Best Answer

If it's leaking from the pan gasket, just replace the pan gasket. If it's leaking between the engine and transmission, you have probably developed a leaking front seal. There isn't really much you can do for that except to replace the seal. Drop the trans, slide the torque converter out, replace the seal and put the trans back. Many transmission shops will tell you that once you have a front seal go it won't be long before the transmission fails. It's all a crap-shoot, so take your chances. If the leak isn't too bad you can try some Trans-X transmission leak stopper. It might give you a few more months service out of the transmission, but you'll probably need some major work soon.

User Avatar

Wiki User

โˆ™ 2005-11-26 00:38:52
This answer is:
User Avatar
Study guides
See all Study Guides
Create a Study Guide

Add your answer:

Earn +20 pts
Q: How do you fix 1991 Cadillac Deville transmission leak?
Write your answer...
Related questions

What causes a 2004 cadillac deville to leak transmission fluid while in reverse?

transmission leak in reverse only

What causes transmission fluid leak between motor and transmission on a 1998 Cadillac deville?

seal. expensive

Why would the AC stop working in your 1987 Cadillac Deville?

Blown fuse? Refrigerant leak?

What is it when there is a leak coming from where your return line and power steering pump reservoir connect on a 1991 Cadillac sedan deville?

either the hose is split or the resivoir is cracked either the hose is split or the resivoir is cracked

Have water leak on a 4.6 32 valve v8 northstar engine in Cadillac deville?

waterpump or radiator hose

How can you tell if the water pump is bad on a 99 cadillac deville?

If a water pump is bad they usually leak coolant

1998 Cadillac Deville has slight coolant leak after driving it Where could it be coming from?

water pump or thermostat housing crack

Why does your 2001 cadillac deville die when it comes to a stop?

My 01 deville had a cracked intake boot, between the throttle body and intake manifold, it would only leak when eng was hot.

What does it cost to repair a vacuum leak on a 2001 deville?

What does it cost to repair a vaccum leak on a 2001 deville

What would make your 1990 cadillac deville go off when you stop at a red light or hesitate when i press the gas?

Might be a vacuum leak

Can you purchase freon for your 2002 Cadillac Deville in the store?

Yes,any auto parts store has it. If you get it with oil be sure it is synthetic oil. Since you are adding you may want to get the one with leak stop in it in case you have a small leak

How to fix Oil leak 99 cadillac deville?

put a new motor in. it'll cost about the same as fixing the rear main that is more than likely the cause of the problem.

Why does the air ride suspension pump in a 2005 Cadillac Deville run constantly?

No it should not. They have a ride height switch, which cycles the compressor. You probably have an air leak in the system.

How can you fix the fluid leak of a 1991 Jeep Wrangler manual transmission The leak seems to be from the drive shaft.?

The rear, or tail shaft, of a transmission has a seal around the output shaft. The drive shaft will have to be removed and the seal replaced.

Where does transmission fluid leak from?

Transmission fluid can leak from many places. It could leak from the actual transmission itself, or any of the tubing that goes from the transmission to other parts of the car.

Does the 2005 cadillac cts have a transmission dip stick?

No since there is no need to add transmission fluid unless there is a leak and should take it to a dealer and there is also a fluid life indicator message

What can cause a cadillac oil leak?

old gaskets, replace asap or risk losing your engine or transmission or some other catastrophic repair

How do you refill the refrigerant for the ac system on a 1991 Cadillac Seville?

By taking it to a professional who has the skill, knowledge, and proper tools to perform this service. Also if it is low of refrigrant, then it has a leak. Adding refrigerant to a system with a leak without repairing the leak is illegal.

How do you stop oil leak in 2004 Cadillac CTS?

you fix the leak

Coolant leak from transmission Honda?

Coolant should not be leaking from your transmission the only fluid in your transmission is transmission fluid. A faulty transmission seal can allow transmission fluid to leak out.

How much for a transmission leak on a 2007 Pontiac g6?

transmission leak on a Pontiac g6. what could this be

Is it ok to patch a leak in a radiator in a 1998 cadillac deville?

It depends on where the leak is and what you mean by patch. If the leak in in the radiator matrix simply putting something over it will not work. There are products which can be added to the coolant as a temporary measure. A radiator can be repaired by brazing or welding but if it has got to the stage where one part is corroded and leaking it is best to change the radiator.

How many place can a Transmission leak 1992 Cadillac STS?

Numerous places, If your not counting lines then rear seal, front seal, pan gasket and I can go on...!

How do you fix a transmission leak?

depends where around the tranny the leak is

What causes coolant loss in a 1998 sedan deville?

A leak some where in the system, such as a bad head gasket, a cracked head, a leak from the radiator, a leak from the water pump.