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Transmission Slipping 850 1994

posted by  someone claiming to be LarryB on  Tue Sep 20 09:15 CST 2005 [RELATED]

I noticed that when the car was started in the morning for the first time, the transmission would not shift out of first gear automatically. I live in San Francisco, so we are not talking about really cold weather. I did a transmission flush a 3-4 months ago, but it did not change. This weekend I checked the fluid (cold) and found it overfilled, but I did not have time to drain it. Last night I got about five blocks, the check engine light came on, and the upshift arrow started blinking. The transmission was slipping in all but the manually shifted first gear.

I'll check the error codes tonight, but does anyone have any leads and potential costs. A websearch on another forum hinted it might be a switch under the batter. The car has about 85,000 miles - I don't drive it much.

Thanks








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    Transmission Slipping 850 1994

    posted by  someone claiming to be ksg on  Wed Sep 21 03:06 CST 2005 [RELATED]

    Every car and situation is different but these comments might help.

    If your reading of the codes indicates the PNP switch there is no real choice. On my car I had this done by an independent for about $250 about 3 years ago. After inspecting the job and looking at the instructions on Bay13 I decided if needed again I could do it myself. The gearbox at first acted up only on a few very cold days in winter. A year later it got to acting up on days that were not very cold. On inspecting the old switch the contact tracks were very badly worn.

    If you don't know what code is set you should find out. I got all the same symptoms as you have a few days after replacing my evaporator because I had not reconnected one of the harness connectors under the dash securely. The codes set all indicated mode selector switch failure (open or short circuit). Securing the connector cured the problem.








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    Transmission Slipping 850 1994

    posted by  riley3d on  Tue Sep 20 11:57 CST 2005
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    I bet is just in limp mode, not slipping. When it gets cold my pnp acts up to, the 40's will do it at night.

    Row... row... the shifter then see what it does.








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      Transmission Slipping 850 1994

      posted by  MadeInJapan on  Tue Sep 20 14:57 CST 2005
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Sat Oct 2 06:34 CST 2010
      [RELATED]

      Row it 15-20 times
      --
      1998 S70 T5 Emarald Green Metallic, 2004 V70 2.5T Ruby Red, Previous Owner of Black '94 850 Turbo Wagon








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        Transmission Slipping 850 1994

        posted by  Lbadiner on  Tue Sep 20 15:37 CST 2005
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        So if I row it 15-20 tiems and I get it working, can I do any damage by continuing to drive it? In other words, can I put off this $400 job? Both my regular mechanic and another local agreed that it was the PNP switch and that it is not a DIY project.

        Thanks!








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          Transmission Slipping 850 1994

          posted by  MadeInJapan on  Wed Sep 21 13:03 CST 2005
          Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
          last visit: Sat Oct 2 06:34 CST 2010
          [RELATED]

          You can put it off but eventually it will probably act up again and annoy the hell out of you to the point that you'll want the switch replaced. If you're successful, save your money for the repair while it's still temporarily working.
          --
          1998 S70 T5 Emarald Green Metallic, 2004 V70 2.5T Ruby Red, Previous Owner of Black '94 850 Turbo Wagon








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            Transmission Slipping 850 1994

            posted by  someone claiming to be Bobk528 on  Wed Sep 21 16:12 CST 2005 [RELATED]

            On my 1995 850 GLT, the PNP switch was replaced by a Volvo dealer at a cost of $370 when it only had 67,110 miles. It is well known that the PNP are commonly replaced on 850s. At 107,000 miles, I had severe slippage problems and the dealer recommended that I replace the transmission, which was estimated to cost about $3,700. 850s do not have mechanical transmission problems and after reading Brickboard, I took my 850 to an independent Volvo repair shop. The mechanic replaced the transmission solenoid and wiring harness and flushed the tranny for a total repair bill of $1,036. Today, the car has over 132,000 and runs nicely.








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              Transmission Slipping 850 1994

              posted by  someone claiming to be Aaron on  Thu Sep 22 15:16 CST 2005 [RELATED]

              Where is the solenoid located at? I replace my PNP switch myself about 2 years ago. Now it stays in neutral for a few seconds and engages to gear from stop when it gets hot. Like delay before moving when step on gas.
              95 854T 185k miles








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                Transmission Slipping 850 1994

                posted by  someone claiming to be Bobk528 on  Thu Sep 22 15:43 CST 2005 [RELATED]

                If you do a Search under "transmission solenoid", you'll find some additional information. In one thread a user directed a person to: http://www.babcox.com/editorial/ic/ic40238.htm







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