Truck keeps blowing fuse #24 - 1990 Chevrolet Suburban

Does the fuse blow as soon as it's replaced, or does it blow when some certain operation is performed such as opening a door, turning on the radio, or adjusting the climate control?

Some of those trucks had a heater coil in the fuel filter bowl. It would short out and blow the fuse . Try unplugging the wire just behind the bowl ,and replace the fuse again. that may fix the problem.

good morning milt,so your saying its the ignition fuse that keeps blowing in the fuse block inside truck,is that right,and does it blow imediately or take sometime.

ac compressor ma have issue wire problem could trip and blow fuse

If fuse #24 keeps blowing it is because you KEEP replacing it without diagnosing and repairing the reason it blew in the first place.

Please review the following articles by clicking the links below:
Where's The Fuse?
What Else Could Be Wrong?

Then a little info:
Fuse #24 protects the circuits for your PRNDL indicator in the instrument cluster, the PARK switch and/or shift lock actuator, and the circuits for the shift solenoids inside the transmission.
One of these circuits are shorting.

If the fuse keeps blowing, I assume it is because you keep replacing it. Those fuses have given up their lives to keep your truck from burning to the ground. Each time a fuse blows, the wires in the system get heated up and weakened. If you keep replacing the fuse, the insulation will eventually burn off of the wires and light the entire truck up. There is a shorted component or wire on one of the circuits that are protected by that fuse. Replacing the fuse without locating and repairing the reason that it blew, will only result in another fuse having to give up its life to keep your truck from roasting and all the other fuses will have died in vain.
The circuits to that fuse will need to be traced, using the wiring diagrams for your vehicle and the proper equipment necessary for performing tests on your electrical system. Nobody online can tell you what the actual cause of the problem is (other than tell you there is a short) without performing the necessary tests on the vehicle itself.

Fuse 24 is a transmission fuse.

You have a short (bear wire) somewhere. Trace the wire and find it.
Have a great evening

check the wiring to fuel tank something shorting. replace wires to fuel tank.

There is a relay panel behind the radio that you can get to from the drivers side. Its a black panel and when you remove the top the relay at the top left. When this relay goes bad it blows fuse #24.