Thanx guys, l think l now have an idea of the root of the problem. When l bought the car, the previous owner had it parked for good 2 year because of the auto gearbox problem. I bought it as was and replaced the gearbox only to realise that the engine compartment had been a rats kingdom. Auto electricians had to put the car on surgery to join some wires. Probably the flaps you are talking about are obstructed free movement by some rats' products of mischief. Will check them first as suggested and come back to you guys.