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1988 Chevrolet C2500 5.7L Surge
Posted to GM Driveability on 10/10/1998

This vehicle came to us with a complaint of a surge at 55 to 60 mph and worse when hot.

Found codes listed below in PCM memory. Cleared codes and they didn't reset, however, surge was evident at cruise speeds above 45 mph at a very steady throttle.

Upon ch...

 
Message Closed w/FIX

car Vehicle Data

1988 Chevrolet C2500

VIN 1CGCK34K4J
Engine5.7 L / 8 cyl
EmissionsOBD I Ca Emissions
SymptomsSurge
OccursAlways, Hot, Cruise
Misc.Pickup

Trouble Codes

32EGR valve
44lean exhaust
45rich exhaust
Message Closed w/FIX

car Vehicle Data

1988 Chevrolet C2500

VIN 1CGCK34K4J
Engine5.7 L / 8 cyl
EmissionsOBD I Ca Emissions
SymptomsSurge
OccursAlways, Hot, Cruise
Misc.Pickup

Trouble Codes

32EGR valve
44lean exhaust
45rich exhaust