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  1. melwade

    Fast Idle - No Shift - 90 4.0

    I just replaced my engine. Runs great now, but the idle stays at 2200 rpms and the transmission won't shift. I'm leaning toward a vacuum leak - however i've replaced most of the vacuum hoses. Here are some of the other accessories I replaced in the process: Alternator - now 120 amp...
  2. melwade

    New Engine Won't Run Right

    I've just put a rebuilt engine into my 1990 XJ w/4.0 automatic. It starts, but runs really rough. If you try to increase the throttle it runs slightly weaker without any increase in rpm's. I talked to the place I purchased the engine from today and they immediately targeted the Crankshaft...
  3. melwade

    1990 Engine Replacement - Can't Reach Bolt

    I'm in the process of replacing my 4.0 engine in my 1990 Cherokee with an automatic transmission. The factory service manual say to remove the upper bolts connecting the engine to the converter housing. Sound simple? Not quite! I have found one of the bolts by feel but can't get a wrench to...
  4. melwade

    NP242 Low Range

    I just got a 90 Cherokee with a np242 transfer case. It doesn't seem to go into low range. Hi work great. I can't move it out of Hi to Low while in gear. Put it in neutral and and the lever moves all the way up to the Low position, but doesn't engage. Any ideas of what I'm facing?
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