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1993 GMC Van 5.7L Surge
Posted to GM Driveability on 5/27/1998

Hello Gang,

We are in need of some help on this van. After a cold start and engine idling for a couple of minutes {in open loop} the engine will start to surge up and down roughly 150 rpms. It will continue to do this only at an idle for several minutes even ...

 
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car Vehicle Data

1993 GMC Van

VIN 1GDEG25K7P
Engine5.7 L / 8 cyl
EmissionsUS FED
SymptomsSurge
OccursIdle, Intermittently
Misc.Fullsize Van 2500
Message Closed

car Vehicle Data

1993 GMC Van

VIN 1GDEG25K7P
Engine5.7 L / 8 cyl
EmissionsUS FED
SymptomsSurge
OccursIdle, Intermittently
Misc.Fullsize Van 2500