Question about 1994 Chevrolet S-10 Blazer

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I have a 1994 chevy blazer 2wd wiyh a 4.3 chevy vortex engine . i have changed the fuel pump out 3 times since the origenal one went out. all of them run but they spit and sputter and surge

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  • Anonymous Dec 22, 2008

    i have changed fuel pump and truck starts but wont stay running.

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3 Answers

Check to make sure the short high pressure line between the pump and outgoing fuel supply line doesn't have any cracks (the small line inside the tank) -- I had same symptoms only to find pump could not hold pressure because of the bad line ( make sure you replace with high pressure line) best of luck!

Posted on Sep 23, 2008

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Fuel filter plugged up,or may be fuel relay

Posted on Sep 08, 2008

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Change the fuel filter if you have not already

Posted on Sep 05, 2008

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I have a 1994 Chevy S-10 2wd w/4.3W engine. My problem is that when running and in gear it will start to stumble and hesitate and then die! After this it will not restart even if you spray either into the...


Hi
I had the same problem. I was buying my fuel pumps at Advan**
Auto Parts and Auto Z*** . I always bought the cheapest pump but after dropping the tank 3 times I was frustrated so I bought the best pump they had I think it was made by Bosh. Never had that problem again.

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