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07-10-2013, 12:03 PM
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#1 | |
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AF Regular
Join Date: Oct 2008
Location: Germany
Posts: 303
Thanks: 9
Thanked 1 Time in 1 Post
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91 PA sometimes stays in 3rd gear
The transmission doesn't seem to shift back properly every now and then.
The problem can be recreated by driving 70mph and then At ±25 mph the 'check engine' light flashes. When stopped the engine because it is in 3rd gear! This was confirmed by accelerating slowly, at this point the RPM stays at about 3000 and it doesn't shift gears all the way to about 55 miles when it goes into 4th. I think it might be electrical because when it is stuck in 3rd, until now I turn the engine off and on it is no longer stuck. Changing gears doesn't do anything except the engine obviously gives full power in reverse. What could it be? Last edited by maxwedge; 07-10-2013 at 08:29 PM. |
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07-10-2013, 04:32 PM
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#2 | |
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AF Fanatic
Join Date: Jul 2011
Location: Worcester, Massachusetts
Posts: 5,017
Thanks: 70
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Re: 91 PA sometimes stays in 3rd gear
Are you related to my service writer?
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07-10-2013, 05:47 PM
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#3 | |
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AF Regular
Thread starter
Join Date: Oct 2008
Location: Germany
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Re: 91 PA sometimes stays in 3rd gear
Probably not. Well maybe. ;-) I see all kind of colors and styles in my text that I didn't put there, and can't edit out..
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07-10-2013, 10:07 PM
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#4 | |
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AF Fanatic
Join Date: Jul 2011
Location: Worcester, Massachusetts
Posts: 5,017
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Thanked 618 Times in 610 Posts
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Re: 91 PA sometimes stays in 3rd gear
The transmission doesn't seem to shift back properly every now and then.
Not exactly sure what your problem is.... The problem can be recreated by driving 70mph and then At ±25 mph the 'check engine' light flashes. When stopped the engine because it is in 3rd gear! Not sure what you mean by 70 mph and +/- 25.......when a check engine light flashes, that means you have a bad misfire, not a transmission problem.... This was confirmed by accelerating slowly, at this point the RPM stays at about 3000 and it doesn't shift gears all the way to about 55 miles when it goes into 4th. 3000 rpms is not accelerating slowly.........Your tranny has a vac modulator that controls shifts.....check your vac line, especially for the presence of tranny fluid.... I think it might be electrical because when it is stuck in 3rd, until now I turn the engine off and on it is no longer stuck. Changing gears doesn't do anything except the engine obviously gives full power in reverse. What could it be? This is hydraulic, not electrical shifting......put in "1"......get rpms to 2500.....then shift to "2"...does it shift? at 2500 rpms, now "3".....does it shift? Now get it to 2500 rpms and shift to "D".....does it shift? Do rpms drop when TCC engages? What is the condition of the tranny fluid? Level? Could be a number of things, causing a delayed shift to 4th...... |
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