My brake fluid is leaking. What could be the possible problem?

Check for external brake fluid leaks on brake master, on all wheel brake cylinders/calipers. Check also for leakes under the vehicle for possible brake hose and pipe leaks.

If it is near the tire it is brake fluid. The brake fluid reservoir is back by the firewall driver side of engine compartment. Your car uses DOT 4 brake fluid.

Since the Caravan is front wheel drive, there would be no transmission lines running to the rear of the vehicle. This reduces the possibilities to either a fuel leak, or a brake line. If you smell the fluid you should be able to tell immediately if it were gasoline. This would be a dangerous thing. Fuel leaks must be isolated and repaired quickly to avoid risk of fire. If it were brake fluid, and the leak were stead, you should, if you inspect the brake master cylinder reservoir, a lower level of fluid than normal, possibly even a total loss of fluid in the rear chamber. If so, then the brake line to the rear has probably ruptured from age/corrosion. It must be repaired or replaced.

The light can come on when the brake fluid is low in the reservoir. Check the brake fluid level and add as necessary using only brake fluid from a sealed container.

If the fluid was low check the brakes. Low fluid can indicate a possible leak in the brake system or worn out brake parts.

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Fluid by the back wheels could be an indication of a brake fluid leak. Check the reservoir on the master cylinder for brake fluid level. If it's low, you've identified that you have a leaky brake line and should replace it immediately. If the fluid is full, it's possible that you've a transmission fluid leak that traveled along the undercarriage and is dripping by the back wheels.

For the fastest indication of what the fluid is, check all the fluids, power steering, auto transmission (if equipt) clutch if it's a manual transmission etc

You have low or no brake fluid...check the brake fluid resivor. good luck

Do not drive the vehicle until it has been repaired. You will endanger your own life and others. The problem could be worn out brake pads and brake shoes, leaking brake fluid at the wheel cylinders or calipers. Have you checked the brake fluid reservoir to see if it needs fluid? Make sure it is full of brake fluid. With the engine running, pump the brake pedal several times. If it comes back up, then slowly bleeds back down, youv;e either got air in the brake lines or you are leaking brake fluid. You need to have the brakes repaired as soon as possible.

usually an indicator of either a loss of pressure due to low fluid and/or air in the system (brake fluid leak) or extremely worn rear brakes (if drum brakes in rear). possible causes include master cylinder (internal fluid pressure leak), external fluid leaks (calipers, lines, wheel cylinders), rear drum brakes extremely worn down or severely out of adjustment. normally worn disc brakes may reduce pedal height SOME, but seldom "to floor". but the "mushy" quote combined with the "floor" quote suggests a hydrolic fluid pressure problem.

I believe driving on the donut spare has nothing to do with the problem-it isn't all wheel drive option is it? You say you added brake fluid, how low was the level? If it is losing fluid, you might have a rusted brake line that is leaking. Any evidence of a leak under the van? It's possible the master brake cylinder is bad, but this seems to be a sudden start of the problem. Did the tire blow out or did you go out to find it flat in the morning? I believe this is a leaking brake line issue. It is possible that if the tire blew out while driving, or you hit something (like debris) in the road, it may have damaged a brake line. As I mentioned earlier, it could just be a rusted leaking brake line. If brake fluid leaked on the exhaust or any hot components, it would give off a 'chemical' smell ( or even have an odor if it just leaked out) Let me know what you find.

you should be looking for the drivers side wheel (brake) cylinder it is inside the drum with the brakes at the top usually, look at the cylinder on each end there is a small black rubber cap, pull it back a little in one spot and see if brake fluid runs out, if so replace it. Also possible that the brake line is leaking, so check it out too.