1995 bonneville Transmision Problem - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-22-2014, 03:18 PM   #1
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Default 1995 bonneville Transmision Problem

I bought this car yesterday and the man I bought it from told me it had a bad neutral safety switch.... I replaced that and it was not the problem....
The problem I am having is it will not shift into gear, forward or reverse.
The linkage is working and moving like it should... When I put it into gear it revs like it would if I had my foot on the brake and was giving it gas...
If I move the car back and forth then sometimes it will go into gear sometimes not. If I do get it into gear then if I shift into reverse it locks back up...
Please help I am lost here.
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Old 03-22-2014, 04:19 PM   #2
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If it has fluid and the linkage is working you have a internal transmission problem.
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Old 03-23-2014, 02:08 PM   #3
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Agreed, the neutral safety switch only prevents the starter from engaging in anything other than park or neutral. It has no bearing on whether or not the transmission actually engages.

If the linkage is working correctly, you have verified this, and there is enough fluid in the tranny, you have an internal issue. It sounds like you bought someone elses problems, and were fed a bogus story just to dump the car.

If the problem is internal, you may be able to bring it back with fluid and filter change, but I would be cautious of the vehicle from here on, until we have a better idea what else is wrong with it.
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Old 03-23-2014, 11:09 PM   #4
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Could this be a shift lock solenoid? Or is it likely to be something worse than that?
Tomorrow I am going to try to change the fluid and filter see what I get but my nest step would be to do the solenoid....
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Old 03-23-2014, 11:57 PM   #5
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The shift lock solenoid only prevents the car from being shifted from park by a mechanism that locks the shift linkage. Mine stuck on me previously, and the complaint was that the car would not allow me to physically move the gear selector out of park. It is my understanding that you can move the gear selector freely, however no gears engage as they should.

My solution was to tap the solenoid with the ignition off until it cut the linkage loose, and then unplug it. No trouble since.

Am I correct in my understanding? Can you physically select any gear with the shifter, however the car does not move? If you do shift, does the transmission act as if it engages, but the vehicle does not move? Does the car simply act as if it is still in neutral once you pull it out of park, freely revving but not moving about? Does the park aspect disengage when the car comes out of park, allowing the car to freely roll if influenced by an outside source?
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Old 03-24-2014, 04:35 PM   #6
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Yes, I can put it in any gear. no the car does not move.
It does not act like it is in neutral because although I can move it back and forth just a couple inches and sometimes it will pop into gear. When I put it in neutral then yes I can move it freely but when it is in gear it clicks like it is in gear and when I give it gas then it will not move but revs like it would if you put it in gear and held the brake down. In neutral it revs freely still.
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Old 03-24-2014, 04:38 PM   #7
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I asked about the shift lock solenoid because the man I bought it from said that it could be thats the problem. He also told me when I bought it that it was the neutral safety switch. So even though the guy runs and owns a shop I do not think he knows what he is talking about.
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Old 03-24-2014, 04:59 PM   #8
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Originally Posted by jaf1231 View Post
I asked about the shift lock solenoid because the man I bought it from said that it could be thats the problem. He also told me when I bought it that it was the neutral safety switch. So even though the guy runs and owns a shop I do not think he knows what he is talking about.
Yeah I wouldn't take anything to that guy if he has a shop. You have a bad transmission no way around it. If you can shift from park, it has fluid and the torque converter is connected to the engine the problem is in the transmission and it needs to be removed and repaired or rebuilt. It sounds like you got lied to and a broken car dumped on you. Sorry man.
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Old 03-24-2014, 06:37 PM   #9
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ok thank you for the help
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Old 03-24-2014, 07:56 PM   #10
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It sounds like maybe an issue with the actual park sprawl (name), but even so, it is internal to the transmission and usually not an easy fix. Sorry you got dumped on, hopefully the deal can be undone.
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