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  1. 4.0 acting up please help

    Performance Garage and Street Tech
    Hi all, I have a 97 grand Cherokee wth the 4.0. It's got 137xxx on it, just some background. It sputters a lot, like if you can say blup blup blup moderately fast, you know what it sounds like, it idles low (around 500 rpm) and it likes to stall from time to time, not always, just often, it's...
  2. 1995 ZJ Stalling Troubleshooting

    Drivetrain Tech Center
    So long time stalker first time poster. I present to all you ZJ gurus my Jeep in the hope you can help me. VEHICLE: 1995 Grand Cherokee Lardeo 4.0 BACKROUND: I bought this a few years back after a few thousand miles I had issues with stalling followed by periods of no start for about 30-60...
  3. Transmission/Transfer Case Lock Up? The engine is snubbed when put into a gear.

    Drivetrain Tech Center
    Just recently picked up a 1997 Grand Cherokee Limited for a great price. The sale was disclosed as having a bad transmission. The previous owner states that it went out all of a sudden. I thought that was strange. It runs great with the 4.0 I6. Idles, revs, fine. The minute you put it into...
  4. ZJ 4.0L Weird idle, then dies. Does not run propperly.

    Drivetrain Tech Center
    I have a 96 Jeep Grand Cherokee Laredo 4x4 w/4.0L. I have been having an issue where it will run fine, but randomly cut off. It currently has no catalytic converter and the rear O2 sensor is zip tied up, but still plugged in so no codes get thrown. This is done on tons of Cherokees. The rear O2...
  5. Hi All

    New Member Introductions
    Just picked up a 97 Grand Cherokee Laredo V8 for a really good price. I'm a huge Oldsmobile fan, but I needed something 4x4 for Connecticut winters, and possibly for some towing. The owner was having some difficulty with it stalling out on him, and listed it as not running, but then when I...
  6. Will a 1996 42RE work in a 2001? Both GC 4.0

    Drivetrain Tech Center
    Recently had transmission failure in my 2001. Was told that 1994-2004 42RE transmissions were the same -- Bought a used 1996 42RE and had installed. The jeep ran great the 1st time it was driven - shifted perfect. Pulled it back in the shop to re-check fluids and when it was time to take...
  7. Stalling OUT!!

    Write Ups/How-To
    This maybe long but stay with me because I'm at wits end! 2001 Grand Cherokee Laredo, 4.0 IL-6, no mods.. Four days ago, I filled the tank up and the very next day started all my headaches. My wife was driving my Jeep, (I know bad call), and it stalled on her twice, she was able to restart...