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09-17-2009, 09:15 PM
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#1 | |
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AF Newbie
Join Date: Jun 2009
Location: peoria, Illinois
Posts: 21
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won't shift into overdrive
My 95 Lumina with 199,000 miles on it will not always shift into overdrive. It seems to do it more when its first started for the day. I have changed trans fluid and filter regularly so I don't think its that. If is not shifting into overdrive, I have to stop the car , shut it off, then restart and it will then shift. Anyone else have this problem.
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09-18-2009, 06:28 AM
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#2 | |
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A990 racer
 Join Date: Mar 2002
Location: Chestertown, New York
Posts: 16,953
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Re: won't shift into overdrive
This can be a shift solenoid issue or an internal problem, get is scanned by a trans shop for a proper diagnosis.
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09-20-2009, 12:29 AM
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#3 | |
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AF Regular
Join Date: Jan 2008
Location: Republic, Washington
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Re: won't shift into overdrive
Which trans. does it have in it?
__________________
 Bearwulf, the "howling Grizzly" of the north.MONOTONY is the worst driving hazard, so SHUT-UP when I'm driving. 97-Lumina LS 1891Argentine 7.65 with scope! |
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09-20-2009, 06:58 PM
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#4 | |
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A990 racer
Join Date: Mar 2002
Location: Chestertown, New York
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Re: won't shift into overdrive
Should be a 4t60e.
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09-21-2009, 05:26 PM
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#5 | |
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AF Newbie
Thread starter
Join Date: Jun 2009
Location: peoria, Illinois
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Re: won't shift into overdrive
yes it is a 4t60e. Shifts into OD 95 percent of the time. If you run it around alittle before going on the road it seems fine. Its when you hit the road immediately.
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09-21-2009, 06:45 PM
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#6 | |
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A990 racer
Join Date: Mar 2002
Location: Chestertown, New York
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Re: won't shift into overdrive
Until the temps reach a preset limit it will not see o/d, pcm programming.
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09-25-2009, 01:53 PM
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#7 | |
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AF Newbie
Thread starter
Join Date: Jun 2009
Location: peoria, Illinois
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Re: won't shift into overdrive
If it doesn't shift into OD, it never will. The only way to make it shift is to stop, shut it off, restart, then it will be fine. Crazy I know.
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09-25-2009, 06:32 PM
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#8 | |
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A990 racer
Join Date: Mar 2002
Location: Chestertown, New York
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Re: won't shift into overdrive
A trans function scanner in the hands of a trans tech can look at internal solenoid operation and pcm commands to see what the issue may be.
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02-16-2010, 08:13 PM
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#9 | |
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AF Newbie
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Location: peoria, Illinois
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Re: won't shift into overdrive
Apparently something was just loose behind the engine. I recently changed the rear exhaust manifold and no more "no shifting into overdrive"
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12-19-2016, 06:54 PM
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#10 | ||
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AF Newbie
Join Date: Apr 2010
Location: Hudson, Colorado
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Re: won't shift into overdrive
Quote:
I know what Gene mean's. I have the same problem with my 95. I kick it in neutral, coast and turn the key off for 10 second's and fire it back up and there is overdrive. Just had the tran's rebuilt after my no lock up and blew the front seal out problem i previously posted. Talked to the builder and a new solenoid pack was installed and i even installed another body control module and i still have the problem. |
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12-20-2016, 02:14 AM
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#11 | ||
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AF Enthusiast
Join Date: Jul 2005
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Re: won't shift into overdrive
Quote:
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12-26-2016, 08:26 AM
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#12 | |
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AF Fanatic
Join Date: Oct 2007
Location: EVERETT, Massachusetts
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Re: won't shift into overdrive
I would not use that tranny tech again.
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