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'98 V70 Still has Trouble Shifting Out of First V70-XC70

posted by  schwied on  Tue Jun 4 20:13 CST 2013
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last visit: Sun Jun 16 13:12 CST 2013
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My '98 V70 base model with automatic (200K miles) has been having trouble shifting out of first for the last couple of months. This occurs when it's cold, but after a few minutes, it works normally. (Oddly, even when it's warmed up, when I shut the car off for a few minutes, like to run inside a store, it takes a few minutes to begin shifting normally when I start it again).

Mechanic told me the transmission mode switch was throwing a code, but that was the only code showing.

I unplugged the transmission mode switch, this did not solve the shifting problem.

I did a full fluid flush (first one done on this car, caused no problems) but this did not solve the shifting problem. Fluid level is "full".

I replaced the PNP switch, but this did not solve the shifting problem.

At this point, I'm thinking it's either the transmission mode switch or maybe a sticky solenoid. Don't have JY access, and would prefer not to pay Mother Volvo $95 for a mode switch. Thinking maybe it's a good time to take it to a tranny shop to get it checked out.

Any ideas?

Schwied







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    '98 V70 Still has Trouble Shifting Out of First V70-XC70

    posted by  KlausC on  Wed Jun 5 11:54 CST 2013
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    last visit: Fri Oct 24 10:15 CST 2014
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    Ask the mechanic if the code for the mode switch came back, this could have been a one time occurance and left over from who knows when.

    I would bet on a sticky solenoid. Give your tranny flush time to work, it takes a while to disolve the gunk that was in there.

    Does the tranny shift to 3rd and 4th normally? 1st to 2nd does take a lot of pressure and a cold tranny will take a while. Check the ATF level immediately after cold start and check the fluid - it must be at the full mark (cold). A hot reading can sometime be skewed to over full if the ATF is very hot.







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      '98 V70 Still has Trouble Shifting Out of First V70-XC70

      posted by  schwied on  Fri Jun 7 20:53 CST 2013
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      last visit: Sun Jun 16 13:12 CST 2013
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      Is there any kind/brand of transmission cleaning additive you would recommend Klaus?








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        '98 V70 Still has Trouble Shifting Out of First V70-XC70

        posted by  jwalker on  Sat Jun 8 05:44 CST 2013
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        last visit: Fri Jun 6 08:39 CST 2014
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        Consider Auto-Rx. Did a nice job cleaning the engine in my 95 855. Stopped a minor camshaft leak too.

        Although I've never used it in a tranny, it did help a guy on the RWD board when his AW70 was acting up in his 240.

        http://www.auto-rx.com/transmissions.shtml








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        '98 V70 Still has Trouble Shifting Out of First V70-XC70

        posted by  KlausC on  Fri Jun 7 21:05 CST 2013
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        last visit: Fri Oct 24 10:15 CST 2014
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        You are at last resorts, the AT shops charge a lot, so any good brand snake oil is worth a shot. Which brand is up to you, none of them will hurt your tranny. Just make sure it is not a stop leak, a cleaner only. It must work with DEX/MERC fluids and most are formulated that way. Read the fine print and ask the counter guys at the autoparts store if it really works.







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      '98 V70 Still has Trouble Shifting Out of First V70-XC70

      posted by  schwied on  Thu Jun 6 00:06 CST 2013
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      last visit: Sun Jun 16 13:12 CST 2013
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      Hi Klaus,

      Yes, the tranny shifts into 3rd and 4th normally. Sometimes it shifts from first to second OK, but only for an instant, then it seems like it can't stay in second, and it goes back to first and over-revs.

      It's been over a month since I flushed the tranny fluid, so I would guess that it's not going to improve much more.

      Interesting that you mention the pressure, I was thinking about that too. Maybe there is a pressure drop in an older tranny, from a worn pump or leaky seals, and that is doing it? Not sure.

      Maybe time to find a good tranny shop,

      Dave S.







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