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1998 GMC C1500 Suburban 5.7L Hesitation, Surge
Posted to GM Driveability on 4/13/2009 9 Replies

all ign components new except coil no codes present. int. flutter under slight acceleration. watched misfire counter during test drive no misfires counted. replaced egr valve with known good part. no difference. Any help will be appreciated, Thanks, Al

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car Vehicle Data

1998 GMC C1500 Suburban

VIN 1GKEC16R8W
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsHesitation, Surge
OccursUnder Load, Cruise, Intermittently
Message Closed w/FIX

car Vehicle Data

1998 GMC C1500 Suburban

VIN 1GKEC16R8W
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsHesitation, Surge
OccursUnder Load, Cruise, Intermittently