Burnt transmission fluid can definitely cause the problems you’re having. If it’s burnt or contaminated, it might be black or very dark red, rather than the nice, clear, bright red it should be. It’s off the to transmission specialist for this one, as the lack of drive could be caused by many things. An experienced mechanic will know this transmission and should be able to diagnose it swiftly.
The bad news is that you might have avoided serious damage if you’d had the transmission inspected when it first started to behave erratically. But continuing to drive it with a problem can often cause further and more serious damage. You may now find that the cost of repairs is greater than the value of the vehicle.
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In most cars, a red dashboard light suggests a serious problem that needs addressing now. An orange light, meanwhile, is trying to tell you that something slightly less important is going on. But something that still needs attention sooner rather than later. In a Barina, the orange light could be indicating anything from a check-engine warning to low fuel level.
The blue light, meanwhile, is more likely to be indicating that the coolant temperature is still low and you should drive gently until it is warmed up.
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The brakes shouldn’t be applied at all if you’re trying to accelerate. What’s probably happening is that the brakes (likely the front calipers) are not releasing as you stop and take your foot off the brake pedal. Then, when you try to take off, the brakes are still applied somewhat and only break free once you hit the accelerator and convince the car to move.
Rebuilding the calipers should do the trick, but you may also have brake pads that are worn beyond their serviceable limit and need to be replaced. You should also check the rear brakes and the parking brake for poor adjustment and dragging.
This is important stuff, too, as driving with dragging or sticking brakes can overheat (and actually boil) the brake fluid, leaving you with no brakes when you need them most. And this sort of problem will only get worse over time, not better.
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