Strange Sound from the Engine ...

When you are on the road or idling, there is a voice saying "click click click click". It sure came from the engine, but I couldn't figure out where it came from. I went to the mechanic that the day would not sound. When I gas, that sound goes away.

What do you think is happening to something like this?

I was going to ask for help on one more topic.

When I gas when the vehicle is idle, the cycle drops too late. I take it up to 3000 revolutions and I pull my feet out of the gas at once, but it takes a long time to reach the 1000s. This causes gas consumption. What should I do or is it normal?

Thanks in advance.

Good luck with .