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How do I properly vent a fuel tank?
I’m learning to work on cars that might need to be vented. How do I properly vent a fuel tank?
Bonnie Stinson · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
To properly vent a fuel tank, you’ll need to elevate the car, test the canister with a vacuum gauge, replace it if necessary, and reconnect the lines to the canister.
Step one is to elevate the back end of the car.
- You will need a jack and jack stands
- Find the charcoal canister near the fuel tank on the driver’s side
- Closely examine the canister for damage and look for cracks, leaks, or strong smells
- Check the seal using a hand vacuum gauge
- If the seal is good, check the air filter
- Get a new charcoal canister if you see any damage
- Disconnect the electrical and vacuum lines using a flathead screwdriver
- Check the lines carefully for damage
- Use a ratchet and socket to take off the bolts and remove the old canister
- Install the new canister
- Reconnect the lines
- Lower the vehicle
Make sure to position the vent tube high enough. It should be higher than the highest point on the tank. Any dips will accumulate fuel or condensation, building up pressure and causing a fuel smell.
You sound like someone who takes care of their vehicle. Make sure your
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- Gregory R.
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