The noise is difficult to diagnose over a forum, but if the battery is charged correctly, and is hissing as you put it, the starter motor may not be working correctly, get a second opinion from a garage
Start with the basics. Is the battery fully charged? Are the battery post clean and tight. If you answer yes to both of these and the engine will not turn over and you hear nothing, suspect the starter, starter solenoid, or ignition switch is defective.
Bad battery or bad battery connection. The click is the starter trying to engage, but lacking the power to turn the motor.
Typically, a Click-click-click noise when attempting to start a vehicle is the sure sign of either a dead battery or a loose battery connection. Try tightening the battery terminal connections. If this doesn't help, you may need a new battery. A jump start will avoid a towing expense.
clean the battery terminals with baking soda and water. them jump it
check for loose connections
Maybe flat battery?
clicking noise when trying to sart engine usually indicates a flat battery.if the battery is not the problem ,the starter motor needs repair.
Does the engine turn over and then make the clicking noise while trying to start, or does it not do anything but make the clicking noise when you turn the key. If its not turning over at all then it might be a battery problem, Try cleaning the battery terminals, and/or charge the battery, Could also be the starter solenoid, but start with the battery first.
Sounds like your battery needs replacing.
if you turn the key and nothing is making noise check the battery if you are trying to start it and it is making noise press the gas a little bit so that the car can pump gas into the engine
maybee your battery is low The battery wouldn't matter there, the starter is having a problem
Needs a new starter
I don't know what "after battery is off" means, but if it is clicking while trying to start, then most likely the starter/solenoid/relay is bad.
It Would Be Best To Remove Your Battery, Clean All Connections While Charging Your Battery. Then Try To Start. You May Not Be Getting A Good Connection When Trying To Jump Start & Your Battery May Be Completly Discharged. When You Get `er Going Run By A Parts House And Test Your Battery. Good Luck
Start with the basics. Is the battery fully charged? Are the battery post clean and tight. If you answer yes to both of these and the engine will not turn over and you hear nothing, suspect the starter, starter solenoid, or ignition switch is defective.
charge the battery, change the battery, use the back up start either a pull start or kick start.
Bad battery or bad battery connection. The click is the starter trying to engage, but lacking the power to turn the motor.