Question about 1994 Chevrolet S-10

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Replacedfuel tank,sendingunit and fuel pump on a 94 chevy s-10 blazer. acts like it's not firing, replaced coil. still nothing. today didn't hear fuel pump come on. do i need to take fuel tank off again to troubleshoot the fuel pump?

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No you should by able to read power,by at muti meter.

Posted on Jul 01, 2009

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My 94 full size blazer starts and idles fine in park and in neutral. When I put the truck in gear and hit the gas, it'll start, then act like it wants to die. The Catalytic converter is off, I'


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Jun 24, 2012 | 1993 Chevrolet S-10 Blazer

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I put in a new fuel pump in the tank and the 94 chevy blazer and it still want start can you tell me whats wrong


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Apr 19, 2011 | 1994 Chevrolet S-10 Blazer

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when ordering fuel pump, need to know the vin letter w or z. one is for a carb and the other is for a injection or vortec engine. one puts out 11psi and the other puts out 60psi. is this an in tank fuel pump?

Nov 12, 2010 | 1994 Chevrolet S-10 Blazer

1 Answer

I just replaced fuel tank, sending unit and fuel pump. got everything back together, and engine turns over, but acts like it's not firing. i replaced the coil, but still nothing. now today i didn't hear...


Do you have spark coming from the plugs? if yes, how did you replace the fuel pump, remove the bed or drop the tank? If you removed the bed make sure that you tightened the ground wire on the frame at the rear near the taillight plug. If the ground is not tight or is broken the fuel pump will not work. If you didn't remove the bed, check the relay and fuse up front on the drivers side inner fender fuse box. I'd double check the ground wire at the rear as well just to make sure it's good.

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My 94 blazer wont start


I have the same problem with my 95 blazer I have heard that it is the fuel pressure regulator. That is the next part I will be replaceing.

Good luck to all.

If any one finds any thing out please let me know!

Dec 13, 2008 | 1994 Chevrolet S-10 Blazer

1 Answer

2001 chevy blazer not starting


I had this same problem with my 1997 Blazer, which required a fuel pump replacement as Nitrobike said. The sign to look for is when you get in the Blazer, turn your key forward to the accessory position, but not the start position. You should hear the fuel pump charging. It sounds like a hissing or whirring noise for about 2-3 seconds while it pumps fuel into the lines to prime the engine.

Fuel pump replacement isn't cheap, about $700-$1000.

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