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1991 Chevrolet C60 Sch Bus 366CID Poor Idle Quality, Hesitation, Surge, Stall
Posted to GM Driveability on 10/26/2007 6 Replies

Engine has bad hesitation with acceleration, bogs down and will sometimes stall. Tested ignition system and coil output, all OK. Tested fuel pressure and flow, 14 to 16 lbs engine running, 12 ounces in 30 seconds. Tested fuel pressure after fuel filter and als...

6 Replies Received (View Replies)

 
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet C60 Sch Bus

VIN 1GBJ6P1P4M
Engine366 / 8 cyl
DeliveryFI / TBI
SymptomsPoor Idle Quality, Hesitation, Surge, Stall
OccursAlways, on Accel, Idle
Misc.School Bus

Trouble Codes

44O2 Sensor Lean Condition
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet C60 Sch Bus

VIN 1GBJ6P1P4M
Engine366 / 8 cyl
DeliveryFI / TBI
SymptomsPoor Idle Quality, Hesitation, Surge, Stall
OccursAlways, on Accel, Idle
Misc.School Bus

Trouble Codes

44O2 Sensor Lean Condition