Anonymous posted an answer for this 1997 Chevrolet Express:
"I had a simular problem. I had bad plug/coil wires. The foil insulation from the engine..."
Anonymous posted an answer for this 1997 Chevrolet Express:
"check fuse box under hood. Has a simular problem. The wire harness routed across the valve..."
Anonymous posted a question about 1999 Chevrolet Express:
"missfire when crusing about 45 to 65 mph, runs fine when under heavy acceleration"
Points 3
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