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2000 Chevrolet Suburban 1500 LT 5.3L Poor Idle Quality
Posted to GM Driveability on 7/17/2007 8 Replies

it idles ok, about 600 rpm in gear at idle but randomly drops to about 380 rpm then picks up again. i checked the throttle motor assy wiyh vantage seems ok. no codes are stored. found tsb but its not for this [...] appears normal but i'm not to famliar with a ...

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Message Closed w/FIX

car Vehicle Data

2000 Chevrolet Suburban 1500 LT

VIN 3GNEC16T1Y
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways, Under Load, Idle
Message Closed w/FIX

car Vehicle Data

2000 Chevrolet Suburban 1500 LT

VIN 3GNEC16T1Y
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways, Under Load, Idle