Question about 1997 Chevrolet Blazer

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Just died I HAVE A 97 BLAZER LS WITH A 4.3VORTEC SPYDER INJECTION. SUNDAY I CAME BACK FROM DAYTONA PULLING MY 18 FT BOAT AND HAD NO PROBLEM.I BACKED IT IN THE YARD AND DROPPED THE BOAT. 35MIN LATER WHENT TO CRANK IT UP AND ALL IT DID WAS TURN OVER NO CHECK ENGINE LIGHT OR ANY THING.THE FUEL PUMP IS PUMPING,AND IT RUNS WHEN YOU POUR GAS IN THE INTAKE SOME ONE SAID THE SPYDER INJECTION HAS GONE OUT I JEST DONT BY IT IHAD NO PROBLEMS WITH THIS TRUCK IT RUNS GREAT ! SO PLEASE HELP IF YOU CAN!!!

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  • Anonymous Jun 19, 2008

    i have a 97 chevy with the votec engine died would not start towed it home changed the fuel filter then the fuel pump the map censor and know it has problem like its not takeing fuel properly loses power and when you push the pedal down for fuel it boggs down like its flooding.

  • blondie670 Aug 02, 2008

    I have a 97 blazer V-6 Vortex 4.3 liter and it won't start unless you pour gas in the carbuerator and then it will run fine untill you cut it off. Then when you try to start it again it won't crank up unless you pour the gas in the carbuerator again. We have changed the fuel filter and it didn't make a difference.

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These systems are pretty notorious for that. They get internal seal leaks.

Unfortunately, they are not a serviceable unit, and the entire "octopus" will need to be replaced.

You can usually find rebuilt units on Ebay much cheaper than the dealer wants for a new unit. Just make sure you buy from a reputable source, and one that offers a warranty on the unit.

Posted on Jun 11, 2008

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I am having same problem with same vehicle. We are replacing several parts, but we are guessing it is the fuel pump. It ran SUPER then just died suddenly. Will not start unless you pour fuel down it's throat, then runs horrible. You could check the fuel pressure going to the fuel rail, it should be 65-66 psi on a cold start. If it is just 2-3 psi low, the injectors will not open up. We are testing ours now. Good Luck!

Posted on Jul 28, 2008

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95 4x4 had same problems last year change the injectors all 6 are one unit also change fuel pressure regulator it is right there with injecyors

Posted on Apr 27, 2009

  • felxthacat Apr 27, 2009

    i have 95 blazer did everything last year replaced it all did the injectors and fuel pressure regulator ,runs perfect

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Theres a relay in the glove box i have a 96 sonoma that had the same problem. if you look in the glove box and pull the relay access off depending there should be 3 relays now if its fully loaded and has running lights theres a way to check it.
going from right to left the first one should be either the running lights or horn and the second one should be the same but the third one on mine was the relay that sent the signal to bump the fuel pressure up for the start one i replaced that it ran perfect.
if you have any questions email paintball4255@yahoo.com

Posted on Jun 15, 2008

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