Can someone please tell me what needs to be fixed in my 1992 oldsmobile achieva?

I have a 1992 Oldsmobile Achieva. It has a 4 quad engine. Recently it began acting up on me. When I drive,sometimes the engine light will come on, the spedometer will , by itself , go all the way up as far as it goes and the car will either try to accelerate on it's own or it will stall.





Normally it will do this for awhile then it will begin acting normal again. Well, the other day it began to do this and all of a sudden I hit the brakes and the pedal went all the way to the floor! Now there are no brakes on the car at all. There is some kind of fluid leaking from behind the tire, which I am assuming is brake fluid.


Up until this happend, I have had no brake problems, nor any indication of a brake problem.


Does someone have any idea what this could be? and how expensive it will be to fix?|||Well the first thing is the computer, with the older GM's the computer board would crack and cause problems like you were describing: speedo goes erratic, engine stumble or stall, check engine light comes on and off or a combination of these and other symptoms. You will need to replace the computer and check the ECM connectors and wiring for damage. The brake problem is a leak, likely a brake line or hose that broke when you pushed the pedal down.|||Sounds like you have a couple problems. Being that the car is 15 years old you will tend to get more problems. Yes, its sounds like you have a leak in a brake cylinder or line near the one tire. Also, you have got some kind of serious eletrical problem. Hard to say exactly without seeing it myself. If the engine light came on, there will be a record in the onboard computer, so you can have a mechanic plug it in and see what it says. Might be the main computer that's bad. Might be the cruise control thats shorted. Might be a number of other things. If it accelerates on its own, its dangerous to drive. I would get it checked out by a qualified mechanic before you drive it again. I hate to say it, but it doesn't sound like a cheap fix to me.|||The vehicle is 15 years old, 5 years past its normal life span. The fix may be more than it would be worth once fixed. The brake problem seems to be a wheel cylinder, and not related to your other problems.