PRE-RELEASE
Fuel Tank Leak Test
| Fuel Tank Leak Test |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| Note | ||
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Place a dry chemical (Class B) fire extinguisher near the area before performing a Fuel Tank Leak Check. Before removing the fuel tank for a suspected leak, make sure that the fuel pipes or the tubes are not leaking onto the tank. Check that fuel does not leak from the fuel gauge O-ring when you have removed the fuel tank. If these safety instructions are not observed this can result in personal injury. |
| 1. |
Drain the fuel tank. Refer to
Fuel Tank Draining
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| 2. |
Remove the fuel tank. Refer to
Fuel Tank Replacement
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| 3. |
Plug the fuel feed hose, the fuel limiter vent valve hose, and the fuel tank vent valve hose on the fuel tank.
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| 4. |
Plug the fuel filler neck opening.
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| 5. |
Connect a piece of the hose to the breather hose nipple on the fuel tank and secure the hose with one clamp.
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| 6. |
Submerge the fuel tank in water or apply a soapy solution to the outside of the tank.
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| 7. |
Apply 7-15 kPa (1-2 PSI) air pressure to the breather hose.
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| 8. |
Air bubbles appearing from the fuel tank indicate a leak.
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| 9. |
Replace the fuel tank if the tank is leaking.
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