Skylark L4-144 2.4L DOHC VIN T SFI (1997)
Evaporative Fuel Vapor Return Hose: Service and Repair
Caution: To Reduce the Risk of Fire and Personal injury:
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Always cover nylon vapor pipes with a wet towel before using a torch near them. Also, never expose the vehicle to temperatures
higher than 115°C (239°F) for more than one hour; or more than 90°C (194°F) for any extended period.
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Take care not to nick or scratch the nylon vapor pipes. If damaged, replace the nylon vapor pipes.
Removal Procedure
Notice: When replacing the Evaporative Emissions (EVAP) System pipes or the EVAP hoses, always replace them with the original equipment or
parts that meet the GM specifications for those parts. When replacing EVAP pipes, the replacement pipe must have the same type of fittings as the
original pipe to ensure the integrity of the connection. When replacing EVAP hoses, use only reinforced fuel-resistant hose identified with the
word Fluoroelastomer or GM 6163-M on the hose. The inside hose diameter must match the outside pipe diameter. Do Not use rubber hose within
100 mm (4 in.) of any part of the exhaust system or within 254 mm (10 in.) of the catalytic converter.
1. Remove the retaining hardware and clamp as necessary.
2. Note location and position for future reference.
3. Inspect hoses and vapor lines for cuts, swelling, cracks, kinks and distortion.
4. Remove the pipe or hose.
Installation Procedure
Important: Follow the same routing as original pipe or hose.
1. Install the vapor line or hose.
2. Install the retaining hardware and clamps.
