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MJ Tech: Modification and Repairs

For all your Comanche (MJ) needs.  An excellent place to ask questions, and to discuss modifications and issues.

32670 topics in this forum

  1. Open cooling system fan switch

    By Jdde,
    • 4 replies
    • 800 views

  2. 1 qt in 100 miles oil loss decreases by 75% with oil cap off + Hard to interpret engine hose charts. '89 4'0L

    By Dal3,
    • 7 replies
    • 957 views

  3. ‘88 interior to ‘99 XJ interior.

    By 1999 MJ,
    • 1 reply
    • 540 views

  4. Replacing Fuel Line to Fuel Rail

    By RiversideMJ,
    • 1 reply
    • 866 views

  5. 1986 Long Bed Rear Bumper

    By DadsJeep,
    • 6 replies
    • 1k views

  6. Turn Signals no longer working

    By EdJarHead,
    • 4 replies
    • 1.2k views

  7. About the parking brake cable

    By Spinnakerblue89,
    • 7 replies
    • 877 views

  8. Fuel Line to Fuel Rail leaking

    By RiversideMJ,
    • 6 replies
    • 1.2k views

  9. Idle air control and idle speed control

    By joeCor,
    • 3 replies
    • 636 views

  10. Front Coil Springs & Suspension (de)Codes?

    By Gojira94,
    • 6 replies
    • 1k views

  11. Engine to chassis short- cluster issues

    By RCdumbass,
    • 2 replies
    • 430 views

  12. AMC 2.5 to GM 2.5 swap

    By TFGgarage,   
    • 1 reply
    • 758 views

  13. What’s a good upgraded radiator?

    By Strokermjcomanche,
    • 10 replies
    • 1.5k views

  14. Help, no power at all. Electical issue.

    By Gradinen,
    • 9 replies
    • 935 views

  15. Gal here: Umm knocking under valve cover..87 mj autom 4x4

    By fiddlermj,
    • 2 replies
    • 557 views

  16. Battery tray

    By Ken Seymour,
    • 1 reply
    • 531 views

  17. O2 Sensor

    By dreaminbohemian,
    • 3 replies
    • 760 views

  18. Big Ton Leaf Springs Source? 1 2

    By robfg67,
    • 28 replies
    • 4.2k views

  19. exterior trim strip, front of window ('88)

    By brucecooner,
    • 12 replies
    • 1.3k views

  20. AC repair questions

    By BentGear,
    • 5 replies
    • 789 views

  21. Bench Seat Seatbelt Sleeve Photo needed

    By Salvagedcircuit,
    • 17 replies
    • 1.4k views

  22. AW-4 Cooling Line Connections

    By AZJeff,
    • 3 replies
    • 1.2k views

  23. Where to find a good quality isa motor?

    By CheepComanche,
    • 5 replies
    • 755 views

  24. M.R.278 COLLISION MANUAL

    By Ken Seymour,
    • 2 replies
    • 682 views

  25. 1986 Mj No crank

    By Brandon12946,
    • 4 replies
    • 775 views
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