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1997 Chevrolet Astro 4.3L Misfire
Posted to GM Driveability on 12/1/2005 15 Replies

my conclusion is low fuel pressure under load is causing number six pop it injector to hang up ???

vehicle runs fine untill hard load applied then #six cylender begins to miss also #4 misses but not nearly as bad fuel pressure drops to just below 55 psi and v...

15 Replies Received (View Replies)

  Related Documents & Media  1997 Chevrolet Astro

 
Message Closed w/FIX

car Vehicle Data

1997 Chevrolet Astro

VIN 1GNEL19WSV
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CPI FUEL INJ
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load
Misc.Awd

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

1997 Chevrolet Astro

VIN 1GNEL19WSV
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CPI FUEL INJ
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load
Misc.Awd

Trouble Codes

P0300Multiple Misfire Detected