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If your 1988 Gran Prix will pull in 1st and 2nd but not in reverse drive or over-drive is this some simple to fix or will you need a new transmission?


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2009-08-19 13:36:52
2009-08-19 13:36:52

Your automatic clutches inside the transmission is failing. You will need to have the transmission rebuilt, or just replace it with a new one. That decision will be left up to you.


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Tom here, my 1996 jimmy 4 4wheel drive has no 2nd, reverse or overdrive?

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you have burnt out the 3rd. gear and overdrive. you will have to have it rebuilt or replaced.

Overdrive ON is the normal position But if you are towing something or driving in hilly country where the transmission is constantly shifting from overdrive to drive , then you want to switch the overdrive off

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your transmission needs repaired

Mainly because the C6 transmission only has 3 gears and no overdrive.

It could be as simple as a slight imperfection in one of the gears or it could be an indication that the drive shaft or "half shaft" is worn.

It means the reverse clutch pack has gone out in your transmission and needs to be rebuilt or replaced.

This could indicate a simple problem with the vacuum shift modulator or a major failure with the transmission. You will probably need to get it to a mechanic or a shop to get it properly diagnosed.

The clutch (transmission release) is likely malfunctioning, then simple momentum will allow the transmission to jump gears. For standard transmission, check the clutch plate. For automatic transmissions, there is a misalignment caused by wear or failure.

On a 1999 Mercury Cougar : Overdrive is the normally allowed position ( it won't shift into overdrive until the speed is faster anyway ) If you find that the transmission is frequently shifting between overdrive and drive ( such as hilly roads ) then it is best to use the transaxle ( transmission ) control switch on the side of your gear shifter to shut off the overdrive ( O/D OFF will appear in your gauge cluster )

why does the 1991 Lincoln towncars transmission not have overdrive?Instead of going into overdrive it seems to go into neutral.But if you take it out of overdrive and leave it in drive it never goes into neutral while I'm driving.

One of the reasons a transmission might not shift into overdrive could be a problem with the belt drive inside the transmission. Belt drives can be stretched over time. Another reason could be that the transmission fluid is low or very old or the filter is clogged.

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