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1992 740 Wagon Power Steering Pump Location / IAC Valve 700 1992

posted by  Bart740 on  Sat Feb 22 21:18 CST 2014
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last visit: Sat Feb 22 21:04 CST 2014
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I recently purchased a 1992 740 wagon with 137k. What I believe is the power steering pump is making a faint grinding noise. I checked the fluid level in the reservoir and it was low. Is the power steering pump under the front of the engine. I also have a question about the IAC valve. I have received code 223 which indicates that the IAC valve is faulty. I want to replace it but I don't know if it is a Regina or Bosch model. Can anyone tell me where it is located and maybe which manufacturer. Any and all advice would be very helpful and greatly appreciated.








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    1992 740 Wagon Power Steering Pump Location / IAC Valve 700 1992

    posted by  Mike91 on  Sat Feb 22 23:00 CST 2014
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    last visit: Wed Sep 17 19:52 CST 2014
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    Welcome to the Brickboard. Click on the FAQ heading and you will find lots of excellent diagnostic/repair information.

    Power steering pump is mounted low on the passenger side at the front of the engine.

    Regina systems have a square ignition coil, Bosch is cylindrical. The IAC 223 code means that the electrical connector or wiring to the IAC valve has a problem, or the IAC valve itself has an intermittent internal connection.

    My 1993 940 with Regina fuel injection randomly stalled when coasting. Every time it happened the 223 code appeared. I cleaned the electrical connectors on the wire harness and IAC valve - the problem went away.

    Mike








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      1992 740 Wagon Power Steering Pump Location / IAC Valve 700 1992

      posted by  Bart740 on  Sat Feb 22 23:23 CST 2014
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      Mike91~ Thank you for the information. Can you tell me where the IAC Valve is located on the 1992 740? I also received a code of 132 which I believe has something to do with the battery voltage being to low. The code 231 came up which I believe it has to do with the O2 sensor. I replaced the battery which should have caused the codes to reset, but they have not. I still get the three codes when I do the self test diagnosis. Could all of these issues be related?








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        1992 740 Wagon Power Steering Pump Location / IAC Valve 700 1992

        posted by  james_a_sousa on  Sun Feb 23 20:10 CST 2014
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        last visit: Thu Oct 23 18:51 CST 2014
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        You really need to read the FAQ.

        What makes you think that removing the battery will reset the codes?

        I never had a '92, but I think that you need to reset them at the code box.








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          1992 740 Wagon Power Steering Pump Location / IAC Valve 700 1992

          uid 18083's pic
          posted by  lucid on  Mon Feb 24 08:23 CST 2014
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          last visit: Fri Oct 24 12:31 CST 2014
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          "What makes you think that removing the battery will reset the codes?"

          Maybe he's seen some of Art Benstein's posts on the subject?

          None of the 200/700/900 Fuel nor Ignition controllers have "keep alive" memory. Just pulling the appropriate* fuse will clear OBD codes (easier than battery connections).

          * Underhood 25A Blade fuse for most 240s. Fuse 6 for '92-93 240**.
          Fuse 1 for 700/900.

          ** Some '93 240s have a multi-fuse pack at the Battery + terminal, with which I have no experience.

          --
          Bruce Young, '93 940-NA (current), 240s (one V8), 140s, 122s, since '63.








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            1992 740 Wagon Power Steering Pump Location / IAC Valve 700 1992

            posted by  Chris Mullet on  Mon Feb 24 12:39 CST 2014
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            last visit: Fri Oct 24 09:08 CST 2014
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            Why not just clear the codes via the OBD box as it's made to do?








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              1992 740 Wagon Power Steering Pump Location / IAC Valve 700 1992

              uid 18083's pic
              posted by  lucid on  Mon Feb 24 13:25 CST 2014
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              last visit: Fri Oct 24 12:31 CST 2014
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              "Why not just clear the codes via the OBD box as it's made to do?"

              If I'm under the hood I usually do, Chris. But in this case I was responding to James Sousa's confrontational and IMO less than helpful: "What makes you think...?" post.


              --
              Bruce Young, '93 940-NA (current), 240s (one V8), 140s, 122s, since '63.







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