94 s10 blazer..no check eng light!! dies after driving for a minute

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#11

12-20-2011, 09:33 PM

kerrhbk

Thread Starter

Join Date: Nov 2011

Posts: 4

changed fuel pump now its just steadily missing out!!!

I changed my fuel pump after checking my fuel pressure, it was at 47 psi at filter and under the hood. Once i changed the pump it has a miss in it when accelerating. Did i do something wrong?

#12

12-21-2011, 07:11 AM

swartlkk

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Join Date: May 2005

Location: Waterloo, NY

Posts: 41,173

Sounds like you installed a bad pump. Pressure should be ~60psi at the fuel pressure test port for the CPI engine.

#13

12-21-2011, 11:54 AM

kerrhbk

Thread Starter

Join Date: Nov 2011

Posts: 4

I said that wrong..my psi was 47 before i replaced my pump

#14

12-21-2011, 11:56 AM

swartlkk

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Join Date: May 2005

Location: Waterloo, NY

Posts: 41,173

So what is the fuel pressure now that you have replaced the pump?

#15

01-17-2012, 03:53 PM

firewalker

Beginning Member

Join Date: Jan 2012

Location: Jenks, OK (outside Tulsa)

Posts: 24

Fuel Filter

Notes

The fuel filter may be overdue for a change, if it is time or past time, just saves problems down the road.

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