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  1. JavaMan

    4l80e lost forward after being parked for months

    I got a 96 K2500 Suburban 145k miles, no forward movement, but can reverse. Worked great prior to being parked for months. So first a little history. Trans fluid was changed at 62k miles, medium darkness, then changed again at 114k miles, medium darkness. We started a vacation a few days later...
  2. JavaMan

    Hot air entering cab

    I've been having issues with the AC not cooling well. Its a 96 Suburban K2500. But the pressures high and low are where they should be. I was checking to see if the blend door wasn't working right, I found hot engine air blowing into the cab right at the AC recirculation intake. Everything right...
  3. JavaMan

    Brakes got soft

    I was driving today, someone cut me off and I stomped the brakes. I noticed afterward that my brake pedal is soft. Still stops ok. If I hold down on the brake when stopped it makes a hissing noise. Sent from my SM-G965U using Tapatalk
  4. JavaMan

    Sudden loss of power and backfire at idle

    Driving on the freeway late evening in my Suburban 2500 4x4 7.4L, engine suddenly changes pitch a little, and slows down. I adjusted the throttle a bit and kept my speed. It was enough of a difference that it was downshifting on the small hills, which it normally does not. Later, getting off...
  5. JavaMan

    4l80E Slips when warm

    I bought a 1996 Suburban 2500 4x4, with the 454 and 4l80e about a year ago with 113k miles on it. It was priced at $5000, but when I went in to look at it, they said it needed fuel lines replaced which was to expensive for them to do, so they offered to sell it to me as-is for $4k. They gave me...
  6. JavaMan

    4l80e problems

    I bought a used 96 Suburban 2500, with the 7.4L Vortec at 114k miles. According to the logs from the previous owner, the transmission fluid and filter was changed back in 2005 at 63k miles. I was worried about issues just changing fluid that's that old, so I did drain a gallon of ATF and refil...
  7. JavaMan

    Anyone tried a TCI 6 speed 4l80e?

    My stock 4l80e is showing signs of age, slipping in third gear. It's in a 2500 Suburban, 115k miles, I have a 6400 pound travel trailer that I pull a few times a year, and a cargo trailer in that same weight range loaded, that I pull. This being AZ, the summertime temps are 110+, which makes...
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