One problem related to engine clicking and tapping noises has been reported for the 1999 Suzuki Grand Vitara. The most recently reported issues are listed below.
The engine would not turn over, could not be jump started, and was towed to the dealership. The diagnosis was a dead cell battery at ~48,000 miles. Two weeks later the engine would not turn over, but eventually did after a jump start. The following two weeks, when the key was turned to try and start the engine, all that happened was a clicking noise. Jump starting was ineffective. It was towed again to the dealership. The diagnosis is engine siezure. The vehicle is four years old, with ~48,000 miles, and perfect service records. The dealer recommends replacing the entire engine in order for the vehicle to run again.