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Practice what you preach...Radiator Reaplecement 900 1993

posted by  Onkel Udo II on  Sat Aug 10 03:45 CST 2013
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last visit: Fri Oct 24 08:50 CST 2014
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I am the guy who tells all the newbies to replace their radiator if thy have an automatic 2/7/9 with an original radiator to avoid the heartache of loosing a transmission to save a good $150. I do not always practice what I preach...and I got lucky this time.

Our roommate was using my shiny 940 wagon to pick up some stuff from storage to move it into his new house. He calls me from the storage unit that the radiator was blowing steam but the temp never rose on the temp gauge. I have a cracked radiator and in the 22 miles the car had driven since my last fill-up, I had lost a gallon of coolant.

This crack is a different place than I am used to...not hear either of the hose necks. It is on the drivers side, in front, dead middle of the tank.

Weirdly, in the 12 mile drive home, it did not loose a drop of coolant.

I have new Volvo hoses (including heater hoses), a heater control valve and a Nissen's on the way. I slightly overpaid for the radiator and had to pay shipping plus I have to set aside chunk of my time on a VERY busy weekend...all because I did not take care of this preemptively at my leisure. If it were my only car, I would be sweating every drive to work or back. When those cracks open up...it is not pretty.

If it is original, replace your radiator.








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    Practice what you preach...Radiator Reaplecement 900 1993

    posted by  Onkel Udo II on  Sat Aug 17 04:34 CST 2013
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    last visit: Fri Oct 24 08:50 CST 2014
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    Wow...was I tempting fate! That radiator was a ticking time-bomb.

    First, removal of the radiator on the 940 has about 0 similarities with all the 240's I have worked on except for the removing of the hoses and tranny cooler lines. EVERYthing else is different.

    When removing the little 1/4" hose from the radiator the nipple popped right off. The clamp was removed and I had not even given it a twist. This radiator had done a few thousand too many heat cycles.

    What I thought was a crack in the driver side front of the tank was actually a leaking tank to core seal. It had been steaming for a while as there was a build-up of green crustys.

    The heater hoses and heater control valve went well but the flame trap holder had the same issue at the radiator...probably original and the nipple broke off when attempting to remove the vac line. The old heater control valve was mostly metal but I swapped it out anyway.

    I will be honest, I lost track of which hose goes on top to the heater core connection and which goes on the bottom. Hope I got it right and if not, hope someone can tell me which way it goes.








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    Practice what you preach...Radiator Reaplecement 900 1993

    uid 49372's pic
    posted by  740_dan on  Tue Aug 13 12:56 CST 2013
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    last visit: Thu Aug 28 13:10 CST 2014
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    Thanks for sharing. Bright side: Seems very Volvo that the broken radiator still allowed driver to get home without major engine damage.
    --
    I own a Volvo or Does Volvo Own Me? Try the easy to search Expanded Style FAQ Index http://40mph.com/Brickboard_700-900_FAQ_Expanded_Index_Version/








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      Practice what you preach...Radiator Reaplecement 900 1993

      posted by  Onkel Udo II on  Tue Aug 13 13:28 CST 2013
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      last visit: Fri Oct 24 08:50 CST 2014
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      ...and fully loaded with about half the guys (non-appliance) worldy belonging in or on the car!

      I have yet to have a Volvo leave me stranded except in the case of a neglected failing wiring harness. Part of it is the 40# of tools and spares I tend to carry. Part is the "predictable" failure items because of the collective knowledge of this board. most is blind dumb luck.








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    Practice what you preach...Radiator Reaplecement 900 1993

    uid 27's pic
    posted by  Art Benstein on  Sat Aug 10 04:01 CST 2013
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    last visit: Fri Oct 17 20:10 CST 2014
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    Did yours have that 7/9 style high pressure setting? Green cap, I believe?





