My 89 gmc sierra 1500 5.7 motor starts only with staring fluid can it be a bad computer i have no fuel going to my injectors but when i put staring fluid i can hear the fuel pump working it weird some body pls help
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Sounds like your injectors are not metering fuel. If I remember correctly, your system is fired off of the ignition module. This would at least be a good place to start.
forums.edmunds.com > Chevrolet > Chevrolet Silverado 1500
Mar 20, 2011 - 30 posts - ā19 authors
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Spray starting fluid into the air intake of the engine, if it starts and you have fuel pressure you have no injection or injector pulse as we call it. Check ECM fuse one and two for continuity if it starts with fluid..
usually a bad regular will cause rich operation--not lean. Will it keep running after the starting fluid burns up, or does it stall. If it only runs by continuing to add starting fluid, there is a problem with the injector operation. If you need more troubleshooting steps, please answer and provide engine size.
u can do the check the other way around/ disconnect the fuel line that supply the injectors/ put the pipe in a small plastic container to see if fuel is being supplied by the pump and avoid fuel spill in ur engine/ crank the engine for at least 5 seconds see if the fuel squirts with pressure/ if it does then ur fuel pump is ok / blockage is somewhere down the fuel line/ u can check fuel lines by blowing it with air but u gonna need the help of an air compressor.....
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