2002 Chevrolet Avalanche Start Die Good Fuel Psi New Filter Pump Spray Starting

2002 CHEVROLET AVALANCHE
147,476 MILES
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JOHNDAVEY
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its start and die i good fuel psi new fuel filter new fuel pump if i spray starting stuff in the intake it will good stop spraying it dies
Nov 10, 2012 at 4:57 PM
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ASEMASTER6371
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check the fuel pressure. it may be a failed pump

Roy
Nov 10, 2012 at 5:00 PM
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JOHNDAVEY
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its new what the pressure got to be
Nov 10, 2012 at 5:04 PM
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ASEMASTER6371
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Measure with the Key On Engine Off with the fuel pump commanded ON.

Vin (V,T,U)
Fuel Pressure (gasoline) 55-62 psi

Vin (Z)
Fuel Pressure (ethanol) 48-54 psi

These specifications are taken from the Fuel System Diagnosis. For complete testing of fuel pressures and volume see Fuel System Diagnosis, See: Powertrain Management\Computers and Control Systems\Testing and Inspection


Nov 10, 2012 at 5:13 PM
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JOHNDAVEY
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thank be right back to tell u what it is and how do u fine what ie is in the vin how many # in
Nov 10, 2012 at 5:17 PM
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ASEMASTER6371
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8th digit

Roy
Nov 10, 2012 at 5:31 PM
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JOHNDAVEY
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key on pump run for 2 sec or so about 58 psi
Nov 10, 2012 at 5:34 PM
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JOHNDAVEY
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what do u think it is
Nov 10, 2012 at 5:39 PM
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ASEMASTER6371
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hmmmmm. 58 lbs. thats good enough to start it. there is no toggle for the injectors. i would check the crank sensor as it controls the injectors being toggled.

Roy
Nov 10, 2012 at 5:41 PM
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JOHNDAVEY
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how do u check that
Nov 10, 2012 at 5:43 PM
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JOHNDAVEY
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where is it on a 5.3L vortec
Nov 10, 2012 at 6:10 PM
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JOHNDAVEY
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how do u test a crank sensor on a 5.3 L vortec
Nov 11, 2012 at 6:45 AM
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JOHNDAVEY
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i put in a new crank sensor and it still doing it what could it be
Nov 11, 2012 at 3:07 PM
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