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  1. Matthew Jeschke

    PCM delivering wrong fuel mixture?

    @Mudsport96 wow, thanks for all your input. I've done extensive amount of idle and fuel tuning. The fuel is dialed in and for all intensive purposes the PE as well. The injectors are also tuned. It has a new pump but stock LM7 regulator (not the higher pressure L59 flex regulator) however, that...
  2. Matthew Jeschke

    Tru-Cool Max 40k Transmission Cooler

    I did a short road trip about 80 miles to a friends house. First time on highway with this TruCool Cooler. Drive was at around 45F ambient. Trans temp was probably at about 80F. I had to stop and get a box, then cover the transmission cooler. Got it up to around 120F after covering it. Somebody...
  3. Matthew Jeschke

    PCM delivering wrong fuel mixture?

    I tuned it to 14.7:1, pump gas, for non-PE 12.0:1 for PE. @Marky Dissod I think 12.6:1 is best for PE but honestly, I seldom if ever get into PE so it hasn't bothered me much. I just basically turned PE on (isn't on in Truck tune, I think it's rather baked into VE table) and got it close enough...
  4. Matthew Jeschke

    PCM delivering wrong fuel mixture?

    This has been extremely difficult to track down. My truck is starting to get horrible mileage. I am building it and changing quite a few things along the way. I had issues with the evap and thought that might be it too. I revered my tuning changes to a point where I knew I had better mileage. I...
  5. Matthew Jeschke

    Tru-Cool Max 40k Transmission Cooler

    It's below freezing where I live. First time to drive on highway in such weather since I installed this big transmission cooler. Got a bit worried, my transmission temp gauge was well under 100F. At what point is too cold?
  6. Matthew Jeschke

    Sunroof drains

    There's a couple pieces of trim on the A-pillar. One is inside the door jam, adjacent the windshield (I don't have a photo). It's held on by two Philips screws. Remove it and inspect behind it. Next if you haven't already, remove the interior a pillar trim... That sunroof drain is a small rubber...
  7. Matthew Jeschke

    Sunroof Gasket

    I tore mine down, tried to rebuild it... eventually noticed former owner had completely decimated it. I have a BUNCH of small parts for these if you need anything PM me. I'd be more than happy to help you out. Would love to get rid of some of the stuff. Not for sure if I have the gasket but can...
  8. Matthew Jeschke

    NP246 Rebuild - Experiences? Clutches necessary?

    I have another thread, I replaced my clutches and didn't use the tool. I even upgraded the clutches. In my opinion Raybestos GPZ clutches are better than factory... I just measured the old clutch pack, and compared it to the new one. If not you can shim accordingly. FYI ~ I have a second NP246...
  9. Matthew Jeschke

    At home alternator rebuild?

    Genius! I wish my junkyard had a $85 you pull it day! Last time I went they charged me out the ying yang for a couple parts. Love your idea. I still have my old one, ready to rebuild. I had bought that new high output one for $450 with the cable upgrade. Sounds like factory stuff is getting to...
  10. Matthew Jeschke

    Lets see those custom bowties

    That would be cool! I notice some people just use the factory wheels from newer trucks. Looks pretty nice. Did you put a 6.0L in yours? I notice your handle is Vortec6000
  11. Matthew Jeschke

    Tru-Cool Max 40k Transmission Cooler

    May work. Doesn't look like too much trouble just to bend a couple new lines. Only thing is it's something I've not done before so I don't have the tools on hand. On another note, trans cooler is a BEAST. I'm worried I may need to get that bypass if I go anywhere cool? I'm currently running...
  12. Matthew Jeschke

    Newbie here!

    Not sure about upgrades. Couple things come to mind you'll want to do to keep that ruck running for a long time. It's my opinion these items were designed to fail so you'd have to buy a new truck... - Case saver for transfer case (nevermind just saw 2wd) - Sonnax pinless accumulators and...
  13. Matthew Jeschke

    Cant remove hoses from EVAP charcoal canister

    fna sorry for the French. I just went through this myself, separate thread of my own. I broke all of them haha PITA cause I had to remove tank, evap lines and rebuilt it all with new ends. Honestly, GM put JUNK there. Probably all the other manufacturers do the same thing. If I had more time...
  14. Matthew Jeschke

    At home alternator rebuild?

    Welp, another confirmation of me being an *idiot* I had my folks run in and get the alternator checked. However, when I took it off, I noticed it had black dust on the case. I should have known... Tech told them belt wasn't tensioned correctly. He recommended getting a 1/2" shorter belt...
  15. Matthew Jeschke

    Can you identify these fuel tank parts?

    Dropped the tank and forgot to put the clip back bahahaha *ug* Hate to say it did look a little pointless.
  16. Matthew Jeschke

    Lets see those custom bowties

    Thanks, what did you think about doing with yours? There was a guy I think on here, that did a custom paint job with multiple colors it looked so sweet.
  17. Matthew Jeschke

    Lets see those custom bowties

    As in finish? I did a custom paint job on mine nothing too outlandish. Would do same way again, except with a few refinements. Top is OMNI Black, bottom & fender flares are Raptor Liner. I see factory is doing something around the fenders now to avoid rock chips. They clear over the raptor...
  18. Matthew Jeschke

    Tru-Cool Max 40k Transmission Cooler

    Yes that can be done, and is how it's hooked up now. However, the lines don't fit in their bracket then, they are loose under the core support. The return line also rubs on the collision sensor in that orientation. My truck primarily exists off road and will only be a matter of time before it...
  19. Matthew Jeschke

    2001 burban

    I feel ya! My girlfriend asked me to get married, I was all about it but dragging my feet. One week later she was dead. Felt like shit for a long time, kind of still do, but I bout the therapy truck somewhere in the process. 2001 Z71 Tahoe. When lives a beach, I turn wrenches, and or drive up a...
  20. Matthew Jeschke

    Cold case radiator fitment for 8.1L

    I have been drooling over on of those radiators for a while. Wish I'd know about them when my factory one went out. Do you have pictures? Or a video of what you're referring to? I've done extensive work on the Gen III small block stuff but not as familiar with the big block setup. The factory...
  21. Matthew Jeschke

    Tool to make quick disconnect flare on metal hose?

    My favorite solution is the 6AN line. However, I think I'm going to go with the metal hose and a tube nut... curious, how much pressure are in the transmission cooler lines? Double checking... I'm terrible when it comes to fitting specs. Looks like cooler lines are 3/8" OD? Quick connect...
  22. Matthew Jeschke

    Windshield Frame/Mounting Contact Area: Found Painted by Safelite Technician

    I'm not a glass technician but that doesn't make since. GM wouldn't build it if it requires special steps like that to mask parts of the body. Maybe I'm crazy, but sounds like smoke to me. On other hand I could believe if technician didn't prep the area correctly the adhesives and seal wouldn't...
  23. Matthew Jeschke

    Tool to make quick disconnect flare on metal hose?

    Cool thanks!
  24. Matthew Jeschke

    Tool to make quick disconnect flare on metal hose?

    @Doubeleive the 6AN lines look like a good route to go. Looks easier than dealing with metal hose. I may just order all that up. Pretty slick! I had one other idea with the metal hose and that was to just flare the end and one of those nuts on there. Then remove the quick connect and use the...
  25. Matthew Jeschke

    Tool to make quick disconnect flare on metal hose?

    I bought that big trans cooler from trucool. It works AWESOME, but fits like $heet. A guy makes a metal bracket to mount it which is most of the job but needs spaced out from core support as ambient air sensor rubs on condenser and the trans lines fit like CRAP. You have to tweak the trans...

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