Question about 1993 Chevrolet S-10 Blazer

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Help i have a 93 s10 blazer 4.3 vortec it will only start if i spray starting fluid and it will stay running other that that it acts like its getting no gas

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  • tree2421 Jun 17, 2008

    i have not replaced the fuel pump yet and where would i check the fuel pump pressure at

  • prof257 Mar 27, 2009

    Also check the dist. I replaced the spyders,egr,tps,tpc,acv,fuel pump to no avail , Seems to run out of fuel at idle ? , won't stay idling?, plenty of spark? . Found the engine control module was retarding the timing to the point the engine won't run , replaced the whole dist. assy. and it runs great.

  • Anonymous Mar 28, 2014

    The only time this Blazer will start is if we spray starter fluid in the carburetor, help

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The fuel pressure regulator is on the injector which is located inside the intake manifold(2piece manifold). It is replaceable as I did this on mine. The test port for fuel pressure is located at the drivers side rear of the intake manifold. It looks like a large version of an air valve. mine has a cap on it.

Posted on Mar 18, 2009

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Only runs when spraying starting fluid, replaced fuel pump, is there a fuel pressure regulator

Posted on Jun 17, 2008

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Sounds like it needs a new fuel pump. Get a Fuel Pressure Gauge and check it make sure it up to the Specs,What I think is about 35 to 40 psi without looking in my book. Also you would want to make sure the fuel filter was changed, Your getting spark and fuel, But You stated your able to start it with starting fluid so I would say it must be a fuel pump problem.. I hope that help you out. If not get back to me and we can try some more trouble shooting. Take Care, Bear

Posted on Jun 15, 2008

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