1991 Oldsmobile Bravada

While driving today at 60 mph, I pressed on the accelerator only to have no power to the wheels. The engine revved up but the wheels were not moving with the engine. After coming to a complete stop, you have to press the gas down as far as it will go and it will gradually get up to 25 mph. All the while the engine is revving very fast, like there is no problem only that is is going a high speed. I do not notice any problem when the truck shifts gears so I do not think it is the transmission and the oil pressure is fine, antifreeze is fine, all belts are fine. I do not know where to even begin to look for the problem.

 

Sounds like your tranny is slipping. Have you checked the tranny fluid level and condition? Fluid should be pink and not smell burnt.

 

Thanks for the reply! After reading it, I just went out and checked the fluid after letting it sit all night, there is plenty of fluid it is up around the hot mark, even though it is cold. As far as the color, I would say it is a medium-browinsh pink. The smell is hard to desribe. I dont know what you mean by burnt, but what it smells like to me is woody, sort of like oak maybe. If it is the trans, can they be fixed or do you just have to get another one? I dont want to be taken to the cleaners by a mechanic!

 

Revving the engine far with the tranny slipping???

Brownish fluid?????

Does not sound good my friend. You might be able to save it by having the fluid flushed and filter changed... but it's VERY hard on them to rev on it while it's slipping.

Worst case scenario: time for a tranny rebuild.

It sounds like this tranny has been neglected if the fluid is burnt and brownish, but i suppose it is possible that the fluid was fine.. Until something broke in the tranny causing you to burn it while trying to get it to go.

After the rebuild, make sure to have it serviced (ie fluid and filter changed) on schedule and it'll last for ever.

 

thanks for all your help! i am going to take your advice about flushing out the fluid and changing the filter. its easier on me to do the inexpensive things rather than having my tranny rebuilt or buying another. also, if anyone knows, i read online something about a tranny pump and that it might be out since its full of fluid it might not be pumping it through and also about a torque converter. it said that these things might also need to be looked at. does anyone know anything about these? Thanks! Also i went to a website that has component locations but couldnt find anything under transmission filter. Where would it be located?

 

It's possible about the pump... but the only problem is that the tranny was pushed while slipping.

So if the pump wasn't providing enough pressure to hold the band(s) tight enough, then the bands were also damaged while slipping.

Your best bet is to do the fluid flush and filter change. If that doesn't help, then if you want a "cheap" fix.... time for a junkyard tranny.

When you push a tranny while it's slipping it really really does damage to it.

A good rule of thumb for automatics.... if they are not going into gear solidly or driving the vehicle then let off the gas. If you push it to try to get home you are frying the tranny.

 

This link should help you with the filter. You can pickup a filter kit at any good auto parts store. It will include the filter and all necessary gaskets and usually an instruction sheet with any particulars.
http://www.cybrrpartspro.com/Chilton...10CH07_19.HTML

Capacity - Automatic Transmission
Spec Category Settings
Transmission (US Pints) 10.0
Engine Oil With Filter (US Quarts) 5.0
Drive Axle - Front (US Pints) 2.6
Drive Axle - Rear (US Pints) 3.8
Fuel Tank (US Gallons) 20.0
Cooling System (US Quarts) 13.5
Transfer Case (US Pints) 5

 

Sounds like a slipping tranny for sure. Do as the others suggested. Failing that, the tranny has to be replaced with a rebuilt one.

Go with a GM marketed rebuilt unit if you are into the truck for the long haul.

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