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  1. MudderChuck

    What are the signs of a bad head gasket/cracked block?

    I'd get a radiator pressure tester, even if I had to make my own. Pump it up to around 25 PSI let it sit for awhile and watch the pressure gage. If it goes down, it's obvious there is a leak somewhere. Don't pump too much pressure in there anything over around 30-35 PSI may pop a hole in...
  2. MudderChuck

    Is it safe to drive with a bad front axle u-joint?

    I'd read up on it a little first, getting the hub off can be a pain. Don't even try to get it off with a puller, it can/will pull the hub apart and screw it up. A little trick I use is to jack up the side I want to change really high (and put it on a jack stand, block the rear tires just in...
  3. MudderChuck

    Is it safe to drive with a bad front axle u-joint?

    It can mess up the axle seals, then you have a U-joint and the seals (leaking gear oil) to deal with. Seals are a lot harder to chnage than a U-joint is. It may also wear all the way through the bearing cap, screwing up the axle yoke. It is likely, eventually, to unbalance the axle shaft...
  4. MudderChuck

    Cherokee Problem

    Thinking we may have multiple issues here. You said "now turn key nothing turns on not even radio" Nothing means nothing, not even the headlights???? There are fusible links (fuses) hooked up near the starter relay, the starter relay is the silver box near the battery. A good place to start...
  5. MudderChuck

    Radiator cleaner

    The copper leaches out of the inside of the radiator electrolysis and/or chemically reacts with the coolant (acidic) and/or chemically binds with the minerals in the water. Experience tells me if you get it totally clean the copper passages may be much thinner than a new radiator. The clean...
  6. MudderChuck

    Answer me this

    Sure I believe there is evolution, you'd almost have to have it for most any of the really successful species to survive. I grow a garden, I see it often. There almost has to be a pool of acceptable and workable recessives (spare genes) or radical climactic change, disease and other things would...
  7. MudderChuck

    Answer me this

    I also find it hard to swallow Darwin. Random mutations and survival of the fittest. Takes a minimum baseline (gene pool) for a species to continue. Been proven many times, too few of a given species leads to extinction. Random mutation, the human body has about the same number of parts...
  8. MudderChuck

    Answer me this

    It is likely more involved than just tradition. IMO some people just prefer to stay in touch with their roots. Religion right or wrong, I sure don't know for sure (under qualified to judge), but I do respect people who care for their traditions and cherish their roots. In Bavaria, Gruess...
  9. MudderChuck

    87 wagoneer. once more

    With the cover on I've never seen the chain jump on a 4.0. I have heard of them jumping in Chev's, have seen them jump in old Dodge V-8's (especially the old ones with the plastic sprockets), I have seen the chain in the 4.0 so loose it will grind into the inside of the cover on the 4.0 (makes a...
  10. MudderChuck

    Check engine light?

    The problem, if it is timing, can't really be checked with a timing light. The computer is constantly changing the timing, even at idle. One of the reasons computer controlled vehicles are more efficient. Doubtful the timing chain jumped, I really can't remember a 4.0 chain ever jumping. If...
  11. MudderChuck

    Check engine light?

    Timing light really isn't going to do you much good in the traditional sense. The ECU (computer) controls the timing and you really can't adjust anything. You can hook the timing light up to each individual spark plug cable, shine the light at something dark like the relays cover and see when...
  12. MudderChuck

    Check engine light?

    Good catch LOL, should be hurling through the TB and pooping out the exhaust, bassackwords.
  13. MudderChuck

    Check engine light?

    Ohm test the CPS, usually what screws up. If it just started acting up after the TB cleaning, you may have gotten some solvent on the TPS. Could it be as simple as fouled plugs, after you washed all the junk down into the cylinders? I'm not a big fan of dumping stuff down the TB. All that...
  14. MudderChuck

    Check engine light?

    There are essentially no stored codes in the Renix (87-90). There is a real time code reader available, but they are getting rare. Tell me exactly when it runs rough, cold, hot, idle, 2000 RPM etc. and we may be able to narrow down probable causes. First things to do with most any Renix are an...
  15. MudderChuck

    88' XJ SOA conversion

    I'd walk outside and look at the axle again. Maybe lay down so you don't have look at it upside down. I put a full length add a leaf into my rear spring pack and added a couple of 3/4 inch spacers under my front springs. I still use stock shocks with about an 1 1/2 of lift. Fit 30 X 9.50 tires...
  16. MudderChuck

    Manifold heater?

    I can't see being without the manifold heater, causing much grief, after the motor warms up.
  17. MudderChuck

    Cherokee Problem

    I missed the year in your header (89 I 'm guessing), I have to blame my glasses and old age LOL. If you have a volt meter, I can likely talk you through what I'd do in a similiar situation. I'm pretty good with Renix electrical, (XJ's 87-90). Could be the ignition switch, more likely a fusible...
  18. MudderChuck

    Cherokee Problem

    First thing is the year of your XJ. Second is you'll likely need some sort of volt meter to test anything, they are really not that expensive. I usually use something like this for quick testing, accurate enough, idiot proof. Can be used on automotive or for household stuff. Something with...
  19. MudderChuck

    Quick question about a 4.0

    It's doubtful the flywheel from a pre 91 is compatible. Finding a year motor with the same part number for your 95 CPS may make life a lot easier. But sometimes the only difference in the CPS may be the connection and a new part number. I've noticed a different part number for the flex plate...
  20. MudderChuck

    Plane crashes into IRS building in Austin TX

    I'd say his main problem may have been immaturity. Are you paranoid if something is actually out to get you? The guy may have not been a joiner, if his philosophy jumped all over the place, it may be because he picked his issues individually. I'm surprised it ever made it into the news, guess...
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