diagnose

  1. N

    Popping sound when in reverse

    Hey yall, I have a 2002 Wrangler 4.0 engine with automatic transmission. Started it up today and threw it in reverse to back out of the garage before letting the engine warm up. When I put it in reverse there was a rapid popping sound. Any other gear and there wasn’t a sound only reverse. I let...
  2. F

    Engine Sounds - opinions

    Just purchased this 02 4.0 auto as a project I plan to keep for a long time - relatively new to jeeps and my own maintenance so pardon my frequent questions. I am getting to know the jeep and I’ve noticed a ticking tapping noise on startup that seems to be similar to what others describe as...
  3. Logan White

    Engine Sputtering and Dying 2004 LJ

    My 2004 Jeep LJ automatic is having some trouble sometimes on startup, the engine will shake pretty hard, and it sounds like a pretty bad misfire, but when I turn the key off, and restart the engine, the problem usually goes away and it runs smooth as normal. This has been occurring on starts...
  4. JTR

    TJ is throwing code 1687

    I posted a separate thread thinking it’s a separate issue but now I realize they correlate. I have an 04 wrangler and the dash lights went out I’ve been trying to diagnose it. Today my Jeep beeped at me but didn’t throw the engine light on. I checked the code it’s 1687. How do I fix this? I...
  5. trizap

    Differential Replace or Overhaul

    I was getting a "clunking" sound every time I engaged a gear. My mechanic opened up the rear diff (DANA 35) and this is what it looks like before brake cleaner: After brake cleaner: Clunking sound when moving gears Replace? Overhaul? Thanks, gang.
  6. mattstj

    Do I need a new wheel bearing or a new axle?

    Recently my jeep developed a very loud squeak from the front passenger side wheel. The squeak seems to be louder at lower speeds, and it speeds up and slows down with the rotation of the tire. It occurs regardless of brake pressure, and will happen only when I'm turning (direction doesn't...
  7. Roxanne01TJ

    Constant Grinding Sound.

    Hey all, I have recently just finished a 5.2 magnum swap on my 01 tj. Rebuilt 5.2 magnum mated with an NV3500 Manual trans. NP231 T-case from a Cherokee. I did not touch the trans before installing it because I have never rebuilt a trans before. I did however rebuild the motor and that went...
  8. Bfitz607

    No spark help

    Hey guys, my wife a 1997 TJ 2.5 auto. Its a winter car for her and its time to get it running. I've been trying to tackle a no spark condition for the past few weekends. The jeep has a new crank sensor, new coil, new cam sensor, new cap, new rotor and wires ohm out good. I replaced the entire...
  9. Zedd

    Help Diagnosing Coolant Leak

    Thoughts? New to Jeeps and new to car repair. If I can diagnose it I’m confident I can repair it. I think it might be the cap or maybe the tube’s clamps? I’m hoping someone will be like: “Oh I had this totally happen. It’s ____.” 😂