Hood latch cable is broken on my 99 chev cavalier

There are a lot of videos on youtube about this. Search for it.

Is the cable broke? If not, try having someone push up and down on the hood (Gently) while you pull the hood release. If it does open, get out the WD-40 and lube the latch and cable.
If not or the cable is broken, you might try "fishing" a coat hangar wire with a loop in one end between the grill and radiator to hook the hood release latch where the cable attaches. Pull the wire and it MAY open. Good Luck... ....

The cable is probably broken and not connected to the latch. There are two latches, a primary which the cable is connected, and the secondary or safety.
You'll have to try to access the latch from under the car going up between the bumper and the radiator. You may need a body shop to do it.

my hood lock is broken, the one on the hood not the latch in the car, on my 2009 Chevy equinox. how do I fix it

We can not solve that problem on the internet

Go to a neighbor & ask for help

I would try pushing down and pulling up on the hood while someone operates the hood latch. I'd try to spray some WD-40 between the hood and grill area. From underneath, you may be able to use a long screw driver to try to move the release lever over to release the hood.

I assume you mean the cable has broken off the handle? If so, you can locate the cable on the underside of the vehicle (trace it from the hood latch) and pull it with some pliers. If it has broken off the latch, you will need a long flathead to reach out from under the bumper and manually flip the bottom latch the cable is attached to.

if it is broken at the handle you should be able to grasp the cable with pliers to pull it otherwise you will have to go out front of truck and the best way i found requires long arms, but you would have to use a flashlight and slide under front bumper and look upward to find cable/latch assembly. You may be able to do it through the grill but if cant see it through the grill under neath.if you in front of truck pull latch to right and it will release.

Get someone to press down the hood while you pull the lever should open when opened adjust the cable and grease the catch.

There is a rachet right below the hood that you can reach from radiator grill.
Take a long thin screw driver, reach it and turn that rachet.
You will hear the "click" sound and the hood will pop open.