to pop out rear lower quarter indent 99 suburban

    There's some interesting tech called Dent Fix MAXI. It's not a paintless repair. You weld on keys and put a rod through and pull on the rod to put tension on the dent and hammer the edges. It's a stud welder with some specialized goodies and I bet it ain't cheap. Robby Layton showed how to use...
  12. hatzie

    1995 Tbi 350. Runs for 30 seconds then dies. Feels rough.

    Hopefully you kept the GM stuff you replaced with Chinesium. All or most of them were likely just fine. Always Always Always test before throwing parts at it. Chinesium parts usually make things worse not better. First thing to do is look at what wiring and grounds those sensors share and...
  13. hatzie

    MT2500 ?

    You want to be careful. If the scratches aren't bad try just polishing with Novus #3 clean with water & 91% Isopropyl alcohol, then #2 then clean again with 91% IPA & water, then Novus #1. Go down the rabbithole to 3000 grit wet paper if you can't remove the scratches with just polish. It...
  14. hatzie

    MT2500 ?

    From my research the Solus Pro installs the OS and software on flash chips soldered on the mainboard like all of the newer tools. It's end of life and I can't backup the OS and software package so if something got corrupted I'd be SOL. As nice as it is, that's one of the reasons I crossed it off...
  15. hatzie

    MT2500 ?

    I found a MODIS EEMS300 with manuals Bundle 12.4 Domestic, Asian, and Heavy Truck and an OK battery at a pawn broker. No European is no big loss to me. I don't work on Euro stuff and I have a current Autel Maxsys for most OBD II stuff. The screen lens suffered from the case rubbing against it...
  16. hatzie

    92-2002 Kelsey Hayes 4 Wheel ABS "Power Bleed"

    I thought the Hayes 4W ABS started in 1995, didn't think they offered anything other than RWAL before 1995. There are a bunch of little hydraulic pumps in the 4W ABS module. They have to be operated in sequence.
  17. hatzie

    88-98 Service Manuals

    More pages is the honest truth. My 2000 T400 is only four volumes. My 2005 T800 manual set is eleven. :Big Laugh:
  18. hatzie

    88-98 Service Manuals

    https://www.ebay.com/itm/142520162291 This one claims to have the factory shop books on CD for the 2000 GMT400 light trucks. If it's a decent set of PDF scans it's a really good price. There are a bunch of incomplete manual sets. Don't fall for that. Make sure all four volumes are there and...
  19. hatzie

    MT2500 ?

    I was cleaning off my workbench in the lab yesterday evening and I found the plastic bag with the old furry batteries that were inside that power pak. Cadmium is really toxic stuff so I don't want to just pitch em in the trash. It'll end up in the groundwater. We already have roadsalt and...
  20. hatzie

    MT2500 ?

    The RJ12 jack you circled on the back is an RS232 serial port. You can send data to a VT100 terminal or RS232 serial printer. The MT2500 doesn't have an external power supply. The vehicle diagnostic port provides power and ground on Terminals 1 & 15 to run the tool. The 9V battery will power...
  21. hatzie

    RPO code and others

    The RPO codes are in the front pages of the light truck parts books. Unfortunately GM stopped printing parts books after the 1993 model year. I have fiches for the 1994-2000 light trucks but I haven't digitized them.
  22. hatzie

    Need help… what is this dang thing!

    The 87-93 wiring diagrams are 11x17 pages. They scale fairly well to Arch-B 12x18 if you have access to a printer that will handle pages that big. I use the PDF search function on the scanned copies then stick Post-it notes in the paper manuals.
  23. hatzie

    MT2500 ?

    Rather than open my brick back up I did a search for one that's been opened. It's been a couple years since I cleaned my scanner. Notice the lovely celluloid ribbon cables for the monitor. Alll kinds of fun to get those situated so they don't come out when you close the shell...
  24. hatzie

    MT2500 ?

    Mildly worried about the longevity of the wounded screen on that one. That kind of screen behavior on a laptop is usually from being dropped. It could be as simple as a loose screen ribbon connector or as bad as a failing grid on the screen or damage to the screen controls on the mainboard...
  25. hatzie

    MT2500 ?

    I've found some tools work better on some model vehicles than other tools. Some functions are available on Tool A but not on Tool B. My Autel is great on GM and Toyota but not as good on VW so I have a Ross Tech cable. I find it best to have a few different tools. My Chinese SP23-B Tech2 is...

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