Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1998EXPRESS 1 TON VAN V8-5.7L VIN RREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSTESTING AND INSPECTION4L60-E AUTOMATIC TRANSMISSIONSCAN TOOL DATA VALUE - EXAMPLES
1998 Chevrolet Express 1 Ton Van V8-5.7L VIN R
Scan Tool Data Value - Examples
1998 Chevrolet Express 1 Ton Van V8-5.7L VIN RSECTION Scan Tool Data Value - Examples
If you have completed the On-Board Diagnostic (OBD) system check, if the diagnostics are functioning properly, and if no DTCs are displayed, you may use the Scan Tool Data Value Examples in the table below for comparison. These values are an average of display values recorded from normally operating vehicles.
IMPORTANT: You should never use a scan tool that displays faulty data. The condition should be reported to the manufacturer. The use of a faulty scan tool can result in misdiagnosis and the unnecessary replacement of parts.
Only the parameters listed below are used in this manual for diagnosing. If a scan tool displays other parameters, the values are not recommended by General Motors for use in diagnosis.
The values below were recorded under the following conditions:
^ Engine is at Idle
^ Upper radiator hose is hot
^ Closed throttle
^ Gear is in Park or Neutral
^ Closed Loop
^ Accessories are OFF
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.