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1991 Chevrolet Astro CL 4.3L Long Crank
Posted to GM Driveability on 6/23/2004 20 Replies

the ecm is slow to energize the fuel pump relay at times. checked powers and grounds and inputs from the ignition switch. sometimes it takes over five seconds of cranking before the fuel pump relay is energized. i watched the input on a graphing meter and as s...

20 Replies Received (View Replies)

  Related Documents & Media  1991 Chevrolet Astro CL

 
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Astro CL

VIN 1GNDM19Z3M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsUS FED
SymptomsLong Crank
OccursRestart
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Astro CL

VIN 1GNDM19Z3M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsUS FED
SymptomsLong Crank
OccursRestart