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  1. J

    Freshly rebuilt 4l60e granaded.

    I think I'm going to take it back to the tranny shop that's rebuilt it three times now... maybe I can convince them to rebuild it again at a discounted price... smh. Thanks again!
  2. J

    Freshly rebuilt 4l60e granaded.

    Does anyone think that this transmission has any value whatsoever other than as a core? It just sucks that I spent almost $4k on the rebuild, has less than 3k miles on it, now it's completely useless. I have all the paperwork for the rebuild. I wish I had the skill, special tools, and patience...
  3. J

    Freshly rebuilt 4l60e granaded.

    Thank you everyone for your advice. I was really hoping the transmission shop was to blame considering I've have two complete failures after they initially rebuilt the transmission. I have yet to find the cause but plan to recheck everything include driveline length. The company I purchased...
  4. J

    Freshly rebuilt 4l60e granaded.

    This would explain the tc slamming into the pump causing failure. However, from what I can tell, the internals of the transmission are fine. How would the thrust bearing clearance cause the tail end of the housing to explode?
  5. J

    Freshly rebuilt 4l60e granaded.

    It was definitely shimmed. I don't remember the thickness of each washer, (I'll go out and measure them shortly) but there were three gold washers on each pad so in total 9 washers.
  6. J

    Freshly rebuilt 4l60e granaded.

    Pics as promised: I'm no professional but from what I can see there is no other damage to the transfer case or driveline.
  7. J

    Freshly rebuilt 4l60e granaded.

    The same shop that did the tranny rebuild did performed the removal, rebuild and reinstall which included shimming the tc. I had two complete failures failures of the same transmission AFTER the shop had rebuilt it. Both times I had to call a tow truck. The shop claimed that while my...
  8. J

    Freshly rebuilt 4l60e granaded.

    The tahoe is lifted 6". However, it was done before the tranny rebuild. Yes, the same shop did all the work the three times it had to be taken in. They did the removal, rebuild, and install all three times. There is nothing wrong with the transfer case that I can see... which is strange to me.
  9. J

    Freshly rebuilt 4l60e granaded.

    Newbie here but desperately looking for answers. Where to start...? I have a 97' Tahoe I've had for several years now and have probably put more money into it than I'd like to admit. The last was having the 4L60e rebuilt by a reputable transmission shop. After forking over $4k I wound up...
  10. J

    Need help diagnosing after rebuild.

    It is a bigger cam but not crazy. This is the second cam swap I've done on this motor, (first one being an LT4 Hotcam). And even with that cam I had the exact same issue. With valve lash, I did it not running. Found as close to zero lash as I could then half turn. I'm wondering if I...
  11. J

    Need help diagnosing after rebuild.

    So I've done the PCV vacuum test and I'm showing positive and not a vacuum. It wasn't much but enough to blow off my gauge. I did perform a fuel pressure test. 55 PSI cranking and idle. However, it leaks down drastically once it's shut off. I mean not crazy but I'm reading 43 PSI after...
  12. J

    Need help diagnosing after rebuild.

    So I'm curious, did my local machine shop over port my heads? I asked them to gasket match my heads and now I'm wondering if that might've been too much and could be causing an internal vacuum leak? If so, is there an easier and less expensive remedy for this other than purchasing new heads...
  13. J

    Need help diagnosing after rebuild.

    You're right, .cold start. Didn't have much time at break to let her warm up. But the numbers are even worse after warming up. Looks like I'll be looking for a vacuum leak again this weekend. I'm hoping to hell it's not an internal leak, tearing into this motor for the third time this year...
  14. J

    Need help diagnosing after rebuild.

    I'm Utah which is about 5,000 feet.
  15. J

    Need help diagnosing after rebuild.

    I can get a more recent compression numbers and fuel pressure after work today. I had check them both before Ave they were in spec.
  16. J

    Need help diagnosing after rebuild.

    Sorry for the screenshots, I'm on break at work. I do have P0300 (multiple random misfires) and runs extremely rich at idle but goes away after while driving or of i unplug the MAF. But then I have no power. My fuel trims are usually -3 but I was messing with them this morning and reset them.
  17. J

    Need help diagnosing after rebuild.

    I have a 97 5.7L L31 I just finished completely rebuilding, (with a Black Bear Tune). The issue I'm having is its a hard start and stalls anytime I put it into gear and I have hardly any power under load, struggles to make it up any decent size hill. It's great first thing in the morning but...

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