Sounds like a bad, burnt wire, or a blown fusible link. It runs on starter fluid or gas put in the air system, but the fuel pump, (electric) is not working. These types of problems can be hell to track down. Fusible links can appear good, but be bad. At any rate, its not any of the fuses inside the vehicle, it's either one under the hood in that box or a fusible link or bad wire somewhere under the hood. Basically your whole electrical system is out, so I would check main leads. Does the battery stay up even tho it's just setting? If it stays up, is not a dead short. Good luck, fixing it will be easy, but finding it a real pain.
SOURCE: Chevrolet Blazer S10 1993
i recomend getting a book from the auto parts store. it will have all the electrical diagrams. it costs less than $20.00 and will be a good investment. i have a book for all my cars and have never had to go to a shop.
SOURCE: 1991 chevy s10 blazer
Check the fuse under the dash. Did you replace the inline fuel filter? If not, you could loosen the line going into the filter then turn the key to the on position. The pump should run for about 2 seconds then the relay should kick off. Turn off the key for approx. 5 seconds then cycle key back on and the pump should cycle again. If you get a 2 second burst of fuel each time then the pump is cycling. Install a new fuel filter and check the grounded wire by the tank. Hope this helps. :)
SOURCE: fuel pump problems 2003 s10 chev 4.3 v6
Your ECU is what acctivates your fuel pump realy. Put the key on the run possition and pull the ecu fuse for a few seconds and reinstall it ans it should accivate your realy for 5 seconds, Good luck.
SOURCE: fuel pump relay gets hot on a 1995 s10 blazer
Most likely a bad connector on relay or the fuel sock needs to be replaced. if the sock is plugged it would cause the fuel pump to work hard and cause it to heat the relay and make it hot and removing it will cause it not to run. check the connectors to the relay see if they are opened up in the female socket if they are use a dental pick to close them up with. otherwise replace fuel pump and sock at that age with the alcohol in fuel it's killed the pump and sock.
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