I had a very similar problem on my 1987 Civic sedan. You will need to jack up the front end, remove the flat plate just to the left of center behind the bumper, and with a long screwdriver locate and push up on the latch release. Once the hood pops open and you release the second safety latch, you will need to jerry-rig or replace the cable. Good luck.
The latch itself is held on with bolts, easy enough to change. The release cable has to be fed down the inside of the rocker panel and into the trunk.
Begin by removing the retaining bolts from your hood latch. You can access the hood latch retaining bolts from the front grill. Once the retaining bolts are removed the hood latch assembly will come apart, releasing the hood.
my hood release cable broke in my 1986 Honda accord. We had to remove the front bumper, and the metal piece behind that, and we were able to remove the bottom of the hood latch, and now I drive it daily on the interstate held down with an alon wrench in the screw hole, and 2 bungee cords (just in case) never had a problem.
there are 2 bolts at the front that hold down the front plate with hood latch remove those bolts and the whole front plate with latch comes off.
open hood go to the center latch dislodge the plastic cable retainer remove cable loop from the latch remove the two bolts from cable retainer left of the steering cable will drop thread it through the firewall from outside in reverse procedure.
Take the grill out and remove the bolts holding the latch on.
Not entirely certain about this one but on most cars you can look up from under the front bumper and if you can see the hood latch you should be able to use a screwdriver or a pliers to trip the latch.
Remove the bolts or fasteners and install the new one.
The reason is because the cable connecting to the latch has already been over stretched. Changing a new cable should rectify your problem.
Just had this happen to me... hope you don't mind unbolting stuff. I had my car parked for a year, and the latch had rust shut. The hood release cable wasn't able to budge the release at all. Unbolt the bottom bolts and screws of the front fender. That should leave the top part under the hood still attached. You should be able to pry the bottom part of the fender enough to work on the latch from under the car. Pull off the bottom part of the fender as much as you can. Go underneath the car and locate the hood latch. Take a 10mm wrench and remove the three bolts holding the latch in place. Remove the hood release cable from the latch. The hood should open now. Good luck!
Wedge a screwdriver in the front to create tension on hood then pull the hood latch. It should open.
if the cable is still attached to the latch, then cut it to length where it sets right below your lower valence. just crouch in front of car, and pull cable. if cable is not attached to latching device, use a screw driver to remove the latch support beam(i think it has three bolts) and wiggle your hood up and down, slowly moving the screwdriver towards the latch. with some luck you can jimmy it open. or sawzall the hood off! Kenny