My gas Hand is stuck on full in my 94 chevy Caprice what do I need to do

Turn off the ignition of car.
Let the engine and radiator cool.
Refill the coolant to the required quantity with the approved type.
Wait until the coolant helps reduce the heat completely.
You should not see the light now.

Vacuum hose is sold at many store in rolls, you would measure how much you need and replace the pieces one at a time, so as not to get them confused.
They also come in many sizes, so you should take the a sample of each size you find to get the right replacement.
Be blessed.

The car needs to be scanned. It is free at Autozone, Oreilys, and Advance autoparts. Get the Code number for the bad part. The clerks can tell you what is wrong.

Sounds like you need a new fuel sending unit. It is a big job because the device is located inside the gas tank. You have to drain it, drop the tank, replace unit and reinstall the tank.

My gfs car is doing exactly that, 94 caprice classic, you find out yet?

check your distributor, remove fuel pump to take access, check the high and low resolution wires,

heres a wiper linkage asm diagram, the wiper washers are on the hood or on the cover to deck,then the hose runs through the wiper arm to a nozzle, if you remove the arms you can lift cover enough to look at the hose to washer connection,also check hose to arm they often break there good luck.

The thermostat should be a 185 Hope this helps...Stay warm...

Sounds like the timing is retarded. Loosen the distributor hold down bolt and turn the distributor counter clockwise about a half inch or so. Then drive the car. If it runs better then get a timing light and set the timing to 10 to 15 degrees before top dead center (btdc) at idle with EST disabled (if equipped) or if it has a vacuum advance with vacuum hose disconnected. Good luck.