1998 S70 GLT Transmission not shifting

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dacts59
Posts: 3
Joined: Mon Apr 19, 2010 3:45 am
Year and Model: 1998 S70 GLT Sedan4D
Location: Marysville, WA

1998 S70 GLT Transmission not shifting

Postby dacts59 » Mon Apr 19, 2010 4:19 am

The car goes forward but only stays in gear about ten minutes then it will not shift gears anymore, I can not get it to go in reverse at all. I did take about 3 quarts of extra transmission fluid out (courteous of previous owner). Would a transmission flush help? Is there electronics in the transmission that may be causing the problem? I do get the arrow indicator light, when the transmission stops going into any gear. Once engine has cooled it will then work again in forward gears but still no reverse.

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jblackburn
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Posts: 13906
Joined: Sun Jun 08, 2008 9:54 pm
Year and Model: 1998 S70 T5
Location: Alexandria, VA
Flag: United States of America

Re: 1998 S70 GLT Transmission not shifting

Postby jblackburn » Mon Apr 19, 2010 4:27 am

:( I think it's dead. Usually no reverse is a pretty bad sign.

Nonetheless, try a transmission flush. Pump all the fluid out from the top radiator line until you get air bubbles, then refill about 3 qts or so, and re-check the level.

If the fluid is horribly discolored, go through the whole flush procedure with 12 qts or so of fluid - search the site here for 'transmission flush' for a how-to.
'98 S70 T5
2012 Chevy Cruze LT 6MT


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!

BigRed
Posts: 190
Joined: Sun Apr 18, 2010 1:10 pm
Year and Model: V70R 1998
Location: Pittsburgh

Re: 1998 S70 GLT Transmission not shifting

Postby BigRed » Mon Apr 19, 2010 11:43 am

You said you are getting the up arrow, I assume it's blinking? Is the MIL also on? Can you read the codes or get it to an AutoZone/Advance Auto Parts to get the codes read?

dacts59
Posts: 3
Joined: Mon Apr 19, 2010 3:45 am
Year and Model: 1998 S70 GLT Sedan4D
Location: Marysville, WA

Re: 1998 S70 GLT Transmission not shifting

Postby dacts59 » Tue Apr 20, 2010 9:27 pm

Havn't read codes yet, will take me a couple of day to get it down to Auto Zone .

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jblackburn
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Posts: 13906
Joined: Sun Jun 08, 2008 9:54 pm
Year and Model: 1998 S70 T5
Location: Alexandria, VA
Flag: United States of America

Re: 1998 S70 GLT Transmission not shifting

Postby jblackburn » Tue Apr 20, 2010 10:05 pm

Do the reverse lights come on when the gearshift is put in reverse?

I suppose it COULD be the PNP switch, but it should be going into limp mode (3rd gear) instead of not forward at all.

There is a small filter at the pump pickup that is un-replaceable; it sounds like either this is clogged or the valve body solenoid is dead (also un-replaceable) without removing the transmission from the car.

Un-replaceable, is that a word? Hmm...
'98 S70 T5
2012 Chevy Cruze LT 6MT


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!

dacts59
Posts: 3
Joined: Mon Apr 19, 2010 3:45 am
Year and Model: 1998 S70 GLT Sedan4D
Location: Marysville, WA

Re: 1998 S70 GLT Transmission not shifting

Postby dacts59 » Thu May 13, 2010 2:24 pm

The Transmission flush did help, but still will not go into reverse, I agree with the solenoid diagnostics and small filter at pump should be check and repaired. Now looking for a Transmission shop that would not take me for all my money, any body have a good est price of this transmission repair should cost? Attempt to do it myself, but need to complete building my shop first a 22x 30 dream.


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