94 Caravan Mount Replacement doesn't fit. Need help!

Discussion in 'General Motoring' started by Kelly, Sep 26, 2004.

  1. Kelly

    Kelly Guest

    I was very proud that I managed to pull the old Front Right Engine
    Mount out of my 94 Grand Caravan 3.3, when I realized that the
    replacement mount, similar in all respects, had a smaller bolt hole
    through the metal composite within the rubber. I have now gone to 4
    different auto parts stores and all of the after market mounts have
    the same smaller bolt hole. Currently I'm stuck with the engine on a
    jack until I can figure out what to do.

    My guess is that my Caravan was built at a different plant or
    something, and that perhaps they ran out of a part and used something
    differnt? I heard somewhere that Mitsubishi was producing some
    Caravans back then too.

    I can't use a smaller bolt as the nut is part of the bracket. It looks
    like I could drill out a millimeter or two and be fine, but I'm not
    sure if this is safe? The hole is in a diamond shaped piece of metal
    or composite within the rubber, and my guess is that it would be safe,
    but as I'm not sure it is worth the risk.

    Please let me know your thoughts and if you have ever come across this
    before? I can call the dealer on Monday but I'd like to be driving to
    work by then! Thanks.
     
    Kelly, Sep 26, 2004
    #1
    1. Advertisements

  2. Kelly

    Dave S Guest

    The only Mitsubishi was vans that had the 3.0 V6 but that was only the
    engine, the mounts and everything else were Chrysler. Ya might have to get
    the mount from a dealer to make sure you get the correct one.
     
    Dave S, Sep 26, 2004
    #2
    1. Advertisements

  3. Quite likely they're all manufactured by just one company.
    My guess is you've got the wrong mount.
    It's amazing the claptrap you can hear if you don't filter for source.
    Mitsubishi made the 3.0 litre V6 that was used in a great many Caravans,
    but that's it. Chrysler made everything else, including the engine mounts,
    and in the case of your 3.3, that's a Chrysler-made engine.
    ....so you'll have to go get the correct mount...

    DS
     
    Daniel J. Stern, Sep 26, 2004
    #3
  4. I've never come across this in an engine mount but I've often come across
    stuff like this in aftermarket parts.

    Most recent was fuel pump in my 84 Chevy Celebrity. The aftermarket
    pump had an inlet that was turned about 3 degrees different than the
    factory-supplied
    pump. Normally nothing big for a fuel pump except that it's all steel lines
    going
    to the pump, and I did not feel like trying to bend one of them to get it to
    fit. I went to 3 different auto parts places, all of them had the identical
    pump.
    So I gave up and bent the fuel line slightly to get it to fit. It did make
    it much
    harder to get the fuel lines started without cross threading them, but I
    just worked
    very slowly, carefully and gently, worked them around and eventually got
    them
    in without ruining them.

    In your case if the new and old mount were _identical_ (not just 'similar',
    there's
    a difference) except for the size of the hole, I'd drill it. Most likely,
    Chrysler
    used the larger bolt for a number of years then for some reason changed the
    spec to a smaller bolt but did not change the mount. The person who
    designed
    the aftermarket part probably didn't see the actual mount, and was going off
    the
    bolt size of a later model when putting in the holes. It is probably likely
    that this
    kind of scenario comes up so seldom (I cannot think of many people bothering
    to
    check for broken engine mounts in a 10 year old van) that when it does the
    people
    just drill it and forget about it.

    It is frustrating when you run into this kind of thing in the aftermarket,
    but aftermarket
    parts are cheaper for a reason.

    Ted
     
    Ted Mittelstaedt, Sep 26, 2004
    #4
  5. Kelly

    Hank Guest

    different auto parts stores and all of the after market mounts have
    Will fit has now become will ALMOST fit.

    I had the same problem with a radiator. The cap wouln't even tighten all the
    way.
    All three stores buy from the same will ALMOST fit vendors.
     
    Hank, Sep 27, 2004
    #5
  6. Kelly

    Kelly Guest

    Thanks for the follow-ups people. This has been a learning experience!
    The dealer had one for 3X the cost but it also included the bracket
    and bolt. To remove the current bracket would have been beyond me as
    it is bolted from the underside. So I separated the new one from the
    mount, (which had the right size hole), and put it all back together.

    The van has not been running right and the engine shakes at times.
    That old mount was letting it shake violently, especially in reverse,
    and though is had not split, it had cracks all over the place and
    generally looked tired. The new mount is defiantly calming things
    down.

    I hear a tiny bit of a rattle that sounds like a couple valve/piston
    things aren't firing right, but I don't know much of anything. I have
    just gone step by step; new plugs, wires, coil, pcv valve(or whatever
    it is). I'm not sure what to do next. It's a nice van with only 85,000
    miles on it so it is definitely worth the effort. All the comforts;
    interior, stereo, electric widows, etc. are in good condition, and up
    till a month or two ago the engine was humming great too.
     
    Kelly, Sep 27, 2004
    #6
  7. Kelly

    Bill Putney Guest

    A WAG: dirty injector(s) causing an imbalance.

    Bill Putney
    (To reply by e-mail, replace the last letter of the alphabet in my
    adddress with the letter 'x')
     
    Bill Putney, Sep 27, 2004
    #7
  8. Kelly

    Kelly Guest

    Think I ought to drop in a little Chevron Techron or something?
     
    Kelly, Sep 28, 2004
    #8
  9. Kelly

    nobody Guest

    I had lots of problems with shake with a 94 GC while driving. It
    would mimic a wheel balance problem. To be brief, after many and
    costly consultations with people who should have known the answer, I
    traced it myself to the engine being off center. Under certain
    driving conditions this can cause binding (and wear) in the in the
    front axle shafts as they rotate which is manifested as a shake or
    wobble in the front end. Changing the engine mount or mounts can
    affect engine centering, as can changing the front axle shafts. Ageing
    of the mounts can do it to, in my opinion. Mine had sagged badly, and
    I changed all three.

    I have the service manual for theGC, and you can forget the centering
    procedure given in that manual. It can be done in your driveway using
    a technique of measuring the projections of the two front axle shafts
    beyond the rotor hubs. It should be the same on both sides. The
    major difficulty in doing this is removing the big hub nut so you can
    make the measurements. I borrowed the big socket from AutoZone. The
    nut is very tight.

    If the projections are not the same, jack up the engine and loosen
    all three engine mounts where they attach to the frame, pry the engine
    right or left as needed to equalize the axle projections (half the
    difference of the two projections) making sure the mounts move with
    the engine, and then tighten the mounts. Put it all back together,
    drive it a bit, and recheck the measurements. You can find additional
    (more detailed) info on this procedure with a dilligent internet
    search.

    Good luck!
     
    nobody, Sep 28, 2004
    #9
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.