    Instead of replacing every old radiator we have, I just keep a spare. I know, that doesn't work for everyone.
    --
    Art Benstein near Baltimore

    A man rushed into a busy doctor's office and shouted, "Doctor! I think I'm shrinking!" The doctor calmly responded, "Now, settle down. You'll just have to be a little patient."








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      Practice what you preach...Radiator Reaplecement 900 1993

      posted by  Rene on  Sun Aug 25 11:57 CST 2013
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      last visit: Thu Oct 23 19:43 CST 2014
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      Works for me too.Have never had catastrophic Failure only small leaks.But my cars are all manuals except one and I gave it a
      new rad premptively
      --
      Rene








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      Practice what you preach...Radiator Reaplecement 900 1993

      posted by  jd620 on  Sun Aug 25 10:09 CST 2013
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      last visit: Fri Oct 17 07:42 CST 2014
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      We have 8 running 740s and 940s all with low coolant switches in the coolant reservoir tank. The first thing I do is replace the coolant reservoir with one having the low coolant switch and running a wire to the instrument panel. The instrument panel indicator for all the 940s is already in the panel and just needs a wire, ground wire, and connector. I used the parking lamp for the 740 since the parking brake is never used on that car. I started adding these low coolant switches after an 89 740 had it's first indication of low coolant when the "check engine" light came on and then my daughter saw that the temp. gauge was pegged, then the heater core blew anti-freeze all over the interior and the head gasket went. That car went to the crusher.
      The faqs tells how to install the tank with the sensor.
      --
      Mine: 4-940s running, 2-740 and 1-940 parts cars, and 3 John Deere 630s, dtr1:3-940s, dtr2:1-740








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        Practice what you preach...Radiator Reaplecement 900 1993

        posted by  Onkel Udo II on  Mon Aug 26 03:28 CST 2013
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        last visit: Fri Oct 24 08:50 CST 2014
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        I like the idea but it still does not help with the all too common failure of the transmission cooler. That means it eliminates 50% of the mechanical issues that can send these cars to the boneyard with a failure to replace an aging radiator.








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          Practice what you preach...Radiator Reaplecement 900 1993

          posted by  jd620 on  Mon Aug 26 06:33 CST 2013
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          last visit: Fri Oct 17 07:42 CST 2014
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          You're right, I have a 93 940 with a failing transmission due to a leaky cooler. I usually replace the radiator in these cars when I get them. Too bad there isn't an anti-freeze in oil sensor.
          --
          Mine: 4-940s running, 2-740 and 1-940 parts cars, and 3 John Deere 630s, dtr1:3-940s, dtr2:1-740








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      Practice what you preach...Radiator Reaplecement 900 1993

      posted by  Onkel Udo II on  Sun Aug 11 06:59 CST 2013
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      last visit: Fri Oct 24 08:50 CST 2014
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      Actually the cap on this one is gray...never seen it before and I failed to read the top to see manufacturer or spec.

      I am ashamed to admit that I pressed this car into services without even doing a throttle body cleaning. Changed all the fluids, tranny flush, checked the safety related suspension and brake-related items...then just started driving.








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        Practice what you preach...Radiator Reaplecement 900 1993

        uid 27's pic
        posted by  Art Benstein on  Mon Aug 12 05:23 CST 2013
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        last visit: Fri Oct 17 20:10 CST 2014
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        I'd guess you have nothing to be ashamed about. What other car could you put on the road as quickly?



        --
        Art Benstein near Baltimore

        A grenade thrown into a kitchen in France would result in Linoleum Blownapart.








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          Practice what you preach...Radiator Reaplecement 900 1993

          posted by  Onkel Udo II on  Mon Aug 12 05:32 CST 2013
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          last visit: Fri Oct 24 08:50 CST 2014
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          Oh, I can put a lot of cars into service that fast but the old red-block volvo is the only one I trust not to leave me stranded. Instead, it left our roomate stranded and I had to leave work early to rescue him.







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