Battery is fine but I get a clicking sound before it dies. Van will not start. What could it be? alternator or starter? How do I tell? Thanks, Don

If it's a rapid machine gun like clicking it is probably the starter motor dying. Wiggling the wire suggests an electrical earth issue. Disconnect the battery. Disconnect the starter motor wire at the engine end and rub the two faces that touch with fine sandpaper. Refit the wire and the battery.
You should also get the alternator and battery tested as the battery light and heater issues could be due to a charging or battery problem.

Starter clicking, not enough power to turn motor over. Check the battery, make sure charge is full. If it is, your starter is shot, replace it

Sounds like you need a new battery and an alternator. You can have both of these parts checked at your local AutoZone or parts store.

Sounds like the battery is dead. If the lights work and the horn blows at least it isn't your alternator!

check ur battery cables an connections for resistance causing a bad voltage drop upon starting.chek ur grounds at the blok for bad rusted connections and wiresthat are all corroded, peel insulation bak to inspect wires for corrosion

Sounds like the alternator is shot. The alternator charges the battery when you re driving and also gives power to the engine and accessories. If this dies the car will run on battery power until it dies.

possibilities are connections at battery corroded or loose battery dieing not holding charge alternator not charging battery or starter shorted out or connection problem try to boost vehicle if starts have battery /alternator tested for proper working order

Have the alternator checked.

check your alternator..

My 2004 Kia Rio just started losing compression and died on me. I tried starting it and it only clicks. I checked the battery cables and they are not corroded and very tight. Could it be the battery or the alternator not charging the battery? there is no water in the oil and it's not the water pump.