Fuel pump failed on 1987 Chevy pickup truck. Where is it ?

Yes it does, and also a fuel pump relay controlled by the ECM or PCM.
Can be either problem.

FUEL PUMP RELAY 1987 Nissan/Datsun Truck D21 Truck 2WD 2.4L FI 4cyl The Fuel Pump Relay is located: Under hood, passenger side, front engine area, rear of headlight housing, mounted on upper fenderwell

Kent, That sounds like normal operation.....see this link (https://www.justanswer.com/chevy/0z9bu-fuel-pump-relay-located-1987-chevy-silverado.html) The ECM shuts the pump down if the engine doesn't begin running in two seconds. I would bleed out the fuel line up to the TBI...crack the line at the TBI then cycle the key a couple of times until you see gas coming out of the line at the TBI. That will ensure you have fuel at the TBI, then try to start the engine. See the link for additional info.

well you leaking gas either from your fuel pump tank float assembly inside the tankand gasket is bad that seals the fuel in or possibly a bad fuel neck aka filler tube also check your fuel lines and make sure all clamps are tight

Try the fuel pump relay or try another fuel pump.

I had the same problem with my old 1987 Chevy blazer s10. The problem was the ground wire of the fuel tank was rusty and it broke. So simple was the problem. But before that, I checked and change the fuses, the fuel filter, the oil pressure switch (this is related to the fuel pump to) and finely when a was ganging the fuel pump saw that the ground wire was broken or damage.

I hope this can help you.

Could be plugs, wires, cap, rotor, fuel filter, poor fuel pressure, weak coil. Basically the best thing to do is do a total tune up and see if that cures the problem, if not then we can dig deeper.

relace the throtle air idle valve.The temp switch will allso cause this problem.

you have to reset base idle see manual at library for procedure

The problem is fuel related. Disconnect the fuel line to see if fuel is reaching the carb.