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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-339 STEP 9. Check for leaks in the evaporator line hose C to from hose C. Q: Can the leaks be pinpointed? YES : Replace that hose. Then go to Step 32. STEP 10. Check for leaks in the evaporator line from hose (2) The leakage test with a hand vacuum pump on each hose from hose F to hose H. Q: Can the leaks be pinpointed? YES : Replace that hose, reinstall the fuel tank. Then go to Step 32. NO : Go to Step 11. STEP 11. Check for leaks in the evaporative emission evaporative emission canister. (2) Plug the other two nipples or loop a hose between the other nipples. (3) Apply a vacuum with the hand vacuum pump, and confirm that the applied vacuum does not fluctuate. Q: Does the vacuum pump gauge reading fluctuate? YES : Replace the evaporative emission canister, and reinstall the fuel tank. Then go to Step 32. NO : Reinstall the fuel tank, then go to Step 32. AC002074 HOSE C AC AC002284 AB HOSE D HOSE E AC002037 HOSE F HOSE H AB HOSE G AC000191AB VENT |