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1989 Chevy Camaro car wont pass gas to fuel filter

Tiny
MGCAMARORS
  • MEMBER
  • 1989 CHEVROLET CAMARO
  • V8
  • 2WD
  • AUTOMATIC
  • 132,000 MILES
My car wont pass gas to fuel filter, replaced fuel pump, fuel filter, fuel pump relay, but wouldnt start, then we took fuel filter off to see if gas was pumping to fuel filter and it wasnt, the fuel pump turns on for bout 3 to 5 seconds so we think its working just gas does not have any pressure ccoming up to even get to fuel filter just need to know what I ciould be.
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Monday, March 30th, 2009 AT 11:56 PM

9 Replies

Tiny
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  • MECHANIC
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Hook up a fuel pressure gauge and read the pressure-No pressure double check the fuel pump
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Tuesday, March 31st, 2009 AT 12:03 AM
Tiny
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Thank for advice will do, just had some more questions could it have to do with something electrical, or a oil/fuel sending unit if so where is that located also some people said I could have a bad fuel or clogged fuel line coming out from tank cause the fuel pump has a strong hum when it turns on just trying to find if could be something else cause dropping that tank is no joke
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Tuesday, March 31st, 2009 AT 3:27 AM
Tiny
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The only way to tell is to check the fuel pressure even though the pump is humming.
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Tuesday, March 31st, 2009 AT 2:22 PM
Tiny
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Got gauge could u give quick info how to use it how much pressure should hhave do I put fuel filter back on
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Tuesday, March 31st, 2009 AT 8:46 PM
Tiny
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What type of fuel system-Carb/TBI/MPFI?
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Wednesday, April 1st, 2009 AT 9:03 AM
Tiny
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Sorry its a 350 tbi
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Wednesday, April 1st, 2009 AT 12:56 PM
Tiny
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Read para 2/3 below


https://www.2carpros.com/forum/automotive_pictures/12900_fuel_pressure_7.jpg

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+1
Wednesday, April 1st, 2009 AT 4:47 PM
Tiny
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Checkd pressure it kept marking 6 to 7 so I guss no pressure dont know what it could be
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Monday, April 6th, 2009 AT 7:21 PM
Tiny
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Is that 6-7 kg/cm2 or PSI? If its psi the fuel pump is no good or the pressure is leaking somewhere such as the injector/s, fuel pump check valve and pressure regulator.
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Monday, April 6th, 2009 AT 11:53 PM

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